6 Ways To Prevent Repetitive Strain Injury In The Lab

What is RSI?

RSI is an acronym for repetitive strain injury which occurs when the same physical movements are repeated over an extended period of time. A repetitive strain injury is an injury to a part of the body that is caused by overusing or straining that body part. “Strain occurs when the body part is called on to work harder, stretch farther, impact more directly or otherwise function at a greater level than prepared for¹.”

RSIs can do damage to tendons, nerves, muscles, and other soft body tissues. Repetitive strain injury generally results from using the body for a task that it is either not designed to perform or capable of comfortably working. Although (RSI) is frequently associated with computer users, it can also affect those who work in the laboratory.

Have you ever experienced aches and pains after a long session of pipetting? Have  you ever experienced numbness, tingling, or a burning sensation in your arms and forearms? If you answered yes, to either or both of those questions, you may be experiencing symptoms of repetitive strain injury. Worn pipettes and poor pipetting techniques are two primary factors that contribute to laboratory RSI.

Repetitive Strain Injury In The Laboratory

Did you know that pipetting in the laboratory is one of the most repetitive tasks in the lab? 

Pipetting is commonplace in the laboratory, so, it is not too hard to believe that hand pain due to pipetting is also a common problem in the lab. Although RSI is frequently associated with computer operators, laboratory technicians have reported hand and shoulder ailments while using modern plunger-operated pipettes.

Hand And Shoulder Ailments Among Laboratory Technicians Using Modern Plunger-Operated Pipettes.

In a 1994 study conducted in Sweden, 128 female laboratory technicians employed by university research laboratories working with plunger-operated pipettes were compared to 25,378 female Swedish state employees in general. “The prevalence of hand ailments among the laboratory assistants was found to be twice that among female state employees in general.” The study also found that pipetting for more than 300 hours per year contributed to an increased risk of hand and shoulder ailments.

A questionnaire survey of the ergonomic problems associated with pipettes and their usage with specific reference to work-related upper limb disorders.

A study conducted in 1997 in the United Kingdom, which comprised of 80 pipette users and 85 non-pipette users (control population) determined that the reported occurrence of elbow and hand complaints were significantly higher for the pipette users. “There is an increase in the percentage of those reporting hand complaints as the duration of the working period involving continuous use of pipettes increases.” An astounding 90% of pipette users who exceeded 60 minutes of continuous operation reported hand complaints.

Symptoms Of RSI

Although they may vary, symptoms generally include pain, fatigue, tingling, clumsiness, coldness, and numbness in the arms, legs, neck, upper and lower back. For example, computer users may experience pain in their arms after extended periods of typing. Some computer users who switch from doing a majority of typing on their desktop to a laptop may experience pain shortly after the switch. Symptoms will develop gradually and will continue to worsen over time if left untreated. For lab technicians using pipettes, symptoms mainly occur in the shoulders, arms, and hands.

Look for these warning signs:

  • Muscle discomfort
  • Aches and pains
  • Coldness
  • Muscle tension
  • Tingling and numbness

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Causes Of RSI

Although there a number of factors that can cause RSI, performing repetitive tasks such as pipetting, where the hand and arm muscles are held tight and tense for extended periods of time, can lead to the development of RSI. As muscles and tendons become overused they may be strained beyond their capacity.

Listed below are factors that can lead to RSIs:

  • Repetitive movement (e.g. pipette plunger)
  • Awkward postures
  • Prolonged muscle tension (e.g. holding pipette)
  • Forceful holding or movement (e.g. liquid transfer from one receptacle to another)
  • Poor ergonomics
  • Poor work practices (e.g. improper pipetting technique)
  • Stress (e.g. cluttered lab)

Identifying the root cause is essential to properly treating RSI. Left untreated symptoms will gradually worsen and could ultimately impact your bench science career.
6 Tips To Prevent RSI In The Lab While Pipetting

Although these tips are geared mainly towards pipetting, they can easily be applied to other repetitive tasks that you perform throughout the course of a normal day in your lab.

1) Relax

Stay relaxed physically and mentally while pipetting. As discussed earlier, stress, prolonged muscle tension, and poor ergonomics are all contributing factors to developing repetitive strain injury. Avoid awkward positions while pipetting and make sure to follow proper pipetting techniques.

2) Maintain Good Posture

Regardless of the activity, typing a report on your computer or pipetting, you want to ensure that you are sitting properly and maintain good posture (your back will thank you). Your spine is strong and stable when you practice healthy posture. Slouching makes it difficult for your muscles and ligaments to keep you balanced and can lead to back pain, headaches, and other problems. Avoid dangling your feet, hunching your shoulders, or contort your neck when pipetting liquids.

3) Ergonomics

Ensure that your chair or stool is appropriate for the task. Most chairs offer multiple adjustment options to elevate or lower you to the specific height required for the task. Remember that poor ergonomics and poor posture can lead you to developing RSI.

4) Use A Timer

The longer the repetitive activity, the greater the chance of developing an injury. Incorporating a lab timer into your work process will ensure that you provide yourself with the necessary breaks to prevent strain from pipetting, as well as a mental break that will allow you to refocus on the task at hand.

5) Just Say No To Clutter

An organized lab is a happy lab. By organizing your workstation you will reduce clutter, increase lab safety, and improve overall ergonomics. If you organize your workstation properly, you can determine which supplies (pipette tips, buffers, samples) you need on a regular basis and place them accordingly while minimizing awkward postions. I encourage you to check out our post on The 5S Approach To A Lean Lab for more information regarding this topic.

6) Find The Right Pipette

Not all pipettes are created equal. There are many different pipette manufacturers and models available. One major factor to consider when either using your current pipette or selecting a new one is the operational pressure required to operate the pipette. If you have already begun to experience pain while pipetting, you may want to consider a pipette model that requires reduced operating forces. Additionally, you will want to review the weight of the pipette and the ergonomics (finger hook, plunger configuration, tip ejector).Another alternative for those who are already experiencing symptoms of RSI would be to consider an electronic pipette, they may be heavier but require little operating force to aspirate and dispense. After you have selected your pipette or reviewed your existing pipette, make sure that you are using a compatible pipette tip.

Now that we have covered what repetitive strain injury is, the symptoms, how it is caused, and six tips to help you avoid developing repetitive strain injuries while working in your laboratory, you can now be able to get back to pipetting safely.

What To Do If You Think You Have RSI

If you have experienced or develop these symptoms it is recommended that you speak with an occupational health professional at your facility or your physician.

Helpful Video on Pipetting Safety & Ergonomics 

(Video Source: UCLA Environment, Health, & Safety) 

Sources

What Is Repetitive Strain Injury?

Danger: You Might Be Pipetting Yourself Out Of A Job 

Repetitive Strain Injury: The Hidden Lab Hazard

A questionnaire survey of the ergonomic problems associated with pipettes and their usage with specific reference to work-related upper limb disorders.

Hand and shoulder ailments among laboratory technicians using modern plunger-operated pipettes.

Additional Resources

Laboratory Work With Automatic Pipettes: A Study On How Pipetting Affects The Thumb

Evaluating Microorganism Levels On X-Ray Aprons And Lead Wearables: The Science Of ATP Testing

How Have Microorganisms and Bioburden Been Measured?

In the previous blog post regarding X-Ray lead aprons, we explored the history of healthcare associated infections or HAIs, and how transmission risks are posed to patients and staff via contaminated “high touch, non-critical surfaces,” including X-Ray aprons and protective lead wearables.  In laying out the content of this blog, I was reminded of the phrases, “things aren’t always as they appear” and “don’t judge a book by its cover.” Is it possible that newer (clean looking) X-Ray aprons can carry a higher level of biological contamination when tested in comparison to older X-Ray aprons (which are dirty looking & smelling)? It is completely possible and plausible due to the concept of bioburden.

What is Bioburden?

Bioburden is defined in numerous medical dictionaries as the number of microorganisms contaminating an object.  So how does one assess for bioburden?  The gold standard for assessing for bacterial/fungal contamination has been to assess for colony forming units or CFUs.  A CFU equals one viable bacterium that has the ability to spread and replicate.

3 Main Ways to Measure CFUs: 

  1. A scientist could dilute the sample and count the bacteria by microscopic examination or through the use of a cell counter.  However, if bacteria are too small or clump together, then this method is problematic.  This method will yield total bacteria counts, both living and dead.
  2. A scientist could use Optical Density (OD) to estimate the number of viable bacteria in a sample.  This is where the scientist measures how cloudy a liquid culture of bacteria is.  While the bacteria are actively growing the liquid culture should continually become more and more cloudy.  Again, this method will yield total bacteria counts, both living and dead.
  3. A scientist could make serial dilutions of a liquid culture and plate out the bacteria in known dilutions until they can count single colonies and extrapolate back to figure out total CFU in a sample. This method only yields viable bacteria totals.

4 Challenges Associated with Bioburden Assessment

Assessing for bioburden (microorganisms) by calculating CFUs is not as easy or straight forward as one might imagine.

  1. The first challenge posed is that one needs to have a lab in which to grow bacteria, and depending on the bacteria one is dealing with there are different governmental regulations to follow.
  2. The second challenge presented is that of time, one needs to have the time and equipment to properly grow the bacteria/fungus.  Different species of bacteria or fungus grow at different rates, for example, culturing of bacteria on plates can take anywhere from overnight to multiple days.
  3. A third and very important challenge is posed by the bacteria and fungus themselves.  They are similar to people in the fact that not all of them grow and thrive under the same conditions.  In lab work, if only one kind of food source is used, one will only be able to assess for bacteria that grow on that particular food source.
  4. Finally, one needs to have a trained technician who knows how to assess which bacteria to grow under the correct conditions and then also how to properly count the bacteria.

While assessing for CFUs has traditionally been viewed as the gold standard for assessing bioburden, and it is vitally important for various microbial studies, it is not a good way to assess bioburden in real time.  It can be complicated.

What is ATP and How is it Evaluated?

What if there was an easier way to determine surface levels of biological contamination?

What if there was an easier way to assess for a molecule that is found only in living cells, both bacterial and human living cells?

There IS an easier way to evaluate for this molecule in real time (by using a simple swab and handheld reader), and it can be used by any hospital staff member as a surrogate for such complicated CFU work.  Let me introduce you to the molecule known as the “molecular workhorse,” called adenosine triphosphate (ATP).

Adenosine Triphosphate (ATP)

ATP is an energy molecule utilized by cells. It is present in humans, animals, plants and microbial cells.  ATP levels rise as a cell is undergoing apoptosis (programed cell death), but is generally consider to be completely degraded within 30 minutes of cell death (1).  This makes ATP a useful marker for the presence of unwanted biological contamination, including organisms that can cause infection and disease.

Okay – Get to the Point!

An increase in biological cells on a surface results in an increase in the amount of ATP present on that surface, thus making ATP an effective marker for the assessment of the hygienic status of an environmental surface. Simply stated, the amount of ATP present on a testing swab is a quantitative measurement of the cleanliness of the surface tested! In fact, ATP cell viability assays were determined to be the fastest, most sensitive, and least prone to artifacts, partially due to a lack of an incubation period (2).  The sensitivity of laboratory cell based ATP cell viability assays can detect fewer than 10 cells per well (2).  This technology has been modified to create a portable, ATP bioluminescence test, using a swab instead of plated cells.  This now allows for a real time assessment of bioburden on site.  These tests have been used to assess bioburden in many healthcare settings, including the ICU (3).  ATP measuring units, called luminometers, are handheld, user friendly, and display the results in seconds. (It doesn’t take a scientist to use an ATP luminometer!) The read out of an ATP bioluminescence test is not in CFUs, but is in relative light units or RLUs.  In the past, some scientists have questioned the validity of using a bioluminescence test instead of assaying for CFU.

Is There a Correlation Between CFUs & RLUs? 

Like most assessments, ATP bioluminescence assays also have limitations, but they are an excellent surrogate that allows the everyday staff member to assess bioburden in real time.  Those new to ATP bioluminescence testing often inquire about a correlation between CFUs and RLUs.  (Most laboratory microbiologists have the capability to perform CFU testing, and are not confined to real time assessment of bioburden.)  The most controlled way to achieve this is to look at different known amounts of CFUs and assess whether or not the RLUs increase accordingly.  That is exactly what Dr. Sciortino’s group did when they assessed three different portable ATP bioluminescence kits for their ability to detect various CFUs of two different HAI relevant bacteria (Staphylococcus aureus and Acinetobacter baumannii) and one strain of fungus (Candida albicans).

What they discovered was there was a linear relationship between bacterial CFUs and RLUs for all three luminescence kits, and for two of the three kits between fungal CFUs and RLUs (1).  Such research validates that the use of ATP luminometers can be used to assess for bioburden on surfaces in real time.  This research, plus Dr. Jaber’s study, in which 25 lead aprons were cultured for CFUs and showed that 21 were colonized with Tinea species (the family of fungus that causes ringworm) and 21 were colonized with Staphylococcus aureus, of which 3 aprons were colonized with MRSA (4), validates the ATP bioluminescence results for X-ray aprons and protective lead wearables.

In fact, these X-ray aprons and protective lead wearables, which are worn throughout many different areas within a healthcare system, including the operating rooms, cath labs, radiology/imaging areas, emergency rooms and beyond are regularly testing with RLU readings in the THOUSANDS to HUNDREDS OF THOUSANDS (5), which is scary. The bottom line is regardless if you are a classically trained microbiologist used to looking at CFUs or a hospital staffer looking at luminometer readouts in RLUs, when surfaces inside an OR or Cath Lab are testing in the hundreds of thousands range, it is a problem!

Is ATP Testing Growing in Use?

Through utilization of ATP luminometer testing systems, companies like Radiological Care Services (Indianapolis) are able to enter a facility’s Cath Lab, OR or Radiology Department and test lead apron inventories on site, providing real time numbers (bioburden levels) in a matter of seconds. An advocate for ATP luminometer testing, Dr. Sciortino even states, “ATP system monitoring may uncover the need for new disinfectant designs that adequately remove hospital surface biofilms, rendering used hospital equipment to its native state whereby a zero reading by ATP monitoring can be achieved” (1).  If you look back at the first blog post, “Contaminated X-Ray Aprons and The Risk of HAIs”, I positioned that “using wipes alone” was insufficient and through the use of ATP testing, Dr. Sciortino could be inferring a similar position.

Looking Ahead…

In the next blog post, we’ll specifically look at the science/methodology behind the use of sanitizing wipes and we’ll further explore the differences between true “cleaning” and “sanitization.” We’ll later examine what the governing bodies, such as AORN, CDC, HFAP and JCAHO state regarding their expectations of such surfaces within healthcare facilities. Understanding the science behind HAIs, testing for biological contaminants on surfaces, biofilms, and the difference between “cleaning” and “sanitization” will help us understand that current healthcare protocols in regards “non-critical, high touch surfaces” need to be changed in order to better protect hospital patients and staff.

About The Author:

Kathleen R. Jones received her BS from Purdue University (West Lafayette) in Biology specializing in Genetics and Microbiology.   After working for five years in Quality Control she then completed her MS at Purdue University in Indianapolis.  Her growing interest in Infectious Diseases lead her to the Uniformed Services University of the Health Sciences where she obtained a Doctorate in Emerging Infectious Diseases.  Kathleen has a passion for progressive sciences and initiatives, and employs her keen understanding of the biofilm formation and elimination processes into her research and work.

Sources:

  1. Sciortino, C. V. and R. A. Giles.  2012. Validation and comparison of three adenosine triphosphate luminometers for monitoring hospital surface sanitization: A Rosetta Stone for adenosine triphosphate testing.  AJIC.  40 (e233-9)
  2. Riss T.L., R.A. Moravec, A. L. Niles, H.A. Benink, T.J. Worzella, L. Minor. Minor, L, editor.  2013,  Cell Vialblity Assays. In: Sittampalam G.S., N.P. Coussens, H. Nelson, et al., editors. Assay Guidance Manual [Internet]. Bethesda (MD): Eli Lilly & Company and the National Center for Advancing Translational Sciences; 2004-. Available from: //www.ncbi.nlm.nih.gov/books/NBK144065/
  3. Moore, G., D. Smyth, J. Singleton, P. Wilson. 2010. The use of adenosine triphosphate bioluminescence to assess the efficacy of a modified cleaning program implemented within an intensive care setting.  AJIC. 38(8):617-622 DOI: //dx.doi.org/10.1016/j.ajic.2010.02.011
  4. Jaber, M., M. Harvill, E. Qiao.  2014.  Lead aprons worn by interventional radiologists contain pathogenic organisms including MRSA and tinea species.  Journal of Vascular and Interventional Radiology.  25:3:S99-S100.  DOI: //dx.doi.org/10.1016/j.jvir.2013.12.279
  5. “Outcomes: What do your numbers look like?” Radiological Care Services. Nov 20, 2014. //www.radcareservices.com/radiolgical-care-services-outcomes.html

Laser Safety Glasses: The Ugly Truth About Laser Radiation Exposure

Avoiding Eye Damage

In the time that it takes to blink an eye, laser radiation damage to the eye may have already occurred. Unprotected exposure to lasers can result in the development of cataracts or even a corneal burn, which can result in vision loss. If you are working with or around lasers, it is very important to understand the consequences of laser radiation exposure. We have decided to dedicate this post to educating you about laser beams and the safety precautions you should take when working around them.

Laser Beam Exposure

In addition to direct laser beam exposure, there are several other types of dangerous indirect laser beam exposures. Intra beam exposure occurs when the eye or skin is directly exposed to all or a part of the laser beam. It is also important to be careful of specular reflections. This is when the laser beam is reflected off mirror like surfaces. Reflections from flat mirror surfaces can be as harmful as exposure to a direct laser beam. Curved mirror surfaces decrease the intensity of the beam, but there is a larger area for possible laser radiation exposure. Diffuse reflections happen with surfaces that reflect the beam in many directions. Because the beam is reflected in so many directions, this exposure does not have the same power and energy of a direct beam. It is important to keep in mind that diffuse reflections are still harmful.

Protecting Your Eyes

The biggest risk with working around lasers is having any of these types of exposures enter the eye unprotected. In the human body, the eye is the most sensitive to light. When the eye is exposed to a laser beam, the lens in the eye focuses the beam into a tiny spot. This can actually burn the retina of the eye. At different wavelengths, lasers cause several types of eye injuries. Exposure to laser radiation with wavelengths that are less than 400 nanometers and greater than 1400 nanometers result in cataracts and burn injuries. This is because the eye absorbs this level of exposure through the cornea and lens. The most damaging wavelengths are between 400 and 1,400 nanometers, which results in the heating of the retina and can cause retinal burns. The image below shows which parts of the eye absorb the laser rays at different wavelengths.

Determine The Appropriate Protection

Fortunately, wearing laser safety glasses or goggles can protect the eyes from the risks that lasers pose. The U.S Occupational Safety and Health Administration require staff to wear laser safety glasses or goggles when operating or around lasers that are Class 3b and Class 4. Class 3b lasers are lasers that powered from 5 to 500 milliwatts and Class 4 lasers have output powers of more than 500 milliwatts. These laser safety glasses and goggles provide protection from reflected laser light and direct beam exposure. Laser safety eyewear is available for different wavelength ranges and for specific types of lasers. It is recommended that you find out the class of the laser you are working with as well as the appropriate wavelength range to ensure the best possible protection.

We can’t emphasize enough how important it is to protect your eyes and yourself from the harmful effects of laser radiation. Remember, the damage done to the eyes from laser radiation exposure can be permanent!

6 Reasons Why You Should Use These Serological Pipettes

Serological pipettes

Serological pipettes or volumetric transfer pipettes are liquid handling devices used to transfer a desired volume of solution from one receptacle to another container. Globe Scientific is known as a producer of exceptional quality laboratory supplies and their unique UniPlast™ plastic serological pipettes are a perfect example.

1. One-Piece Construction

These pipettes are manufactured from a single piece of polystyrene plastic, which eliminates the weld point that are commonly found in other brands of pipettes. Some pipette manufacturers weld the pipette tip and mouth pieces to the main pipette body, these “weld points” can trap liquid and can cause inaccuracies. The UniPlast™ pipette is constructed of a smooth one-piece, FDA grade polystyrene plastic, which incorporates a seamless design that eliminates the potential for trapped liquids. This unique design provides faster fill and release rates, while also ensuring a complete flow out of the sample and also offers a higher degree of accuracy.

2. Aerosol Barrier Filter (Plug)

The UniPlast serological pipettes utilize an aerosol barrier plug that prevents both fluid and liquid vapors from contaminating the pipettor and sample. Unlike cotton plugs, the aerosol barrier filter, made from bonded polyolefin fiber provides better protection and reduces the chance of over pipetting and the potential contamination of the pipetting device.

3. Ergonomic

The UniPlast Serological pipettes are shorter than most other serological pipette brands. The short, compact reservoir design of these pipettes makes them easier to handle and move throughout the laboratory. You will notice the improved comfort while working in tight spaces and under lab hoods for extended periods of time.

4. Convenient

The specially designed tip is able to accommodate more viscous liquids. The inside diameter of the serological pipette ranges from 1.56mm for the 1 mL up to 4.50mm for the 25 mL pipette. See the table below for more inside dimeters.

Serological Pipette Tip Diameters 

ItemVolume (mL)Tip Outside Diameter (mm)Tip Inside Diameter (mm)
1700/1710/17151 mL2.98mm O.D.1.56mm I.D.
1720/1730/17352 mL2.98mm O.D.1.95mm I.D.
1740/1750/17555 mL3.43mm O.D.2.54mm I.D.
1760/1770/177510 mL3.35mm O.D.2.80mm I.D.
1780/178425 mL5.10mm O.D.4.50mm I.D.

5. Accurate

The UniPlast serological pipette has printed black graduations which prevent ambiguity while measuring the amount of liquid being aspirated or dispensed. This feature guarantees precise readings with less than 2% inaccuracy at full volume. Reverse graduations are available for all five volumes and negative graduations are included on all pipettes with the exception of the 25 mL volume.

6. Color Coded

The UniPlast serological pipette is color coded to meet ASTM E1380 standards.

ASTM E1380

Standard specification for color coding of laboratory pipets with multiple graduations, 0.1 mL and larger, nut excluding disposable prothrombin and disposable micropipets.

Fits All Major Pipettors

Designed to fit all major brands of pipettors these ergonomic serological pipettes offer a smooth one-piece construction for consistent results. These pipettes are manufactured under strict ISO 9001:2008 standards and are calibrated for accuracy. All UniPlast™ serological pipettes are non-pyrogenic, non-cytotoxic and non-hemolytic. Sterilized by gamma irradiation, these pipettes are RNase-free and DNase-free.

25 mL UniPlast Plastic Serological Pipette Demo Video

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The pipettes are available in multiple sizes: 1ml, 2mL, 5mL, 10mL, and 25 mL to handle a wide-range of liquid handling applications.The pipettes come wrapped in peel packs, which are made from polyethylene plastic and medical paper. This design makes them easy to peel apart for quick removal. The UniPlast™ Serological Pipettes will be a welcomed addition to any laboratory looking for consistent and accurate results for transferring milliliter volumes of liquid.

Maximize Your Lab’s Budget With These Pipette Offers

High Quality Pipettes From BrandTech Scientific

BrandTech Scientific has prided itself on providing premium quality liquid handling products. BrandTech’s liquid handling line, includes the Transferpette pipettes, HandyStep repeating pipettes, Dispensette bottletop dispenser, and Titrette bottletop burettes, is distinguished by the accuracy, precision, safety, and ergonomics of the instruments’ designs.

Pipettes

The Transferpette S family of pipettes provides unparalleled comfort and ease-of-use in a central-button pipette. Available in single and multichannel, these pipettes are manufactured using innovative materials that reduce weight, improve corrosion resistance and protect accuracy, even after repeated autoclaving. Pistons in multichannel models are light, dimensionally stable and corrosion resistant.

Reduce RSI Risk

The risk of RSI (repetitive strain injury) is reduced with the short pipetting stroke, operators with smaller hands will notice a substantial difference compared to pipettes with a longer pipetting stroke. The curved finger rest comfortably supports the pipette for a relaxed grip.

True One-Handed Operation

These pipettes only require the use of one hand. Volume can be set and secured with the tip of the thumb – even while wearing gloves. The large separate tip ejector reduces tip ejection forces.

Easy Calibration technology 

The Transferpette pipettes incorporate Easy Calibration technology which ensure fast, easy, in-lab calibration adjustments without tools for ISO/GLP compliance.

Transferpette S Adjustable Volume Single Channel Pipettes

The adjustable volume single channel pipettes are available in nine volumes:

  • 0.1-1 μL
  • 0.1-2.5 μL
  • 0.5-10 μL
  • 2-20 μL
  • 10-100 μL
  • 20-200 μL
  • 100-1000 μL
  • 500-5000 μL (o.5-5mL)
  • 1000-10000 μL (1-10 mL)

Transferpette S Fixed Volume Single Channel Pipettes

The fixed volume single channel pipettes are available in eight volumes:

  • 10 μL
  • 20 μL
  • 25 μL
  • 50 μL
  • 100 μL
  • 200 μL
  • 500 μL
  • 1000 μL

Current Promotion

Buy 3 Transferpette S single channel pipettes, get one free!

 Transferpette S

8-Channel Pipettes

12-Channel Pipettes

The multichannel pipettes are available in five volumes for both the 8 channel and 12 channel:

  • 0.5-10μL 
  • 5-50μL
  • 10-100μL
  • 20-200μL
  • 30-300μL

Current Promotions

Buy 2 Transferpette multichannel pipttes (electronic, classic or S style), get a Transferpette S single channel starter set free!

Buy a Transferpette multichannel pipette (classic, S, or electronic), get 10 boxes of Ultra Low Retention Tips Free!

Transferpette S Single Channel Start Sets

Starter Set available in four volume ranges:

  • Micro: 0.1-1μL, 0.5-10μL, and 10-100μL
  • Mid-Size: 2-20μL, 20-200μL, and 100-1000μL
  • Macro: 100-1000μL, 500-5000μL, and 1000-10000μL 
  • Standard: 0.5μL, 10-100μL, and 100-1000 μL

Pipette Controllers 

BRAND macro pipette controller

A laboratory standard for decades, the macro pipette controller has been completely redesigned for even finer control of all volumetric and serological pipettes from 0.1-200 mL. All of the function of that made this pipette controller a favorite in the lab has been retained – from the “one-size-fits-all” silicone adapter, the reinforced ridge for easy tip wiping, and the sensitive toggle for smooth aspiration and dispensing.

  • Simplifies pipetting
  • Fits most pipettes
  • Improves lab ergonomics
  • Pipettes to Class A tolerances
  • Autoclavable for decontamination and sterile pipetting

The improved macro is comfortable and offers convenient meniscus control. Operation is asa simple as squeezing the suction bellows and adjusting a lever. One squeeze of the bellows powers aspiration and dispensing up to 50 mL. Equipped with a convenient blow-out bulb to empty “to contain” pipettes. The macro is an excellent tool for laboratories with multiple novice users.

Glass and Plastic Compatible 

Compatible with glass and plastic 01 to 200 mL serological, volumetric and graduated pipettes with a maximum suction tube out diameter of 9.2mm, calibrated “to deliver” and “to contain.” The modified mechanism allows for finer control with small volume pipettes.

Ergonomic Design

The macro eliminates the awkward hand positioning associated with rubber pipette bulbs while increasing control of meniscus-level and flow rate. Featuring a relaxed grip design, low weight 125 grams (4 oz.), and low resistance operation to minimize strain from prolonged pipetting, the redesigned macro pipette controller will make a great addition to your lab.

Current Promotion

Buy 2 macros, get two macros free!

BRAND accu-jet pro pipette controller

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The BRAND accu-jet pro pipette controller incorporates comfort and performance features that make it one of the most popular pipette controllers in the market.

Comfort

Contoured for better fit for small and large hands. it is light weight and well balanced for low-fatigue pipetting.

Control

The pressure-sensitive buttons control pipetting speed, plus a motor-speed-limiter control thumbwheel adds extra assurance with pipettes as small as 0.1 mL.

Charge Indicator 

Don’t worry about you pipette controller failing on you in the middle of your work. An LED indicator alerts you when there is approximately 2 hours of charge time remaining. The controller can be operated when charging, providing you even more flexibility.

Advanced Electronics 

The accu-jet pro features a long-life, environmentally friendly Nickel-Metal hydride battery, with a special pulsed-mode charger to eliminate “lazy-battery-effect.” The controller will provide you with approximately 8 hours of continuous pipetting (based on the use of a 10 mL pipette) without recharging, while the LED indicates low battery.

Ergonomic Design

Weighing only 190 grams (6.7 oz.), this light weight pipette controller features a smoothly curved shape to eliminate pressure points to enhance operator comfort.

Corrosion Protection 

A built-in check valve protects against liquid penetration. The unique active vapor exhaust system vents externally to protect internal components.

Current Promotion

Buy 3 accu-jet pro pipette controllers, get one free!

Promotion Details

These BrandTech Scientific promotions are valid when you purchase any of the qualifying items between 1/1/14 and 12/31/14. Follow these 4 steps to save money and stock up your lab.

  1. Purchase qualifying items and amounts (click on the specific product for the promo form)
  2. Check the box of the free item that you would like to receive (certain products may have pricing requirements e.g. equal or lesser value)
  3. Complete the form with your shipping information (please allow for 4-6 weeks for delivery)
  4. Email or fax your proof-of-purchase with a copy of your purchase order or invoice (dated between 1/1/14 and 12/31/14) to BrandTech Scientific, Inc. 860-767-2562 or email to: promotions@brandtech.com with scanned proof-of-purchase.

Please note: Offer is only valid to customers in the United States of America. Not valid for resellers. Void where prohibited by law or company policy. This offer may not be combined with any other offer. Limits may apply. Product appearance, catalog numbers, prices, specifications, and technical information are subject to change without notice. 

The 5S Approach To A Lean Lab

What is Lean?

Lean production (lean) is a popular quality improvement methodology that can be traced back to manufacturing and technology. Lean manufacturing principles can be used to improve efficiency in the laboratory environment. Lean has been adopted by many health care organizations and laboratories to help eliminate waste, organize the workplace, streamline procedures and establish clear, visual standards.

According to a 2007 white paper written by the Mayo Clinic Mayo Medical Laboratories “Innovations in the Clinical Laboratory – An Overview of Lean Principles in the Laboratory,” Lean is a based on eliminating waste and continuous improvement: “This is done while intently concentrating on eliminating redundant motion, recognizing waste, and identifying what creates value from the client’s perspective. Lean is a continuous process improvement initiative and not an end destination.”

What is 5S Lean?

The disciplined approach of the lean methodology provides many benefits:

  • Reduces waste/clutter
  • Creates a culture of responsibility
  • Increased lab safety
  • Enhance employee morale and involvement
  • Organization
  • Cleanliness
  • Space savings
  • Increases inventory control
  • More consistent experiments
  • Increases productivity
  • Faster onboarding of new employees
  • Timely delivery of supplies

Simply put, 5S Lean is an enabler of waste-free production that supports an operating philosophy that emphasizes discipline, efficiency, and attention to detail. In the modern lab, where many labs have faced reduced budgets and fewer staff members, adopting the lean methodology can result in a more cost-effective and safer way to manage processes. Applying the 5S lean methodology in the laboratory environment will improve efficiencies and lab safety for current and future employees.

What are the 5 S’s?

There are five phases of the 5S Lean methodology, you may be familiar with the Japanese names, here are the five phases translated into English. It is important to note that you will want to establish a baseline for the target work areas before you begin the implementation process. This way you are able to document your baseline “before” condition with pictures and a description of the original work area configuration to use as a comparison during future audits.

  • Sort
  • Set in Order
  • Shine
  • Standardize
  • Sustain

Sort (Seri) is based on removing unnecessary items and disposing of them properly. Work is made easier by eliminating obstacles and you will reduce the chance of being disturbed by unnecessary items in the lab. This phase will also help prevent the accumulation of unnecessary items and it will also assist in the evaluation of necessary items with regard to debt, cost, and other important factors.

Key steps

  • Establish a holding area for items (e.g. red tag area)
  • Identify items not required at the current location
  • Organize team members to evaluate items in the holding area
  • Dispose of items with team approval

Set in Order (Seiton) is where you arrange all necessary items in order so they can be easily picked up for use. This phase focuses on preventing loss and wasting time, making it easy to find and identify the necessary tools, equipment, and supplies. You will want to identify sources of waste and rearrange items.

Key Steps

  • Identify necessary tools, equipment, and supplies
  • Determine location for necessary items
    • Item location considerations (pipettes will be used daily)
      • Daily use (lab bench) e.g. Pipettes
      • Weekly use (common storage area) e.g. buffer solutions
      • Monthly use (remote storage area) e.g. highly specialized lab items
  • Designate and outline permanent locations for items
    • How to set in order
      • Define the major processes performed
      • For each process, draw a map of the locations of each activity
      • Identify sources of waste and develop corrective measures
      • Position items where they are needed based on frequency
  • Organization of supplies
    • Determine address system with part number and address
    • Label container with part number
    • Note minimum and maximum quantity if appropriate
      • Inventory bins and shelves (holding product)
        • 2 bin system (2 bins for each product and once 1 bin is empty you will want to refill the bin)
        • Min/Max (max red line and minimum green line)
      • Relocating laboratory equipment such as digital dry baths, mini water baths, microscopes that are located throughout the laboratory into a more convenient location that is within reach and an open workspace.

Shine (Seiso) or clean is an important phase, especially while working in the laboratory environment. By thoroughly cleaning your work areas in the laboratory, you use cleaning as a means of inspection, you can keep your lab area safe from hazards and clutter which can result in inefficiencies. Getting in the habit of cleaning and inspecting your laboratory work space you will be able to identify leaks, spills, potential contamination, or any other minor problems that could turn into larger problems down the road.

Key Steps

  • Clean thoroughly – really make it shine!
  • Clean and inspect lab work areas daily to identify any potential issues or problems

Standardize (Seiketsu) phase is focused on maintaining order and adhering to a set standard. This is where you or your team will develop standard operating procedures (SOPs) which help in the in the on-boarding of new employees, saves time for routine tasks and improves overall efficiency. You will also want to document equipment and processes while developing an audit schedule and assigning specific tasks to individuals. Establishing a methodology to ensure a consistent strategy for successful 5S implementation is an important consideration and will impact the overall effectiveness of the initiative.

Key Steps

  • Develop SOPs (standard operating procedures) Helpful for new employees, saves time and improves efficiency
  • Document equipment and processes
  • Develop and audit schedule and assign tasks to individuals
  • Establish a methodology to ensure consistent strategy for 5S implementation
    • 5S taping standard
      • MIcroscope room (blue and yellow tape)
      • Standardize a bench (each bench has a standard layout)
        • Storage area for chemicals and solutions
          • Pipettes, sharps containers and tips
          • Biological cabinet (no tape) post a picture instead

Sustain (Shitsuke) is the most challenging and difficult stage for most organizations. Although this may be the most trying of phases, it is also the one with the largest payoff. You will want to regularly communicate and train employees to adopt the 5S methodology and adhere to the 5 phases to keep your lab running smoothly and efficiently. This portion of the 5S will have the highest level of variability since every lab and organization is different. It is important to define your measures of performance (MOPs) early, doing so will allow you to begin tracking your results immediately.

Key Takeaways

  1. Sort, separate what is unnecessary
  2. Set in Order, organize
  3. Shine, clean up
  4. Standardize, establish standard operating procedures
  5. Sustain, develop long-lasting habits

“The main objective of Lean, when applied in the laboratory, is to deliver quality patient laboratory results, at the lowest cost, within the shortest time frame while maintaining client satisfaction.” -Mayo Clinic Mayo Medical Laboratories

The Lean methodology is an extremely powerful tool when used properly. Every organization is different and this methodology will have to be adapted to your organizations unique needs and requirements. Remember, driving lean improvements can seem challenging at times, but when you utilize the proper tools, approach, and support, you can make a difference in your organization.

References

Amirahmadi, Fazi, Al Dalbello, Dan Gronseth, and Jean McCarthy. “Innovations in the Clinical Laboratory: An Overview of Lean Principles in the Laboratory.” (2007): 2. Mayo Medical Laboratories. Aug. 2007. Web. 28 Oct. 2009.

Ball, Dr. David [Virginia Bioinformatics Institute at Virginia Tech]. (2014, July 24). 5S Organization in the Peccoud Lab Retrived from https://www.youtube.com/watch?v=K_gmFiXgFY

Hirano, Hiroyuki (1995). 5 Pillars of the Visual Workplace. Cambridge, MA: Productivity Press. ISBN 978-1-56327-047-5.

3 Different Types of Serological Pipettes

Serological Pipettes

The serological pipette is commonly found and used in most laboratories for transferring milliliter volumes of liquid ranging from 1 milliliter to 50 milliliter. Pipettes are available in plastic or glass, for the purpose of this post we will be focusing on single-use, polystyrene plastic serological pipettes. We will be reviewing three types of serological pipettes, each type of pipette is designed for specific applications.

Open-End Pipettes

The Open-end pipettes are specially designed pipettes that feature an open-end for use with high viscosity liquids. The open-end design allows the pipettes to aspirate and dispense viscous liquids quickly and easily. Therefore, the fast fill and release rates make these pipettes well suited for use with oils, cosmetics, paint, sludge, food and cell culture applications. These open-ended pipettes are constructed of polystyrene plastic and provide a safer alternative to glass pipettes.

Liquid vapor and fluid contamination to the pipettor and sample is significantly reduced with fiber filter plug located at the end of the pipette tip. These non-pyrogenic pipettes are sterilized by gamma irradiation and come individually wrapped in thermoformed paper/plastic peel packaging. The pipettes are available in 1 mL, 2 mL, 5 mL, and 10 mL sizes. Color coded to meet industry standard ASTM E1380 for easy identification these open-end pipettes are an excellent choice for efficient liquid handling.

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Bacteriological Pipettes

Used primarily in the examination of dairy products, milk or bacteriological pipettes are designed for use in the dairy field and meet the American Public Health Association (A.P.H.A) standard for the Examination of Dairy Products. These polystyrene milk pipettes are available in 1.1 mL and 2.2 mL sizes.

These sterile,non-pyrogenic, single-use bacteriological pipettes are sterilized by gamma irradiation and come individually wrapped in thermoformed paper/plastic peel packaging. These pipettes utilize a fiber filter that helps prevent fluid and liquid vapor contamination of samples and the pipette’s internal mechanism. This pipette is calibrated to deliver (TD) at +/- 2% and meets ASTM E934 standards.

Aspirating Pipettes

Unlike open-end and bacteriological pipettes, aspirating pipettes are completely transparent and do not have gradations. Designed for the transfer and mixing of liquids, they are used in a wide variety of applications, such as vacuum or pipettor aspiration procedures. These single-use, non-pyrogenic, non-plugged polystyrene pipettes are a safer alternative to glass Pasteur pipettes.

These aspirating pipettes come individually wrapped in thermoformed plastic/paper peel to protect against contamination. Sterilized by gamma irradiation, these pipettes have a sterility assurance level (SAL) of 10-6 .

Serological Pipettes: A Useful Tool For Transferring Solutions

Now that we have reviewed the three different types of serological pipettes available, you should have a better understanding of the unique capabilities of each type of pipette. For added flexibility and convenience, different sizes of pipettes can be used with the same pipette controller for a variety of experimental assays.

By following proper pipetting techniques while aspirating or dispensing liquids, serological pipettes can be useful tools for transferring milliliter volumes of solutions in your lab.

3 Safer Alternatives To Mouth Pipetting

Pipette controllers or fillers are used to draw liquid into a serological pipette. There are three different types of pipette controllers, ranging from simple rubberized bulbs to the more sophisticated motorized microprocessor controlled pipette fillers. These near ubiquitous liquid handling instruments may seem banal to some, but prior to the 1970’s, pipette controllers did not exist. However, laboratories did have pipettes and the need to transfer liquid from one container to another.

Before The Pipette Controller: How did they do it?

Mouth pipetting. Yes, mouth pipetting. If you’re not familiar with the term, fear not, a brief explanation is in order. If you have used one of the three types of pipette controllers, you are aware that the bulb or motorized controller draws the liquid into the pipette. When one is mouth pipetting they draw the liquid into the pipette using suction created by their mouth. Think about the types of toxic and corrosive substances, researchers and scientists exposed themselves to when they would use the mouth pipetting technique. There is a great article on the Discover blog that goes into more details if you are interested in learning more about the dangers of mouth pipetting. This technique has been banned in all laboratories because of its associated health risks.

Simple Yet Effective The simplest type of pipette controller is of the rubberized bulb variety. The rubber pipette filler is designed for an efficient one-handed operation. Many of these fillers come with three valves so that you can control air evacuation, liquid uptake, and liquid dispensing quickly and easily. There are also two valved pipette fillers that release through an automatic valve. Although there are some slight differences in pipette fillers vary by the manufacturer the overall principle is the same.

Simple Pipetting Aids

Hybrid Pipette Controllers Blending the simplicity of the bulb styled pipette-aid with the ergonomic styling of a manual pipette controller, these unique pipette controllers will allow for even finer control of volumetric and serological pipettes.

Lightweight and Easy To Use

The RF1000 Pipette Controller from Heathrow Scientific is uniquely designed for one-hand operation. The replaceable and autoclavable tapered silicon pipette adapter allows for a large range of pipette sizes ranging from 1 to 50 milliliters. The intuitive design allows for simple and easy liquid transfer throughout your laboratory, squeeze the main bulb and push the toggle forward to aspirate or back to dispense. Expel any remaining liquid by pushing the blowout bulb conveniently located above the toggle for one-handed operation. This versatile pipette controller is compatible with common, readily available replacement filters, which helps reduce the cost of ownership over time. Storage is a breeze with the magnetic wall mount that will help prevent damage and contamination to your pipette controller.

Simplifies Pipetting

The macro pipette controller from BrandTech Scientific has been a laboratory standard for decades, the newest version has been completely redesigned for enhanced precision and control of all volumetric and serological pipettes from 0.1-200 milliliters. The features that made the macro pipette controller so popular in the lab, including the “one-size-fits-all” silicone adapter, the reinforced ridge for easy tip wiping, and the sensitive toggle for smooth aspiration and dispensing, have all been retained in the new version. The ease of use makes this pipette controller an excellent tool for laboratories with multiple and novice users. The macro eliminates the awkward hand positioning associated with rubber pipette bulbs while increasing control of meniscus-level and flow rate. This pipette controller is lightweight and features a relaxed grip design and low-resistance operation which minimizes strain from prolonged pipetting.

Increase Efficiency with Motorized Pipette Controllers

Quickly and easily transfer liquids throughout your lab with the push of a button. These pipette controllers have improved liquid transport dramatically from the days of the unsafe practice of mouth pipetting. These innovative automatic pipettors provide rapid, yet sensitive aspiration and dispensing.

The New Standard In Pipette Controllers

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BRAND accu-jet pro

The BRAND accu-jet pro pipette incorporates comfort and performance features that make it one of the most popular pipette controllers on the market. The well balanced and lightweight, accu-jet pro is contoured to accommodate both small and large hands. The ergonomic design eliminates pressure points and provides low-fatigue pipetting operation. The pressure-sensitive buttons control pipetting speeds and the motor-speed-limiter improves accuracy when working with small volume pipettes. The accu-jet offers advanced electronic features including an LED battery indicator, a long-life, environmentally friendly Nickel-Metal hydride battery, speed limiter, and two delivery modes. The dual-mode charger provides a quick charging in only four hours, after the full charge is complete, the charger switches to a pulsed mode to extend battery performance and life. The battery is easily accessible and the controller comes with two different style covers depending on your preferred storage method, benchtop or wall mounted. The charging socket is conveniently located on the bottom of the grip allowing you to pipette and charge simultaneously.  The accu-jet comes in four different color accents for personal preference or color-coding of laboratory application.

Packed With Features For Comfort And Accurate Pipetting

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Heathrow Scientific RF3000

The RF3000 from Heathrow Scientific has a powerful, microprocessor controlled pump with adjustable valves that provides accurate and dependable aspiration and dispensing of liquids. The universal grip and soft coated triggers are perfect for both right and left handed users. The well balanced controller offers users a comfortable experience when working with a loaded pipette. The UV resistant housing extends the life of the controller when exposed to UV sterilization. The RF3000 comes with five autoclavable nose cones including one small pipette adapter, and three replacement 045 microliter filters for added versatility. Filters are readily available, so you are not tied into a pipette specific brand which will help reduce the overall cost of ownership. The small pipette adapter can be fitted to the nose cone to stabilize small volume and thinner pipettes. The controller includes a long-life Li-Ion Battery, with a quick charge feature that provides up to 20 hours of continuous use. Bright LED’s indicate three operational modes, high, low, and gravity, which are activated by repeatedly pressing a large mode button that is in easy reach of your thumb when in use. The RF3000 comes with a magnetic wall mount and a benchtop charging station, making this pipette controller a welcomed addition to your laboratory.

Portable Pipette Controller

The Diamond SeroLogic portable pipette controller is a rechargeable electronic pipetting aid designed for use with glass or serological pipettes ranging from 0.1 to 100 milliliter. The lightweight and ergonomic design provides you with effortless pipetting even during extensive use. The powerful 3-speed motor controlled with soft-grip buttons provides you with up to eight hours of continuous use. The conveniently located speed control switch allows you to operate the controller with one hand. The SeroLogic pipette controller offers a low battery indicator and comes with two 1000mAH NiMH rechargeable batteries and an intelligent battery charger that protects against overcharging, overheating and short circuiting. A safety valve and replaceable membrane filter provide double protection against fluid and aerosol contamination. The Diamond SeroLogic portable pipette controller includes a desktop stand for bench top mounting and a wall mounting bracket for added flexibility.

3 Much Safer Alternatives

Now that we have reviewed several safer alternatives to mouth pipetting, you should feel confident in selecting your next pipette filler/controller for your laboratory. Each type of pipette controller has specific benefits and features that you will want to carefully consider before making your decision. We have produced several product demo videos to help you understand the different benefits offered by each type of controller. We hope this guide was informative and helpful during your selection process, we’d like your feedback. If you have any questions or comments, please feel free to reach out to us on social media or simply leave a comment below.

4 Unique Ways To Safely Store Your Pipettes

Pipettes are designed to efficiently deliver a small measured fixed volume of liquid into a receptacle. Proper handling and storage techniques are important to maintain accurate readings and maximize their longevity. Liquid handling equipment must be stored correctly to prevent inaccuracies and produce accurate outcomes.

Pipettes are precise laboratory instruments and need to be properly cared during and after each use. It is recommended that you visually inspect your pipette for damage on a daily basis to avoid undesirable outcomes. For example, damage to the nose cone (where the tip is fitted) could result in a poor seal to the pipette tip, which will reduce accuracy and it is unlikely to be fit for the job you need it for.

Pipette Storage Tips

Once you have finished pipetting you will want to ensure that you store your pipette vertically using a pipette holder, stand or workstation. Following these simple steps will prevent any liquids from seeping into the barrel of the pipette and causing damage by corroding the barrel or shaft. Never put your pipette on it’s side with liquid in the tip, this can cause the same issue with corrosion and can be avoided by properly storing your pipette.

Although it is recommended that pipettes are serviced and calibrated at least once a year, taking a few minutes each day to make sure the pipettor is stored properly will save you the time and expense of having to send the pipettor off for maintenance more frequently. Remember that good routine maintenance and care helps prevent costly repairs.

Pipette Storage Options

There are a number of storage options for your pipettes depending on your laboratory and workstation configuration. Safely storing your pipettes when not in use is important, but you also want to make sure that you can access them quickly and easily as well. Listed below are four different style pipette storage options that can enhance your labs changing needs.

  1. The Flip & Grip Pipette Holder is a unique pipette holder that gives you the option of using it on your bench top, or as a hanging under shelf holder to help maximize your working space available. This pipette holder can hold up to 12 single channel pipettes, or a combination of 3 single channel and 3 multichannel pipettes. The unique rubber grips prevent scratching and is compatible with most common pipette brands. The holder rotates for quick and easy pipette selection and storage.
  2. The Clamp-Ette Pipette Holders makes pipette storage quick and easy. These pipette holders are available in single and triple formats and are compatible with most major pipette brands. The Clamp-Ette secures to tabletops, benches, and shelves with a simple twist of the fingertips, creating an instant pipette holding point within your laboratory. This unique autoclavable pipette holder is available in blue, red, and purple to match your lab and personality.
  3. The Pipette Workstation is the perfect solution for organizing your pipettes and pipette tips in one convenient location. The acrylic rack is opaque on the sides but has clear front and bin lids for easy pipette tip identification. This workstation will hold up to four pipettes and included two dust-free storage bins for different sized tips. The oversized lip on the lid provides easy access even wearing gloves. Organize your pipette and tips in one convenient location in your workstation.
  4. The pipette stands are available in several sizes, materials, and color options. These classic 3, 4, and 6-place pipette stands are designed to hold most major pipette brands. The 6-place pipette stand is available in clear acrylic, blue fluorescent acrylic, and dark blue ABS plastic for increased durability. The 3 and 4-place pipette stands come in clear acrylic for enhanced visibility and easy identification.

Protect Your Investment

There are a variety of pipette storage options available that can adapt to your labs changing needs. Your pipettes are precise liquid handling instruments and should be treated and stored with care to protect your investment and continue producing accurate results. Selecting the proper storage rack or stand will ensure that your pipettes are safe and organized, reducing clutter in your laboratory and improving your efficiency.

Heathrow Scientific Pearl Pipettes Adjustable Volume

Precision Liquid Handling

The Pearl Pipette is an air displacement pipette that is made from temperature and chemical resistant materials including polypropylene and stainless steel. The pipette is equipped with a tip ejector to easily remove the used tip during operation.

Air Displacement Pipettes

Commonly used in biology and biochemistry, air displacement pipettes are piston-driven micropipettes, which are tools used to handle volumes of liquid in the microliter scale. Micropipettes are the most accurate and  precise pipettes.

Digital Volume Meter

The Pearl Pipette is equipped with a digital volume meter which is used to display the volume. The plunger button is color coded and the maximum volume for the pipette is shown on the top of the plunger button.

Brightly Color Coded And Labeled With Volume Range 

(both top and side for quick visual confirmation)

The Pearl Pipettes Adjustable Volume Micropipettes provide you with a complete range of single channel and eight-channel pipette volumes to meet all of your liquid handling needs.

Pipette DescriptionColorProduct CodeNumber of ChannelsVolume Range
Pearl Adjustable Micro PipettorGreenHS120097Single0.1-2µL
Pearl Adjustable Micro PipettorLight BlueHS120098Single0.5-10µL
Pearl Adjustable Micro PipettorDark BlueHS120101Single10-100µL
Pearl Adjustable Micro PipettorCyanHS120104Single100-1000µL
Pearl Adjustable Micro PipettorRedHS120106Single1000-10000µL
Pearl Adjustable Micro PipettorLight PurpleHS120099Single2-20µL
Pearl Adjustable Micro PipettorYellowHS120102 Single20-200µL
Pearl Adjustable Micro PipettorPurpleHS120103Single30-300µL
Pearl Adjustable Micro PipettorOrange HS120100Single5-50µL
Pearl Adjustable Micro PipettorPinkHS120105Single500-5000µL
Pearl Adjustable Micro PipettorOrangeHS120215Eight5-50µL
Pearl Adjustable Micro PipettorPurpleHS120216 Eight30-300µL

 

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Unique Features 

  • Precision metal components for both shaft and barrel ensure reliable performance and long life
  • Slight downward slant to tip ejector button reduces hand fatigue, incidence of repetitive strain injury (RSI)
  • Volume adjustment and low-force dispensing for all-in-one button convenience
  • Ergonomically designed finger hook
  • Isolated volume locking ring prevents accidental volume changes
  • 3-position volume display
  • Each unit is brightly color coded

Sleek Ergonomic Design Helps Reduce Fatigue

The Pearl Pipettes Adjustable Volume micropipettes are available in a complete range of single and eight channel volumes to cover all of your liquid handling needs. With the sleek ergonomic design and low-force dispensing plunger you will notice reduced hand fatigue after a day of pipetting in the laboratory. Requiring 2/3rd the operating pressure of most standard pipettes, the Pearl Pipettes help reduce the incidence of repetitive strain injury (RSI).

Reliable Performance

The Pearl Pipettes are tested in accordance with manufacturing standards and a calibration certificate is supplied with all pipettes. Manufactured in accordance with ISO9001 and Good Laboratory Practice (GLP) regulations. The internal metal parts provide increased accuracy and calibration stability. Volume adjustment is quick and easy with the simple twist of the plunger. Accidental volume changes are virtually eliminated with the isolated volume locking ring.

Whether you are dispensing or aspirating microliters or millileters, the Pearl Pipettes offer you precision at your finger tips.