Everything You Wanted To Know About Pipette Tips And More!

It is hard to believe that simple, plastic molded disposable tips are the bread and butter of molecular biology, chemistry and the world of medicine. That’s right, we are talking about pipette tips. These tips create a dependable and accurate pipetting system. Pipette tips come in three different types including non-sterile, pre-sterilized and filtered tips.

The most commonly used type of pipette tip is non-sterile tips. They are often used in laboratory applications where sterility is not important to the experiment or test being performed. On the other hand, pre-sterilized pipette tips are designed to prevent contamination. They are certified free of DNA, RNase, ATP and pyrogens. Because these pipette tips are certified free of DNA, RNase, ATP and pyrogens, they are ideal for applications that require sterility such as cell cultures.

Filtered pipette tips are designed to prevent aerosols from forming. Aerosols are small liquid or solid particles that are airborne. These particles can actually remain airborne for long periods of time and can be inhaled. Even worse, 65% of all laboratory infections are caused by aerosols, usually by inhaling them. Filtered pipette tips help to reduce the risk of aerosols forming in the laboratory. They also protect the pipette shafts from contamination and reduce the risk of cross contamination. These pipette tips are often used in contamination sensitive applications such as forensics and clinical diagnostics.

With the possibility of infection from aerosols, we can’t emphasize enough how important it is to enforce safe work practices in the laboratory. This includes properly disinfecting pipettes after use and disposing of pipette tips.

 

The Top 3 Factors To Consider When Selecting Laser Safety Glasses

With the significant damage lasers can cause to the eye, making sure you are wearing the proper laser safety glasses is critical. We have outlined three important factors that will help you determine which pair of laser safety glasses is ideal for you.

Frequency of the Laser

The first and most important consideration you need to make is finding out the frequency of the laser you are using. You can find this information in the laser’s instruction manual or on the serial plate of the laser. If the frequency of the laser can’t be found in either of these locations, you can always ask your laser safety officer. The frequency of the laser, also known as the wavelength of the laser, should be listed in nanometers. This information will help you to select the correct lens that will protect your eyes from the wavelength of your laser.

Optical Density

After determining the frequency of the laser, you should also find the recommended optical density of the laser. This information should be listed in the owner’s manual or technical instructions. Optical density measures how much the lens of the laser safety glasses blocks the light that is transmitted from a particular wavelength.

The higher the optical density, the more light from the wavelength is blocked. For example, laser safety glasses with an optical density of 7 will block all but .00001% of the laser frequency. When working with medical devices, most medical facilities recommend laser safety glasses with an optical density of 5 or more. It is perfectly acceptable to select laser safety glasses with a higher optical density than the owner’s manual of the laser requires. This will provide you with a greater level of protection.

Visible Light Transmission

One of the drawbacks of a high optical density lens is the decrease in visibility. Laser safety glasses with high optical densities tend to have darker lenses which can make it difficult to see in the laboratory. In order to avoid compromising a high optical density with decreased visibility, several companies have developed a lens that is clear, but still provides a high optical density.

We help to simplify the process of selecting a pair of laser safety glasses by listing the wavelength of the laser safety glasses cover, the optical density and the visible light transmission of each of the laser safety glasses.

Remember, if you have any doubt about which laser safety glasses you should use, you should ask your laser safety officer.

 


Check Out BrandTech’s Products On Our Website

Good news! We have been busy at work continuing to expand the product lines we offer on our website. We are happy to announce that we are now a distributor of BrandTech’s products!

BrandTech is a manufacturer of liquid handling products and life science plastics. Some of the products BrandTech manufactures include pipettes, pipette tips and plastic labware. They are also dedicated to providing their customers with high quality products with excellent value. The large number of products BrandTech offers will allow us to add more selection in some of our product categories, especially in pipette tips and pipettes. We will also be adding new product categories to our site as well.

We are currently in the process of adding BrandTech’s extensive product lines to our website. We plan to have all of the product lines on the website as soon as possible. Make sure to keep checking our website for BrandTech product updates!

What You Didn’t Know About Dry Baths

How much do you know about the recent changes that have been made to dry baths? There have actually been some major changes over the past few years. The biggest transition in the dry bath market is the move from analog dry baths to digital dry baths.

Before the introduction of digital dry baths, laboratories relied on analog dry baths, also known as incubators or block heaters. These machines allowed users to heat their samples, but it was difficult to control the temperature of their samples. The temperature of the incubators was controlled by incremental knobs that the user could turn to change the temperature. This system made it very difficult to determine the actual temperature of the sample. It was necessary to use a thermometer in order to get an accurate temperature reading.

Luckily, the introduction of digital dry baths has removed the headache many users experienced with analog dry baths. Digital dry baths incorporate a microchip that provides the user with the ability to accurately control the temperature of the bath. These baths also have a digital screen that displays the temperature. The temperature can be adjusted by pressing the up and down buttons. Some of the baths use a knob to adjust the temperature.

But wait, there is more! In addition to transitioning to digital dry baths, there has been an increase in demand for smaller, lighter and more compact baths. This has resulted in a big shift towards manufacturers creating smaller and smaller laboratory equipment. Did you know that the tiniest digital dry bath weighs 3 lbs and can fit into the palm of your hand? The MyBlock Mini, manufactured by Benchmark Scientific is actually the smallest block dry bath in the world.

Another exciting development in the laboratory bath market is the introduction of baths that are able to cool and heat samples. These baths have a cooling capacity of about -20 degrees Celsius. This type of bath is often used in microbiology applications where it is important to keep the molecular structures of the samples the same.

In molecular biology, biochemistry, genetics and cell biology, many researchers encounter the issue of needing to agitate samples while they are being heated. In the past, many researchers had to remove a sample from the dry bath, agitate it, and place it back in the bath. This unexpected change in temperature can damage the sample. In order to prevent damaging the sample, many companies have begun to manufacture lab baths that can heat and agitate at the same time. Some of these baths also have the ability to cool samples in addition to heating and agitating them.

What do you think of our post on dry baths?

 

Autoclaves: The Questions You Want Answered

Did you know that autoclaves play an important role in preventing the spread of viruses and bacteria? Autoclaves make this possible by sterilizing equipment and supplies. They sterilize equipment by applying a high pressure steam to the equipment. This type of sterilization equipment is used across several different industries including microbiology and medicine. For example, autoclaves are heavily used in hospitals, especially by surgeons. Surgical tools such as forceps and scalpels are used during surgical procedures and need to be sterilized frequently. Autoclaves simplify the sterilization process for surgeons and help to ensure that all of the surgical tools are completely sterilized.

So what should you know about autoclaves? We have come up with several popular questions that are often asked and provided you with the answers.

1. What should I set the autoclave’s temperature and time to for sterilization?

The standard time and temperature is usually 121 degrees Celsius and for 15 to 20 minutes. The time and temperature can vary depending on the size and content of the load. It may be necessary to consult with the autoclave’s manufacturer on these settings.

2. What types of autoclaves are there?

Autoclaves are broken down into bench top and floor models. Bench top autoclaves are ideal for laboratories that are short on space. Although, the bench top models are unable to handle the capacity that the floor models offer. Floor model autoclaves are free standing and are either loaded from the top or the front of the machine.

3. Are there any considerations I should think about before purchasing an autoclave?

The short answer is yes. The long answer is that you should think about application and floor space. You need to think about what you are going to be using the autoclave for. Autoclaves come in different sizes and have a variety of capacities. So, if you are planning on sterilizing a large volume of equipment daily, you may want to look at purchasing a floor model autoclave because of their larger capacity over a bench top model.

Space is also an important factor. If you have the space, a floor model may be the best for you. With the floor models, you should also think about whether it is more beneficial to have a front loading or a top loading machine. If you often sterilize heavy flasks or equipment, having a top loading machine may make it difficult to easily load and unload equipment. On the other hand, front loaders tend to take up more floor space since the autoclave’s door opens outwards.

And always remember that you want to make sure you do not place too much equipment in the autoclave at one time. This could result in some of the equipment not being completely sterilized.

The Secret Behind Centrifuge Accidents and Prevention

Unfortunately, centrifuge explosions occur frequently in laboratories. These can be disastrous. One of Cornell University’s laboratories was seriously damaged after a centrifuge accident. The windows of the laboratory were shattered, the ceilings and walls damaged, and the ultracentrifuge was destroyed. Even worse, this type of an incident could have been prevented. The cause of the Cornell centrifuge incident was due to the failure of one of the rotors.

The amount of mechanical stress that is placed on a centrifuge’s rotors results in corrosion of the rotor over time. Damaged and corroded rotors can easily result in a centrifuge explosion. These rotors need to be well maintained and should not be operated past the rotor’s scheduled life span. Read more about the Cornell incident here.

We have developed a list of 3 easy ways to improve safety around the operation of centrifuges. First of all, make sure that everyone in your laboratory knows how to properly select which centrifuge to use as well as how to load and balance the centrifuge. It is not uncommon for centrifuge accidents to be caused by unbalanced samples or improperly loaded. Always make sure that are trained operators available to help train and supervise new operators. Many manufacturers also offer orientation programs for new operators.

Routine maintenance is essential to preventing accidents. The rotors of the centrifuge need to be constantly inspected for damage or signs of corrosion. They should also be cleaned after each use. You should also know the life span of the rotor. It is also helpful to have the manufacturer’s operating manual easily accessible to ensure that their usage guidelines are followed.

And finally, we can’t emphasize enough the importance of keeping a usage log for each centrifuge. The usage log should include the type of rotor used, the speed of the operation and the length of time the rotor was used for. This log will also help you to determine when the centrifuge rotor should be removed and replaced with a new one.

Always remember that an educated, well-prepared laboratory staff will help to prevent the costly and potentially life threatening consequences of centrifuge explosions.

 

 

 

The Nitty Gritty On Centrifuges

Application. Functionality. Size. These three factors are critical in determining which centrifuge is right for you. You’re probably wondering: what is a centrifuge? Centrifuges are machines that apply a centrifugal force (a force that pushes outwards on an object moving around the center) to a container which causes the container to spin rapidly. Typically if you are looking for a machine that has the ability to separate liquids of different densities or a liquid from a solid, a centrifuge is ideal for those applications.

Centrifuges come in 5 different types varying in size, speed and what they are commonly used for. The most basic and smallest model is the mini centrifuge. They are also referred to as a spin-down centrifuge. Mini centrifuges are table top units. They are so light that they can be held with just one hand. Mini centrifuges are able to hold tubes between .2 to 2.0 milliliters. This model can spin up to 6,000 rpm.  Mini centrifuges are often used in environmental and clinical science for the basic separation of samples.

Similar to mini centrifuges, clinical centrifuges are also compact table top units and spin at low speeds of 6,000 rpm. The main difference between these two types of centrifuges is the clinical centrifuges are designed to hold the tubes horizontally instead of vertically. This design allows for better separation of the samples. Some of the clinical centrifuges also have the feature of a swing out rotor. This means that model has mobile tube holders that hold the tubes vertically when the rotor is not in use. When the rotor is in motion, the tube holders move the tubes into the horizontal position. The swing out rotor is used for blood samples because the capacity of the tube holders is between 5 to 15 milliliters instead of .2 to 2 milliliters. Clinical centrifuges can often be found in hospitals and diagnostic labs. 

For many types of molecular biology and biochemistry applications, microcentrifuges are often used. These centrifuges offer the ability to adjust the rpms and have time settings. The maximum speed for these models is 60,000 rpm. Microcentrifuges are also able to fit tubes between .2 and 2 milliliters.

The larger version of the microcentrifuge is called the bench top centrifuge. With these models, it is important to take into consideration how much space you have available. They tend to be bulky and take up a lot of bench space. The speed settings and time can be adjusted for these centrifuges. They also are able to reach a speed of 100,000 rpm.

The most impressive type of centrifuge is the ultracentrifuge. They have the ability to spin up to speeds of 1,000,000 times the force of the earth’s gravity! These models are large in size and are stand alone units. Ultracentrifuges are about the size of a washing machine. There are two categories of ultracentrifuges, they include analytical and preparative. Analytical ultracentrifuges come with fixed rotors and an optical detection system that can analyze samples as they spin. Their ability to analyze samples as they spin makes them great for sedimentation studies in the environmental and chemical fields. Preparative ultracentrifuges come with swing out rotors which makes them perfect for gradient separation applications in biology and biochemistry.

What do you think about our post on centrifuges?

 

 

Improve Your Lab’s Safety With Test Tube Racks

Untidy laboratories are not only a headache for the employees, but they can be a safety hazard. Unfortunately, messy laboratory work spaces are one of the factors that contribute to the 10,000 accidents that occur every year. Luckily, there is an easy and relatively inexpensive solution to this problem. Organization within the laboratory is key to not only safety, but it also saves time and creates an efficient work place.

One of the best organizational tools available for laboratories is test tube racks. Test tube holders are an easy way to organize test tubes and prevent the test tubes from falling and breaking. These containers also provide a safe way for you to store test tubes, especially when they are being used for on going experiments. For laboratories that run multiple experiments and use lots of test tubes, test tube holders help cut down on the chaos and mess.

There are many different designs and types of test tube racks available. Here are some of our favorite designs and types:

  • Interlocking cube racks
  • Stackable test tube holders
  • Plastic test tube containers

Interlocking cube racks are a fun, new way to organize and store test tubes. These cube racks allow you to store a variety of different sized test tubes including culture tubes, centrifuge tubes and microcentrifuge tubes, all at the same time. You also have the opportunity to create your own test tube container configuration, since each of the modules are able to rotate independently of one another. The modules also come in different colors which allows for organizing the test tubes with a simple color coding process.

Is your laboratory tight on space? Stackable test tube racks save space with their unique design. They are also perfect for storage in refrigerators, freezers and lab bench tops. These holders can also be submerged under water and without tipping over the test tubes. Like the interlocking cube racks, stackable test tube containers also come in a variety of different colors and sizes.

Plastic test tube holders are very durable and are easy to clean. You won’t have to worry about these racks chipping, peeling or rusting. Because of their durability, they are designed to handle reuse and can with stand the day to day wear and tear. These plastic test tube containers also come in a variety of sizes and colors.

 

We hope this post helps inform you on the importance of lab cleanliness and how test tube racks can be an easy way to keep an organized lab!

How To Select The Right Laboratory Mixing Equipment

Purchasing laboratory mixing equipment can be an overwhelming task. In order to simplify the purchasing process, there are several purchasing requirements you should take into consideration. This post will outline the types of laboratory mixing equipment and how they are used.

There are three categories of laboratory mixing equipment. They include laboratory mixers, shakers and rockers.  In the laboratory mixers product category, the most common type of mixers are magnetic stirrers. These mixers use a strong magnet, which moves a magnetic stir bar in a flask of liquid. This mixer offers a wide variety of speeds ranging from gentle mixing to strong agitation. Magnetic stirrers also can come with a heated platform or with a non-heated platform.

If you are looking for laboratory mixing equipment that can be used for vigorously mixing, agitation or re-suspension of samples, the vortex mixer is the right selection for you. A vortex mixer moves in a circular motion and has a relatively small orbit. The vortex mixer also can operate in a continuous mode or a touch setting. There are many different product options of the vortex mixer. Some of these options include multi tube models and multi-sample temperature control units.

In the laboratory shakers category, reciprocal shakers are often used. They are designed to move back and forth along the horizontal plane. This means that these shakers push liquid from one side of the container to the other. Typically, the reciprocal shakers are used for average to vigorous mixing and blending of samples. They can also be used in sedimentation studies, which tend to use the lower speeds of this shaker.

Looking for a shaker that is ideal for cell and tissue culture work? Orbital shakers move in a circular motion along the horizontal plane. The key benefits of this shaker are it’s ability to aerate the samples and evenly distribute the cells and nutrients throughout the flask.

 A laboratory shaker similar to the orbital shaker is the incubated shaker. The design of the incubated shaker is essentially the same as the orbital shaker, except incubated shakers are enclosed and have a built in temperature control. Incubated shakers also come in a variety of different sizes including small bench top units and large, stacked floor models.

Another category of laboratory mixing equipment is laboratory rockers which include 2D and 3D rockers. 2D rockers move in a see-saw motion. They also operate at lower speeds, which is ideal for staining, de-staining, blotting and gentle mixing. 3D rockers actually move in a circular up and down motion. They can also be used for staining and blotting. Most researchers tend to rely on 3D rockers for applications where they would like to avoid the formation of foam.

After deciding what type of laboratory mixing equipment you need, you should also figure out how much space you have in your laboratory for the equipment. Laboratory mixing equipment comes in several different sizes. The larger model laboratory mixing equipment provide ample space for samples. On the contrary, smaller models are best for researchers who are short on space. We hope this post helps clarify the types and uses of laboratory mixing equipment and makes your purchasing decision a little easier!

 

 

Ample Scientific’s Complete Product Line Now Available

We are now an authorized distributor of Ample Scientific’s entire product line.  Ample Scientific is a manufacturer of scientific equipment with a concentration in lab microscopes and laboratory centrifuges.  Established in 2009 Ample Scientific has already made an impact in the laboratory by providing an inexpensive alternative while still maintaining superior quality.

All of Ample Scientific’s lab equipment comes with a standard one year limited warranty which protects against all manufacturer’s defects.  We are excited to offer their complete line so that our customers have a cost effective solution for their laboratory.  When browsing our online catalog you can easily identify their centrifuge line from their distinctive white and red colors.  Providing both digital and analog centrifuges, as well as portable 12 volt models that can be plugged into car lighter outlets, Ample Scientific will have a centrifuge to fit your requirements.

Since we do not have a large selection of centrifuges or microscopes to choose from on our website currently we are excited to team up with Ample Scientific to bring you their complete product line.