Pipettes are a very useful tool for the laboratory, but should be used carefully to ensure accurate measurement. Although there are different types and sizes of pipettes, the most common are those of 5, 10 and 25 mL. 5-mL specimens are usually used to draw small samples, whereas 10- and 25-mL specimens are used to draw larger samples. However, 25-mL capsules are more difficult to use and require more skill.
Pipettes are one of the most basic and essential pieces of equipment in any laboratory. They are used to measure and transfer small amounts of liquids, and come in a variety of shapes and sizes to suit different needs. At Kalstein we offer a wide range of pipettes, and our team of experts is always on hand to help you choose the right pipette for your needs.
Qualities of Pipettes
Pipettes are made of glass or plastic and have a long, thin body with a light bulb at one end. The ampoule is used to remove the liquid, and the liquid is delivered by squeezing the ampoule and releasing the liquid through the small opening at the tip of the pipette.
They are classified according to their accuracy and precision, being the class A the most accurate and precise. Class B and C pipettes are less precise and accurate but are still suitable for many laboratory applications.
They are an essential tool in any laboratory and are used in a wide range of applications, such as measuring small amounts of reagents, transferring small volumes of liquids and dispensing liquids in test tubes or other containers.
Most pipettes are used with one hand, although there are also special pipettes for use with both hands. These pipettes are called “volumetric pipettes” and are used in the laboratory to measure precise amounts of liquid.
Method of use
To use a pipette, care must be taken not to touch the tip with any part of the body. If the tip is touched, it is necessary to clean it with alcohol before use. It is also important to ensure that the tip of the pipette is firmly inserted into the container containing the liquid to be measured. If the tip is not fully submerged, measurement may not be accurate.
To remove a sample of fluid from a container, place it in the container and then suction the fluid out of the mouth. This is done by inserting the tip of the pipette into the liquid and then sucking the air out. The liquid will rise depending on the amount of air that has been sucked in.
Once it has been placed in the container with the liquid, air must be expelled to allow the liquid to flow into the container. To do this, hold it at a vertical angle and then gently press the mouthpiece against the edge of the container.
Once the nozzle has been pressed, continue to push the liquid to the bottom of the container. If a precise amount of liquid is to be measured, it is necessary to ensure that it is fully filled, which should be looked down through the nozzle of the pipette to verify that the liquid reaches the bottom of the nozzle.
Once the liquid has been withdrawn, the tip of the pipette should be cleaned with alcohol and then stored in a clean, dry place.
Kalstein pipettes
At Kalstein, we are manufacturers of the best laboratory equipment on the market, we offer the best technology for our users. We have the Pipettes, corresponding to the YR series, which are ideal to have a fixed volume air displacement with the selected volume shown in a digital indicator (volume display). Able to withstand chemical contents. For more information, you can review our catalog from HERE
We have the best advice, so that your purchase is the ideal and at excellent prices. For more information, visit our website at HERE