Laboratory Pipettes: What are the Most Used?
When measuring or transferring small quantities (milliliters or microliters) of liquid, a laboratory pipette is used. Laboratory pipettes have different designs. They also have different levels of accuracy and precision. Laboratory pipettes are used based on a specific application.
The Most Used Laboratory Pipettes
Some of the most used laboratory pipettes today include:
Pasteur pipettes are typically made of plastic or glass. What makes them different from the other types of pipettes is they are not graduated or calibrated for any particular volume.
Transfer pipettes are made from one piece of plastic. The bulb of this type of pipette also works as a liquid holding chamber.
Air Displacement Single-Channel and Multi-Channel Pipettes
Single-channel pipettes are considered non-disposable instruments. They also come with an air-displacement design that allows them to provide precise measurement results. On the other hand, multi-channel pipettes are still similar in a way to single-channel ones. One difference however is they would need more than one tip at a time.
Graduated pipettes are micro pipettes that come with a long tube and have a series of graduations. The graduations indicate the various calibrated volumes.
Electronic pipettes are known for their ergonomic benefits. It is considered ideal when used in applications that will require repetitive pipetting. Electronic pipettes are used to perform many laboratory tasks and are programmable.
Volumetric pipettes are typically used to accurately measure the volume of a specific solution. Volumetric pipettes are usually used when creating laboratory solutions from a base stock. Volumetric pipettes are also recommended when preparing solutions for titration.