What is a pipette?

A pipette is a laboratory tool commonly used in chemistry, biology, and medicine to deliver a volume of liquid, usually as a media dispenser. Pipettes come in a variety of designs with different levels of accuracy and precision, from single-piece glass pipettes to more complex adjustable or electronic pipettes. Many pipette types work by creating a partial vacuum over a liquid holding chamber and selectively releasing that vacuum to aspirate and dispense liquid. Measurement accuracy varies by instrument.