Common Pipette Used in Laboratory

There are three common types of pipettes used in laboratory: micro pipettes, graduated pipettes, and Pasteur pipettes. Although they are all pipettes, they each have their own characteristics and uses. The following content will introduce what are they and what they are used for.

Manual and Electric Pipette

The first is the handheld pipette. This is the common micropipette, generally there are two series: manual and electric.
It’s a pen-like hand-held device for pipetting tiny amounts of samples.
It is divided into single-channel and multi-channel.
There are many pipette range options, ranging from 5μL to 5mL. The scope of the application is very wide.
It is usually used with pipette tips, which are used to aspirate and expel the working liquid.
This pipette has high precision and accuracy, and is suitable for routine experimental pipetting needs.
But it is greatly affected by the environment and operation, so it needs to be properly preserved, regularly checked, and calibrated, and the operator needs to learn and train operating skills before using it.

Graduated Pipette

Next is the graduated pipette. A graduated pipette, also called a serological pipette, is a long, thin, clear plastic tube.
Its tube wall has a clear scale mark, and different capacities are marked with colored circles of different colors on the top of the pipette.
It can be used to complete the pipetting operation of transferring a certain volume of solution.
It has a smooth surface, a low sticking rate, and guaranteed measurement accuracy.
It is usually available in 1mL, 2mL, 5mL, 10mL, 25mL, and 50mL volumes.
As well as styles with built-in filters, stretched tip models and welded tip models are available, and people can choose whether they need it according to their own experimental requirements.
It can be widely used in various fields requiring sterile pipetting conditions.

Pasteur Pipette

The last one is the Pasteur pipette. A Pasteur pipette is a disposable, small-volume plastic pipette that is easy to use for transferring small amounts of liquid.
It does not have any tick marks.
Pasteur pipettes are more commonly known as plastic pipette droppers.
It also has many optional capacities, including 1mL, 2mL, 3mL, 5mL, and 10mL. Various capacity options can meet various market demands.
Its tip is elongated. The required sample can be easily aspirated from a small container or a deep container.
It has a smooth surface with little sample residue. Its pipetting operation has high accuracy.

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