What to Know Before Buying Pipettes

The viscosity of the sample will have a direct influence on which pipette is required. For aqueous samples which are low viscosity, an air displacement pipette is ideal. These pipettes are driven by a piston in an airtight sleeve which generates a vacuum. For more viscous or heavy liquids, a positive displacement pipette should be used. These pipettes are driven by a disposable piston which comes into direct contact with the sample.

How will samples required for PCR, ELISA, or other immunoassay applications affect which pipette should be used?

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What to Know Before Buying Pipettes

Source: Lab Manager