Pipetting accuracy and precision

Understanding the difference between the terms ‘accuracy’ and ‘precision’ is crucial in pipetting.

Accuracy refers to how close the value is to what the pipette is set to dispense. For instance, if a pipette is set to 300 μl, accuracy refers to how much liquid is dispensed. Accuracy can vary depending on whether a pipette has been appropriately calibrated and how the pipetting is performed.

Conversely, precision measures how accurate the pipette is to a target volume over multiple dispenses. This means that when consecutively dispensing 300 μl, precision refers to how close the dispenses are to one another. This is sometimes referred to as the coefficient of variation (CV) and can be improved by ensuring proper pipetting techniques.

How to use a pipette: Accuracy and precision

Video Credit: INTEGRA Biosciences

About INTEGRA Biosciences

INTEGRA provides innovative solutions for Liquid Handling and Media Preparation applications which serve the needs of their customers in research, diagnostics and quality control laboratories.

Their instruments and plastic consumables are developed and manufactured in Zizers, Switzerland and Hudson, NH USA. In order to remain close to their customers, they maintain a direct sales and support organization in North America, the UK, France and Germany, as well as a network of over 100 highly trained distribution partners worldwide.

In recent years they have focused on developing a new and technologically advanced range of handheld electronic pipettes which are simple to use and meet the ergonomic needs of their customers.

Today they are proud to offer the widest range of electronic pipettes in the market spanning a range from single channel pipettes up to 384 channel bench-top instruments.

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Last updated: Nov 15, 2022 at 6:22 AM


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