Pipette Suction Heads: The Ultimate Guide

A pipette suction is a small plastic part attached to a pipette used in scientific laboratories for the accurate transfer of small amounts of liquid. While this may seem like a small and insignificant part of a lab setup, the importance of using the right pipette suction can't be overstated.
In this article, we will discuss the different types of pipette pipette heads, what they are used for, and how to choose the right pipette head for your experiment.
Type of pipette suction head
There are two main types of pipette suction heads: standard suction heads and filter suction heads.
Standard suction heads are made of unfiltered plastic and are usually used for simple experiments with no risk of contamination or cross-contamination. They are also often used to dispense reagents.
On the other hand, the cartridge suction head has a filter that prevents liquid from entering the pipette. This type of suction is used in experiments where contamination is a problem, such as when handling DNA or RNA samples.
Filter nozzles are also useful when dealing with viscous or volatile liquids, as the filters prevent clogging and evaporation, respectively.
Select the appropriate pipette suction
When choosing the right pipette suction head, there are several factors to consider:
Liquid type: The type of liquid transferred will affect the choice of pipette suction head. For example, viscous liquids require wider openings, while volatile liquids require filter nozzles.
Volume: The volume of the transferred liquid will determine the size of the pipette suction head. It is important to select a suction head suitable for fluid deposition to ensure accuracy.
Accuracy: In order to achieve accurate pipetting, it is necessary to use a narrow diameter suction head. A wider aperture will allow for faster flow, but may affect accuracy.
Chemical resistance: Some liquids may react with the material of the pipette tip, so it is important to choose a tip that is resistant to the chemicals used.
Sterility: When working with bacteria or other microorganisms, it is very important to choose a sterile filter element to prevent contamination.
Pipette suction is an important part of laboratory work. The choice of pipette head affects accuracy, precision, and contamination levels. By considering the above factors, you can select the right pipette suction for your experiment and ensure reliable results.