Pipette suction heads can be classified in the following ways:

Classified by applicable pipette type

Ordinary pipette nozzle: Suitable for conventional manual pipette, this nozzle is more common and has a variety of specifications to choose from to meet different pipette needs.

Electronic pipette nozzle: Used with electronic pipette nozzle, it may be different from ordinary pipette nozzle in terms of accuracy and adaptability, and is usually specially designed according to the brand and model of electronic pipette to ensure good compatibility and accurate pipette effect.

Classification by material

Polystyrene (PS) head: with good chemical stability and transparency, the price is relatively low, is one of the most commonly used head materials. However, the suction head of polystyrene material may swell or deform in the presence of some organic solvents.

Polypropylene (PP) suction heads: have higher chemical stability and heat resistance, withstand a wider variety of organic solvents, and are more stable and not easily deformed during high temperature sterilization. However, it may be slightly less transparent than polystyrene suction heads.

Classification by specification

Micro suction head: usually used to remove micro-level liquid, common specifications are 0.5μL, 1μL, 2μL, 5μL, 10μL, etc., suitable for the sample size requirements of extremely accurate experiments, such as gene sequencing, PCR reaction.

Conventional suction head: used to remove larger volumes of liquid, specifications generally ranging from 20μL to 1000μL, such as 20μL, 50μL, 100μL, 200μL, 500μL, 1000μL, etc., to meet the needs of most daily experiments, such as chemical analysis, cell culture and other fields.

Large-capacity suction head: It can be used to remove more than 1mL of liquid, common specifications are 5mL, 10mL, etc., mainly used in experiments that need to deal with larger volumes of liquid, such as fermentation liquid sampling in biopharmaceuticals, liquid transfer in large-scale cell culture, etc.