Types of Serological Pipettes and Their Uses

Types of Serological Pipettes and Their Uses

Serological pipettes are used in the laboratory to deliver fluids.  These pipettes have a scale on one side to help measure fluid (in milliliters or ml) distribution or inhalation.  They are most recommended because they are very accurate in measuring the minimum increment level.  
 

Serological pipettes are mainly used for the following purposes:  

Mix the suspension.  

Mix reagent and chemical solution.  
Transfer cells for empirical analysis or expansion.  
Stratified reagents for creating higher density gradients.  
The serological pipette is designed as a blowout pipette.  These pipettes are graduated near the tip.  A rubber bulb attached to the top blows out the excess solution with air or gravity pressure.  
 
Usually, the blowout suction tube is marked with a double ring.  The person handling it will need to use additional light bulbs to apply air pressure and blow out every drop of liquid in it.  Single-ring straws, on the other hand, are "non-blowout" variants that allow the entire tip to be drained.