Laboratory pipettes are used for inoculating liquids during laboratory analysis or procedures.
The correct use of laboratory pipettes is important in order to guarantee safety and quality while performing several laboratory procedures. There are several essential precautions that must be taken during inoculation procedures to control the opportunities for the contamination of cultures, people or the environment. Sterile graduated or dropping (Pasteur) pipettes are used to transfer cultures, sterile media and sterile solutions. The laboratory pipette must be removed from their container or wrapper by the end that contains a cotton wool plug, taking care to touch no more than the amount necessary to take a firm hold. The parts of sterile laboratory pipettes that will be put into cultures or sterile vessels must not be touched or allowed to come in contact with other non-sterile surfaces, e.g. clothing, the surface of the working area, the outside of test tubes and bottles.
Laboratory pipettes can be divided into two main groups, volumetric pipettes and graduated pipettes. Graduated pipettes show a graduation scale on their body. Volumetric pipettes are not graduated; they are used to deliver a single specific volume of liquid. One of the most used type of laboratory pipettes is the Mohr pipette: the graduation on Mohr pipettes end before the tip. International PBI catalogue offers a vast range of laboratory pipettes for different purposes, from Pasteur pipettes to serologic pipettes, from Mohr pipettes to micropipettes. Platinum Mohr Pipettes are made of transparent polystyrene disposable negative graduation – They are peel pack individually wrapped, but they are also available packed individually in
polythene bags.
Accessing the online catalogue, you can find all the technical and commercial information about laboratory pipettes, in a vast range of models, ideal for different purposes, with different level of precision. Micropipettes for microbiological analysis are also avalaible.
