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A pipette (sometimes spelled as pipet) is a type of laboratory tool commonly used in chemistry and biology to transport a measured volume of liquid, often as a media dispenser. Pipettes come in several designs for various purposes with differing levels of accuracy and precision , from single piece glass pipettes to more complex adjustable or ...
Micropipette in action. Piston-driven air displacement pipettes are a type of micropipette, which are tools to handle volumes of liquid in the microliter scale. They are more commonly used in biology and biochemistry, and less commonly in chemistry; the equipment is susceptible to damage from many organic solvents.
The Micropipette developed by Heinrich Schnitger, which is often referred to as "Eppendorf pipette" in laboratory usage, [citation needed] counts today in various designs as standard almost every biomedical laboratories. For biologists, biochemists, biology laboratory technicians, medical-technical assistants and similar professions handling of ...
There are two basic types of microinjection systems. The first is called a constant flow system and the second is called a pulsed flow system.In a constant flow system, which is relatively simple and inexpensive though clumsy and outdated, a constant flow of a sample is delivered from a micropipette and the amount of the sample which is injected is determined by how long the needle remains in ...
used to hold specimen or samples Sterile loops: used to inoculate test samples into culture media for bacterial or fungal cultures, antibiograms, etc.; not heated before use—these are disposable pre-sterilised Thermal cycler: used to amplify segments of DNA via the polymerase chain reaction (PCR) process. Tissue culture bottles
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The standard technique for handling a graduated pipette is to hold the pipette tip dipped in the solution without touching the bottom of the beaker. Then use a propipetter, a pipette bulb, or rubber bulb, to draw the liquid into the pipette. The effective way to control the volume of the solution is to use one's forefinger. [2]
Eppendorf products are used in academic and industrial research laboratories, e.g. in companies in the pharmaceutical, biotech, chemical and food industries. They are also used in laboratories that perform clinical or environmental analysis, in forensic laboratories, and in industrial laboratories where industrial process analysis, production ...