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The micropipette was invented and patented in 1960 by Dr. Heinrich Schnitger in Marburg, Germany. Afterwards, the co-founder of the biotechnology company Eppendorf, Dr. Heinrich Netheler, inherited the rights and initiated the global and general use of micropipettes in labs. In 1972, the adjustable micropipette was invented at the University of ...
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 ...
The use of microinjection as a biological procedure began in the early twentieth century, although even through the 1970s it was not commonly used. By the 1990s, its use had escalated significantly and it is now considered a common laboratory technique, along with vesicle fusion , electroporation , chemical transfection , and viral transduction ...
Once a suitable tip is attached to the pipette, press its knob to the first stop. Dip the tip into the solution to a certain depth according to the volume set.; Afterwards slowly release the pipette knob till the starting position.
Typical volumes are 1, 2, 5, 10, 20, 25, 50 and 100 mL. Volumetric pipettes are commonly used in analytical chemistry to make laboratory solutions from a base stock as well as to prepare solutions for titration. ASTM standard E969 defines the standard tolerance for volumetric transfer pipettes. The tolerance depends on the size: a 0.5-mL ...
Eppendorf, a company with its registered office in Germany, develops, produces and sells products and services for laboratories around the world.. Eppendorf products are used in academic and industrial research laboratories, e.g. in companies in the pharmaceutical, biotech, chemical and food industries.
A Mohr pipette is designed for use as a drain-out pipette. It has a straight tube and graduation marks indicating 0.10 millilitres (0.0035 imp fl oz; 0.0034 US fl oz) changes volume. This type of pipette does not have its first (lowest) graduation mark until well past the base of the tip.
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