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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 electronic pipettes. Many pipette types work by creating a partial vacuum above the liquid-holding chamber and selectively releasing this vacuum to draw up and dispense liquid ...
Reverse pipetting is a technique to dispense a measured quantity of liquid by means of air displacement pipette.The technique is mainly recommended for solutions with a high viscosity or a tendency to foam: [1] as it reduces the risk of splashing, foam or bubble formation.
The Kenneth Rainin Foundation was founded in 2007 by Kenneth Rainin, founder of Rainin Instrument Company, which sold a mainstream brand of laboratory pipettes. [ 3 ] [ 4 ] Rainin donated a substantial part of his fortune to a variety of causes during his lifetime.
Move the pipette to the receiving vessel and dispense the liquid by gently pressing the pipette knob to the first stop. After about one second, keep on pressing pipette knob to the second stop. This action will completely empty the tip from the liquid. Afterwards withdraw the tip from the liquid and release the pipette to the ready position.
A graduated pipette is a pipette with its volume, in increments, marked along the tube. It is used to accurately measure and transfer a volume of liquid from one container to another. [ 1 ] It is made from plastic or glass tubes and has a tapered tip.
Mettler-Toledo (NYSE: MTD) is a multinational leader in precision instruments and services. The company focuses on innovation and quality across laboratory, industrial, product inspection, and food retailing applications.
Nanopipettes are pipettes in nanometer scale, [1] generally made from quartz capillaries with the help of laser-based pipette puller system. [2] Glass and carbon nanopipettes are most encountered ones in literature. Carbon nanopipettes are nanopipette shaped, hollow carbon layer. The thickness or diameter of nanopipettes can be altered.
Positive displacement pipettes are a type of pipette that operates via piston-driven displacement. [1] [2] Unlike an air displacement pipette, which dispenses liquid using an air cushion in the pipette tip, the piston in a positive displacement pipette makes direct contact with the sample, allowing the aspiration force to remain constant.
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