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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 ...
Whereas manual pipettes need a movement of the thumb (up to 3 cm), electronic pipettes have a main button. The programming of the pipette is generally done by a control wheel and some further buttons. All settings are displayed on a small display. Electronic pipettes can decrease the risk of RSI-type injuries. [8] [9]
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.
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.
General laboratory stands, racks, filter paper, reagents, etc. Induction coils: as a source of high voltage electricity Cathode ray oscilloscope ' Recording kymograph: historically, used in human or animal experiments to measure and record data Long extension kymograph: historically, used in or human animal experiments to measure and record data
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 pharmaceutical lab technician using a multi-pipette device to place red liquid into a row of test tubes. Image source: Getty Images. Dow stock No. 2 to buy hand over fist in 2025: Johnson & Johnson
A small pipette allows for more precise measurement of fluids; a larger pipette can be used to measure volumes when the accuracy of the measurement is less critical. Accordingly, pipettes vary in volume, with most measuring between 0 and 25.0 millilitres (0.00 and 0.88 imp fl oz; 0.00 and 0.85 US fl oz). [2]
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