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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.
Move the pipette to the receiving vessel and dispense the liquid by gently pressing the pipette knob to the first stop (#3). Withdraw the tip from the liquid. Some liquid will remain inside the tip. The liquid remaining in the tip can be dispensed back into the original solution (#4) or thrown away. Release the pipette thumb to the ready ...
The plunger is again depressed to the first stop, and then to the second stop, or 'blowout', position. This action will fully evacuate the tip and dispense the liquid. In an adjustable pipette, the volume of liquid contained in the tip is variable; it can be changed via a dial or other mechanism, depending on the model.
Steps for operating a positive displacement pipette [15] Set the pipetting volume. Attach a CP tip onto the pipette. Hold the pipette vertically and press the plunger to the first stop. Put the CP tip into the sample and slowly release it, moving the button to the home position. Press the plunger to the first stop again to dispense the sample.
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 ...
Chevron Science Center sits on the site of the university's original building in the Oakland section Pittsburgh, the former State Hall. Between 1910 and 1971, the site of Chevron Science Center had been occupied by the former State Hall, the first building erected upon Pitt's move in the early 20th century to the Oakland campus and at various times home to the university's library ...
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The Buhl Planetarium and Institute of Popular Science closed as a general public venue on August 31, 1991, but continued to hold science classes, camps and teacher workshops in the building as an annex of its successor, Kamin Science Center, which opened in 1991. In 1994, the Annex closed and all programming moved to the CSC, while the Carnegie ...