When using a micropipettor, after properly placing a tip on, what must be done prior to going into a source (such as a microfuge tube) to draw out a sample? Lab manual, p. 90 and/or p. 93. push down the top knob of the pipette to second stop O nothing go into the sample prior to doing anything else Opush down the top knob of the pipette to first stop Submit Request

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When using a micropipettor before going into a source to draw out a sample you must push down the t... View the full answer