Micropipetting

Which of the following is not part of the micropipette?

• tip ejector button

• plunger button

• volume adjustment knob

• all are parts of the micropipet

• shaft

When dialing in a volume on a P-20 what should it read if you are putting in 9.2uL?

• 9

  2

  0

• 0

  9

  2

• 9

  0

  2

• 1

  9

  2

Which micropipette is best to use when you need to measure out 20 microliters of something?

• p-20

• p-200

• p-1000

• p-100

Convert 2.0mL to uL.

• 2,000,000 µL

• 2000 µL

• 0.0020 µL

• 0.20 µL

When using a micropipette you should go to which stop prior to taking in liquid?

• 1st

• 2nd

• none, enter the liquid first

• either, it doesn't effect your results

When trying to keep the samples sterile, when is it appropriate to change the tip of the micropipette?

• If you change samples

• If it touches you

• If it touches the table

• All of these are correct

Convert 1000 µL to mL.

• 1 mL

• 100 mL

• 10 mL

• 10,000 mL

What tool would you use to measure 50 μl?

• P-20

• P-200

• P-1000

What tool would you use to measure 4.5 μl?

• P-20

• P-200

• P-1000

What tool would you use to measure 325 μl?

• P-20

• P-200

• P-1000