AAB MT Basic Knowledge Correctly Solved

4 types of centrifuges - ANSWER-tabletop -microcentrifuges -high-speed centrifuges -ultracentrifuges 3 types of pipettes - ANSWER1. automated 2. semi-automated 3. glass Automated pipettes - ANSWERfrequently used to prepare many samples for analysis and can be an integral part of automated analyzer Semi-automated micropipettes - ANSWERcontain or deliver small volumes of liquid ranging from 1 to 1000ul 2 types of displacement for semi-automated pipettes - ANSWERair displacement: forward & reverse positive displacement Types of glass pipettes - ANSWER-transfer/volumetric -measuring/graduated -to contain (TC) or rinse-out pipettes -to deliver (TD) pipettes -to deliver/blow-out Transfer/volumetric pipettes - ANSWERhave a bulb in the middle of the pipette with a tapered delivery tip Measuring/Graduated pipette - ANSWERuniform in diameter with a tapered delivery tip To Contain (TC) or Rinse-out pipettes - ANSWERmust be rinsed with the appropriate solvent after the initial liquid has been drained from these pipettes To Deliver (TD) pipettes - ANSWERfilled & allowed to drain by gravity -must be vertically and the tip placed against the side of the receiving vessel To Deliver/Blow Out pipette - ANSWERare filled and allowed to drain, after which the remaining fluid in the tip is blown out. -easily identified by the 2 frosted bands near mouthpiece of the pipette