03 RODRIGUEZ_INSTRUMENTATION
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Types of pipette according to calibration marks/design:
To deliver (TD) To contain (TC)
Types of pipette according to drainage characteristics:
Blowout Self-draining
Type of pipette (according to design) which delivers the exact amount of liquid
To Deliver (TD)
Type of pipette (according to design) which holds particular volume but does not dispense the exact volume
To Contain (TC)
Type of pipette (according to drainage characteristics) which has continuous etched rings on top of the pipet
Blowout
Type of pipette (according to drainage characteristics) which delivers exact volume obtained when the last drop is blown out
Blowout
Type of pipette (according to drainage characteristics) with the absence of etched rings
Self-draining
Type of pipette (according to drainage characteristics) wherein liquid is allowed to drain by gravity
Self-draining
A transfer pipette used for non-viscous fluid and is self-draining
Volumetric pipet
A transfer pipette used for viscous fluid and has etched rings
Ostwald Folin
A pipette used to transfer fluid without consideration of any specific volume
Pasteur
A measuring pipette with graduations to the tip; blowout pipette
Serological pipette
A measuring pipette without graduations to the tip and is calibrated between 2 marks
Mohr pipette
(SELF-DRAINING / BLOWOUT) Mohr pipette
Self-draining
(SELF-DRAINING / BLOWOUT) Serological pipette
Blowout
Graduated/Measuring pipette examples
Serologic Mohr Bacteriologic Ball, Kolmer and Kahn
Transfer pipette examples
Volumetric Ostwald Folin Pasteur Automatic macro- or micropipettes
Type of TC micropipettes
Sahli-Hellige Lang-Levy RBC and WBC pipettes Kirk and Overflow pipette
Type of mechanical pipette which relies on piston for suction creation to draw the sample into a disposable tip.
Air Displacement Pipette
T/F: The piston of an air displacement pipette does not come in contact with the liquid
TRUE
Type of mechanical pipette which operates by moving the piston in the pipette tip or barrel, much like a hypodermic syringe. It also does not require a different tip for each use.
Positive Displacement Pipette
A mechanical pipette that obtains liquid from a common reservoir and dispenses it repeatedly. It also combines sample and dispensing functions.
Dilutor/Dispenser Pipette
most commonly used type of glassware used for heating and sterilization purposes
Borosilicate glass (pyrex and kimax)
pyrex strain point
515 C