CHEM LAB II PIPETTING

delivers the exact amount it holds into a container

holds the particular volume but does not dispense the exact volume

(WITH continuous ETCHED ring on the top of the pipet)- Exact volume is obtained when the last drop is blown out

(WITHOUT ETCHED ring on the top of the pipet)- Liquid is allowed to drain by gravity

self-draining

for non-viscous fluid

For viscous fluid

With etched ring

Commonly made from plastic

Transfers fluid without consideration of a specific volume

With graduations to the tip

Blowout pipette

Without graduations to the tip

Self-draining pipette

MICROPIPETTES

MICROPIPETTE

MICROPIPETTE

MICROPIPETTE

A pipette associated with only one volume (fixed volume) or able to select different volumes.

It relies on piston for suction creation to draw the sample into a disposable tip- Piston does not come in contact with the liquid