Hold the pipette, squeeze the bulb to release the air, dip part of glass exposed into liquid sample, gently release the bulb until liquid fill glass tube, the exceed part will stay in the middle bulb, move pipette away, squeeze the bulb again to expel the liquid. Easy to use, volume accurate, available in volume from 50ul to 1000ul. It’s very applicable to fixed volume sample transferring in various experiments.
Fixed Volume Pipette
Hold the pipette, squeeze the bulb to release the air, dip part of glass exposed into liquid sample, gently release the bulb until liquid fill glass tube, the exceed part will stay in the middle bulb,