What is the largest volume the WASP can dispense?
WASP 400µl DEPOSITION MODE The basis of the spiral plating technique is that a known volume of sample is dispensed onto a rotating agar plate in an Archimedes spiral. This is accomplished with such precision that the amount of sample on every segment of the plate is known, constant and repeatable. The volume of sample deposited per unit area of plate decreases across the spiral, resulting in a dilution effect. This technique allows for the counting of isolated colonies in specific sectors of the plate where a known volume of sample has been deposited. All WASP 2 models incorporate a 500µl backfill syringe and different software, making the WASP 2 unique. WASP 2 has many potential deposition volumes. The normal WASP 2 deposition volume options are 50, 100, 200 or 400µl. The product software optimises the speed of turntable rotation according to the volume of sample being dispensed. This is necessary to compensate for centrifugal force, which, with larger volumes, would destroy any gradi
