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VPrep User Manual 3.0
Mix
The Mix task repeatedly aspirates and dispenses a liquid sample in a single plate
or reservoir. The Mix task can be used to mix samples or to wash the pipette tips
in a reservoir or a MicroWash tray (see Figure 23).
Parameter
Definition
Shelf
Specifies the shelf in which to mix. For information
on configuring the shelves, see “Configure
Shelves” on page 31.
Pre-aspirate volume
Specifies the volume of air to draw into the tip
before the first aspiration stroke.
Mixing volume
Specifies the volume of fluid to be repeatedly
aspirated and dispensed.
Blowout volume
Specifies the volume dispensed from the tips
following the last mix step. The tips are still in the
wells.
Mixing cycles
Specifies how many times to repeat the aspirate/
dispense cycle.
Quadrant(s)
Specifies the quadrant(s) in which to mix.
Tips distance from well
bottom
Specifies the distance (in mm) from the bottom of
the well at which the mix operation will be
performed.
Liquid class
Specifies the liquid class used in the mix task.
Aspirate velocity
Specifies the speed at which the fluid is aspirated
during the mix cycle.
Aspirate acceleration
Specifies the acceleration at which the fluid is
aspirated.
Dispense velocity
Specifies the speed at which the fluid is dispensed
during the mix cycle.
Dispense acceleration
Specifies the acceleration at which the fluid is
dispensed.
Dynamic tip retraction
Specifies the distance in millimeters to lower the
head for each microliter aspirated and raise for
each microliter dispensed.