Metrohm viva 1.1 (ProLab) - Manual (Page 477)

￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭
5 Method
viva 1.1 (for process analysis)
￭￭￭￭￭￭￭￭ 465
5.5.2.4.6.3 LQH - Parameters
Tab: Method ▶ LQH ▶ Properties... ▶ Parameters
Command name
Name of the command.
Entry 25 characters
The Liquid Handling function is defined on this tab.
Function
Selection of the Liquid Handling function that is to be carried out.
Selection Dosing | Fill | Aspirate | Eject to stop | Eject to
end volume | Exchange position | Change
port | Compensate
Default value Dosing
Dosing
The given volume is dosed. There is no automatic filling either before-
hand or afterwards.
Fill
The filling of the cylinder can take place at a freely selected port. The
valve disk then remains at the selected port.
Aspirate
With this function, liquid is aspirated from the specified port. As with
dosing, here too the cylinder is not filled automatically either before-
hand or afterwards. It should be possible to reach the volume to be
aspirated with a single piston stroke.
Eject to stop
With this function, the entire contents of the cylinder is expelled
through the specified port. The piston is pressed all the way down to
the stop, i.e. beyond the maximum volume marking at this time. This
function should only be carried out to eject any air bubbles present.
Eject to end volume
The entire contents of the cylinder is expelled through the specified
port. In contrast to the Eject to stop function, the piston moves to
the maximum volume mark, i.e. until it has executed 10,000 pulses.
This command should be used for pipetting functions for emptying the
cylinder.
Exchange position
With this function, the cylinder is first filled through the specified port.
The valve disk is then turned to Port 2 and the dosing drive can be
removed from the dosing unit.