Metrohm 840 PC Control 5.0 / Touch Control - Manual (Page 331)

6 Appendix
PC Control / Touch Control
319
The titration cell should be filled with solvent before the sample is
added so that the sample can be pipetted directly into the liquid (tip
immersed).
Command sequence:
LQH change port
MOVE move to titration cell
LIFT move to work position
Eject sample
The sample should be ejected at a reduced dosing rate (< 10 mL/min).
The appropriate settings can be made in the liquid handling command
under Rate.
Command sequence:
LQH End volume
Rinse
In order to keep sample solution carryover as low as possible, rinsing
with solvent can be carried out after the sample has been ejected. This
is particularly recommended for non-aqueous samples.
In preparation for the next pipetting process the cylinder should be
completely ejected.
Command sequence:
LQH fill or aspirate
LQH eject