Operation
Multitechnique ChemStation control with a 6890 Series GC
87
Washes
Sample (preinjection)
Number of times the syringe is rinsed with the next sample following any
preinjection solvent washes. For each wash, the syringe is filled to
eight-tenths its full volume (4 µl for the 5-µl syringe and 8 µl for the 10-µl
syringe), and then emptied into a waste vial. Valid entries: 0 to 15. The
default entry is 0.
Solvent A (pre- or post-injection)
Number of times the syringe is rinsed with solvent A. For each wash, the
syringe is filled to eight-tenths its full volume (4 µl for the 5-µl syringe and
8 µl for the 10-µl syringe) and then emptied into a waste vial. Valid entries:
0 to 15. The default entry is zero.
Solvent B (pre- or post-injection)
Number of times the syringe is rinsed with solvent B. For each wash, the
syringe is filled to eight-tenths its full volume (4 µl for the 5-µl syringe and
8 µl for the 10-µl syringe) and then emptied into a waste vial. Valid entries:
0 to 15. The default entry is zero.
Pumps (preinjection)
Number of times the syringe is filled with the next sample prior to
injection. For each pumping stroke, the syringe is filled to eight- tenths its
full volume (4 µl for the 5-µl syringe and 8 µl for the 10-µl syringe), and
then emptied back into the sample vial. Valid entries: 0 to 15. The default
entry is 0.
Position
To specify the front, the back, or both injectors, click on the corresponding
option button. The selection you make here determines which injector
parameters (front, back, or both) become available not only at this dialog box,
but also at the Extended Injector Parameters and Injector Configuration dialog
boxes.
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