Operation
Setting the run parameters
60
Number of sample washes
Specifies the number of times the syringe is rinsed with sample before the
injection. The injector lowers the needle into the sample vial, fills the syringe to
eight-tenths its full volume, and empties it into one of the waste bottles.
Number of sample pumps
Specifies the number of times the syringe plunger is moved up and down while
the needle is in the sample to expel air bubbles and improve reproducibility.
Viscosity delay
Specifies the number of seconds the plunger pauses at the top of the stroke
during sample pump, sample draw, and sample and solvent washes. For
viscous samples, the pause during sample draw allows the sample to flow into
the vacuum created by the syringe. During wash strokes, it allows diffusion of
the viscous sample into the wash solvent. Viscosity delay settings range from
0–7 seconds.
Solvent washes—pre- and post-injection
Number of solvent A washes: Specifies the number of times the syringe is
rinsed with solvent from the solvent A bottle. The injector lowers the needle
into the solvent A bottle, fills the syringe to eight-tenths its full volume, and
empties it into one of the waste bottles.
Number of solvent B washes: Specifies the number of times the syringe is
rinsed with solvent from the solvent B bottle. The injector lowers the needle
into the solvent B bottle, fills the syringe to eight-tenths its full volume, and
empties it into one of the waste bottles.
Volume
Specifies the injection volume. Each volume stop corresponds to a volume of
one-tenth the syringe’s capacity. Valid setpoints are 1–5 stops.
To Next Page
Loading...
