Agilent Technologies PL-GPC 220, Руководство пользователя

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PL-GPC 220 User Manual 39
Using the Module
4
The Graphical User Interface
• Last Vial
– Position in the carousel of the last vial in the autosampler
sequence.
• Rinse Vials
– These checkboxes under the first and last vial positions denote
if the first or last vials are to be used as rinse vials.
• Rinse Cycles
– A rinse vial (typical a vial containing solvent) can be
programmed at regular intervals throughout the autosampler sequence. The
example shown in the dialog above, programs a rinse after every 3 samples.
Typically, a rinse at the beginning and the end of the autosampler sequence
(First and Last only) is sufficient for most applications.
• Sample Run Time
– The duration time of the sample run. Using 30 cm PLgel
columns at 1.0 mL/min, the following sample run times are recommended
(if a PL-GPC 220 Viscometer is installed in parallel, then the times shown in
parentheses should be used to allow the viscometer break through peak to
elute before the injection of the next sample):
•
1 column – 12 min (30 min)
•
2 columns – 25 min (45 min)
•
3 columns – 35 min (55 min)
•
4 columns – 45 min (65 min)
• Idle After Sequence
– If this box is checked, the system will default to the
IDLE mode on completion of the sequence. This has the advantage of
reducing the solvent consumption (assuming the Idle Flow Rate is
programmed to a low flow rate) and turning the heaters off in the carousel.
• Time Delays
• After Flush
– The wait time after the syringe has displaced the sample
from the injection system back to the vial.
• After Fill
– The wait time after the syringe has sucked the sample from the
vial.
• Equilibrating
–The time the sample is held in the injection loop prior to the
injection valve switching from Load to Inject.
• FTIR
Button - Launches the GPC/FTIR collection program if operated with a
Agilent FTIR spectrometer.