G4208A User’s Guide 118
4 Running Multiple-Vial Analyses
Analyzing Multiple Vials Using Different Methods
Analyzing Multiple Vials Using Different Methods
This section describes how to set up a 50- vial analysis using three methods
which you have previously created called e.g. METH1, METH2 and METH3. For
example: METH1 and METH2 have the same analytical settings but differ in the
injection volume and stoptime values. METH3 uses a different temperature and
requires a wait time of 30
min for the LC system to equilibrate.
• The first 20 vials are analyzed using METH1 with one injection per vial,
• the next 20 vials are analyzed using METH2 with two injections per vial,
• the last 10 vials are analyzed using METH3 with three injections per vial.
The vials are located in positions 1 to 50 of the autosampler tray.
The example assumes that the sequence table is empty. If the sequence table is
not empty, use the Delete button to delete all lines or use File - New.
1 Select the Sequence screen.
2 Move to line 1 and press Insert.
3 Select Method and then move to METH1 and press Load.
4 Move to the End of sequence list, select the Wizard button and enter:
5 Select Done to accept entries.
6 Move to the End of sequence list and select Insert.
7 Select Method and then move to METH2 and press Load.
8 Move to the End of sequence list, select the Wizard and enter:
9 Select Done to accept the entries.
This way of combining methods is called Sequence.
Vial Range 1 – 20
#Inj. 1
Vial Range 21 – 40
#Inj. 2
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