Installation Guide
Adapting for cool on-column injection
9
Adapting for cool on-column injection
The HP 7683 Automatic Liquid Sampler can be adapted to inject samples directly
onto 250-µm, 320-µm, and 530-µm columns.
If you wish to adapt the injector and GC for cool on-column use, follow these
steps:
1. Select the on-column syringe needed for the column size. See your
HP Chemical Analysis Columns and Supplies catalog and Volume 2 of your
GC Operating Manual for a list of parts.
2. Prepare the GC inlet. (See Volume 2 of your GC Operating Manual for
instructions).
• Check your needle to column size.
• Verify that the insert matches the needle size.
• If necessary, replace the septum.
3. Verify that the correct needle support assembly is installed in the injector.
Replace if necessary. See Replacing the needle support assembly on
page 18.
For a list of consumable needed to perform these injections, see Volume 2 of
your GC Operating Manual.
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