Adapting For Cool On-Column Injection - HP 7683 Installation Manual

Automatic liquid sampler
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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.
Installation Guide
Adapting for cool on-column injection
9

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