INFICON Explorer Portable Gas Chromatograph User Manual

Page 112

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110

Updating Library Information

If your chromatographic settings have not changed from the original assay, but
library compounds are not correctly identified or not identified at all, they may have
drifted out of the peak recognition window. You can update library information
based on a recent chromatogram that has been run using the original assay.

To update library information:

1. Select the Assay tab.

2. Open the original assay and save it with a new name.

3. Click

Send to

Explorer

to send the assay information to

Explorer.

4. Select the first column/detector pair.

If your application uses 2 or 3 columns you must repeat this procedure for each
column. If you are using the ECD, you must repeat this procedure for each
ECD library.

5. Remove all the unwanted compounds from the library.

To remove a compound from the library, select it and press

Delete

.

6. Run a chromatogram on the selected column/detector pair.

The chromatogram must contain all the compounds listed in your library. It
must also be run using your original assay method.
Allow

Explorer to warm up for at least 30 minutes before running the

chromatogram.

7. Re-integrate the chromatogram.

Use the

re-integrate

command in the Analyzer menu or right-click on the

chromatogram and select

re-integrate

from the pop-up menu. Compounds

matching library information will be identified.

8. Click on the first compound in the library.

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