INFICON Explorer Portable Gas Chromatograph User Manual

Page 190

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Method Development

188

5. If you have selected the ECD, you must set it up.

6. To change the view from the PID to the ECD, press DISPLAY, STATUS, GC,

DET. You will be prompted to change views to the ECD.

7. Press Enter Menu.

Use this option to switch back to the PID view.

If you are using one of the methods supplied with your assay, each column will have
associated chromatographic settings. You can modify these settings to suit your
application or you can use the existing settings.

Assay development can be approached in two ways: first, you can develop a custom
assay based on the compounds that are included as part of the assay that has been
shipped with your instrument. Second, you can develop your own library of
compounds.

You can set the PID to high sensitivity for low concentrations, or for compounds
that do not respond well to a PID. Select low sensitivity for high concentrations. The
ECD has one sensitivity setting.

1. Press Enter Menu, SETUP, CONFIG, SENSE.

2. Use the arrow keys to select the high sensitivity option for your columns.

If the high sensitivity option is not selected, then the detector is operating at
low sensitivity.

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