Selecting columns and detectors – INFICON Explorer Portable Gas Chromatograph User Manual
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Explorer Operator Manual
187
Selecting Columns and Detectors
Information specific to your assay is provided in the user notes supplied with your
assay. Information such as column coating or packing material and column length
will help you to determine which column to use for your application. A list of assay
compounds and their associated chromatographic settings is also provided, in the
user notes, to aid in the selection of a column for a specific application.
A detector is also selected as part of the method. If you compounds are better suited
to ECD detection, then select a method that utilizes the ECD. If you have co-elutions
on the PID, you can run a sample using the ECD and the PID. If both detectors are
selected the column effluent is split. Part of the sample is sent through the ECD and
the rest is sent through the PID. Using this method you can obtain two
chromatograms from the sample.
If the compounds of interest must be run on two columns, you must perform two
runs to complete an analysis and two runs to calibrate the instrument. If the
compounds of interest must be separated on all three columns, you must perform
three runs to complete an analysis and three runs to calibrate the instrument.
Enable only the columns that you require for your application. You must select the
column in combination with a detector. Select the PID or the ECD. The ECD is only
available for Assay 1.
1. Press Enter Menu, SETUP, CONFIG, and COLUMN. Use the arrow keys to
select the column/detector combination and press Enter Menu to confirm the
selection.
The ECD options are located below the PID options. Press the DWN ARROW
to select the ECD options.
You can select both PID and ECD column combinations. If you have selected
PID Column B and ECD Column B a run on Column B will be put through
both detectors. You can view the output from one detector at a time.
2. Select one, two or all three columns and associated detectors.
3. Press Exit to close the box.
4. Press Enter Menu to close the menu.