Hello,
I have installed a new column on my GC. When I started to work with it, initially by passing only the solvent (heptane), the chromatograms are not looking as expected, as you can see in the attached file. Do you have any idea what could be the problem?
Unexpected chromatograms after installing a new GC column may result from improper installation, insufficient conditioning, or incorrect temperature settings. To resolve these issues, check column trimming, installation height, and sample injection techniques.
Hi Elena Grosu ,
1. Kind reinstall the column. Make sure the length to the inlet and detector are as recommended by the OEM. And trim correctly.
2. After installation, try to bake-out the column before usage.
3. Confirm the grade of the heptane you Injected. Is it analytical grade or GC grade?
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