Hi. Ive been using a DB-624 column to determine VOCs in a 6890N GCMS instrument for a few months. What parameters should I take into account to determine whether I have to change my current column? I know that resolution is mandatory but I was wondering if I need to consider other concepts such as baseline shifting, column bleeding and so on. Also it would be great if u share some URLs and sources to read about this. Thanks.

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