: What sort of chemical madness are you working on?

It isn't HPLC...it's GC with a 4-valve heart-cut routine and a damned column that doesn't separate the components the way I want. I am trying to obtain CO2/CO results at the low ppm level after extracting them from an ethylene balanced gas mixture. The CO2 peak is too damned close to the huge ethylene peak so I am having a tough time getting separation. To make matters worse, the ethylene is carrying over into the mole sieve and contaminating successive runs, thus over-running the CO2 peak. Acht! To make matters worse, I have three columns in this mixture to tangle with. If I could just see how things were transpiring inside the columns before they run through the mole sieve and methanizer (yep, the methanizer is the big problem, can't run C2+'s through it), then I'd know better how to set this mess up. That said, I think I have to get rid of the PLOT-Q column and get a Carbon Plot column.

Does that answer your question?

Sigh!

Robert N Pruden