Chemstation: very sharp peaks not being identified

[MarkRob]

Hi there,

I'm using a slightly older version of chemstation--but that is probably not an issue. I've recently replaced my columns for pesticides. Now I have beautiful chromatography however chemstation wont recognize some of them.

I'm just wondering what peak width, threshold, baseline valley, etc. you would reccommend for this situation.

any help is appreciated.

thanks.

M

[GasMan]

Mark,

If the main problem is due to sharp peaks, then the peak width is probably the culprit. The peak width should be set to the width of the peak at half height. This is a starting point. You basically just need to 'play' with the different values until you get the results that you want.

Gasman

[Consumer Products Guy]

Chemstation version should not be an issue; we use some A.06 still, and recently ditched some A.03. I personally like the standard integration software better than the "enhanced". Do you mean not being integrated or not being calibrated/quantitated? For the first, can try Autointegrate, or make sure your peak area is set low so all peaks are integrated, integrator not "off" at the time you want it "on", etc.

[MarkRob]

Thanks!