Chromatography Forum

Posted: **Sat May 12, 2007 10:59 am**

why do we get negative peaks in a chromatogram?

Posted: **Sat May 12, 2007 12:30 pm**

Could you throw in a little more information, negative peaks are caused by any number of reasons, dependant on the system (detector mostly, but not always). I guess what I am trying to say is the reason for a negative dip in UV is different that RI or ECD (and all of the other detectors too).

Posted: **Mon May 14, 2007 12:27 pm**

u mean all detectors do give negative peaks or is it spcfc to a certain kind?
i hav another question! cud u plz tell me hw are purity tests n assays in hplc different?

Chromatography Forum

negative peaks!

negative peaks!

thnx fr respondin!