Chromatography Forum

Does Agilent's Chemstation have an integration setting similar to Shimadzu's GC Solution software that allows it to chose the largest peak in a retention time window as opposed to the closest peak to the set retention time? I have a method for a production sample with varying amounts of a certain compound at different stages of the process. This varying concentration causes small changes in the actual retention time but it is always the largest peak in the window.

Thanks for your help

As a ChemStation user from A.03 to today, as I understand it, the ChemStation DOES already pick the largest peak in the "window" of the calibration table. I'll assume you know how to modify your peak "from" and peak "to" times in your calibration table.

I do know how to adjust the from and to ranges of the peak table. However with differeing concentrations(2-50%) for the component the width of the window is somewhat wide. When the lower concentration (2%) elutes I also have even smaller unknown compounds that elute in the large window. Chemstation inevitably will pick the unknown closest to the center of the window. And yes I have verified the peak and its concentration through a wet methods analysis so theunkown is really an unknown.

I think Chemstation always selects the largest peak in a time window if you make it a reference peak.

Bruce Hamilton