Modification of Hewlett-Packard Chemstation (G1034C version C.02.00 and G1701AA version C.02.00 and C.03.00) data analysis program for addition of automatic extracted ion chromatographic groups.

A modification to data analysis macros to create "ion groups" and add a menu item to the data analysis menu bar is described. These "ion groups" consist of up to 10 ions for extracted ion chromatographs. The present manuscript describes modifications to yield a drop down menu in data analysis that contains user-defined names of groups (e.g., opiates, barbiturates, benzodiazepines) of ions that, when selected, will automatically perform extracted ion chromatographs with up to 10 ions in that group for the loaded datafile.