Examination of surface water samples using GC/atomic emission detection / B.F. Scott, J. Struger and H. Tse. : En13-5/94-51E-PDF

"In two separate pesticide monitoring studies, surface water samples were collected from different locations in southern Ontario. Following clean up, the extracts were analyzed for selected P-containing pesticides using capillary column GC equipped with N/P and ECD detectors. These extracts were then analyzed by GC/AED for C-, S-, N-, P- and O-containing compounds. All target compounds identified by GC/NPD/ECD analysis were detected using the GC/AED technique. Concentrations of the target compounds were comparable as calculated from the results of both methods of analysis. In addition to the P-containing chemicals, which were mainly the target compounds, additional non-target compounds containing S and N were identified in the samples. The peaks were collated with respect to retention time and response. One of these compounds, benzothiazole, was found in 27 of the 34 samples"--Abstract.

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