Abstract
A rugged dual column LC method was developed for the screening analysis of glyphosate in ground water. Analysis was based on a previously described pre-column fluorescence derivatization procedure. The method employed a short pre-column cartridge and a conventional reverse phase analytical column. Method precision for the screening assay was acceptable (13.1% RSD). The method was applied to a large set of pond water samples using the same analytical column without discernible loss of column efficiency during the course of analysis. The method represents an efficient and robust process for the analysis of glyphosate in ground water samples.
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