Simplified liquid chromatographic determination of glyphosate and metabolite residues in environmental water using post-column fluorogenic labelling |
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| Authors: | Yuk Y. Wigfield Monique Lanouette |
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| Affiliation: | Laboratory Services Division, Food Production and Inspection Branch, Agriculture Canada, Ottawa, Ontario K1A OC6 Canada |
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| Abstract: | Glyphosate and its metabolite aminomethylphosphonic acid in environmental water can be preconcentrated with an anion-exchange column, eluted with potassium citrate solution and determined directly by liquid chromatography with a post-column reactor and a fluorescence detector. The limit of detection and average recovery are 1 μg 1?1 and 89.3% for glyphosate and 0.4 μg l?1 and 86.3% for the metabolite. |
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