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Intra-injector formulation of methyl esters from phenoxy acid pesticides

, : Intra-injector formulation of methyl esters from phenoxy acid pesticides. Journal of Chromatography 598(2): 309-312

The use of trimethylanilinium hydroxide as a derivatization agent prior to the gas chromatographic analysis of a broad range of phenoxy acids is described. Derivatization was performed inside the injector immediately before analysis, thereby minimizing the chance of exposing the operator to trimethylanilinium hydroxide. The reproducibility of the derivatization procedure was high. In addition, the max. sensitivity for 19 phenoxy acids, including 2,4-D, 2,4,5-T and MCPA, was high (0.1-0.3 ppm).

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