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Intra injector formation of methyl esters from phenoxy acid pesticides

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

Trimethylanilinium hydroxide was used as a derivatized agent for a broad range of phenoxy acids. Derivatization took place inside the injector immediately before gas chromatographic analysis, thereby minimizing the chance of exposing the operator to trimethylanilinium hydroxide. The reproducibility and sensitivity of the derivatization procedure were high. Maximum sensitivity for 19 phenoxy acids was 0.1-0.3 ppm. Derivatization was quantitative and did not produce by-products. The procedure required a minimum of time and effort compared with other derivatization methods in current use and is recommended for routine determinations of phenoxy acids.

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Related references

Brondz, I.; Olsen, I., 1992: Intra-injector formulation of methyl esters from phenoxy acid pesticides. 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 minim...

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