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Analysis of 2,4-D Residues in Milk and Forage

  • George Yip and Ronald E. Ney

Abstract

A microcoulometric gas chromatographic method with a sensitivity of 0.01 ppm is described for the analysis of 2,4-dichlorophenoxyacetic acid (2,4-D) in milk and forage. The method will analyze 2,4-D as the acid, ester, and bound form from a single sample. Results show the superiority of this method over previous procedures. The formation of 2,4-D ethyl ester from the butyl ester in forage is discussed.

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Analysis of 2,4-D Residues in Milk and Forage

  • George Yip and Ronald E. Ney

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