Herbicide Residues in Seafood, Determination of Butoxyethanol Ester of 2,4-Dichlorophenoxyacetic Acid in Shellfich and Fish

Coakley, James E.; Campbell, James P.; McFarren, Earl F.

doi:10.1021/jf60133a023

Cited by 7 publications

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“…chlorophenoxyacetic acid (2,4-D) and 2,4,5-trichlorophenoxyacetic acid (2,4,5-T) (Hildebrand, 1946), are well known for their herbicidal activity. Gas chromatography was used for the measurement of 2,4-D in citrus fruit (Erickson and Hield, 1962;Meagher, 1966), in forage plants (Hagin and Linscott, 1965), and in fish (Coakley et al, 1964); 2,4,5-T in apricots (Crane et al, 1965); and 2,4,5-trichlorobenzoic acid in soil and plants (Kirkland and Pease, 1964). Clark and his coworkers (1967) recently measured 2,4-dichlorophenol following hydrolysis of 2,4-D in extracts from sheep body tissue by the same technique.…”

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Gas chromatographic measurement of disappearance rates of 2,4-D and 2,4,5-T acids and 2,4-D esters in mice

Zielinski¹,

Fishbein²

1967

J. Agric. Food Chem.

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The rates of disappearance of 2,4-D and 2,4,5-T acids and 2,4-D butyl and isooctyl esters were followed by electron-capture gas chromatographic analysis of extracts from whole mice. The data revealed the disappearance of esters was more rapid than the free acids, with the butyl ester rate greater than the octyl ester. A relatively prolonged body residence time was observed for 2,4,5-T. No 2,4dichlorophenol was detected in the analyses of animals which had been injected with 2,4-D acid or its butyl or isooctyl esters. Pretreatment with the same herbicide revealed an enhanced disappearance rate only for the 2,4-D butyl ester.Ester derivatives, and the free acid forms of 2,4-di-

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confidence: 99%