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Issue 7, 1985
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Determination of methyl benzoquate in poultry feedingstuffs using high-performance liquid chromatography

George H. J. Merson,  Lesley A. Hill  and  Steven F. Johnson 

Abstract

A high-performance liquid chromatographic (HPLC) method for the determination of methyl benzoquate in poultry feedingstuffs is described. Methyl benzoquate is extracted from the feedingstuff with 2% methanesulphonic acid in methanol and the extract partially purified by partition into dichloromethane from hydrochloric acid solution. Major feed interferences are removed by ion-exchange chromatography followed by a second partition into dichloromethane. The methyl benzoquate content of the sample extract is determined by HPLC on an octadecylsilane column. Using this procedure, a mean recovery of greater than 95% was obtained for a range of poultry feeds medicated at 5 and 10 mg kg–1. For a feed medicated at 1 mg kg–1 the mean recovery was 93%.

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Article type: Paper
DOI: 10.1039/AN9851000761
Citation: Analyst, 1985,110, 761-764
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    Determination of methyl benzoquate in poultry feedingstuffs using high-performance liquid chromatography

    G. H. J. Merson, L. A. Hill and S. F. Johnson, Analyst, 1985, 110, 761
    DOI: 10.1039/AN9851000761

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