Identification of medicinal additives in animal feedingstuffs by high-performance liquid chromatography |
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| Authors: | M K Cody G B Clark B O Conway N T Crosby |
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| Affiliation: | Department of Trade and Industry, Laboratory of the Government Chemist Middlesex, UK. |
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| Abstract: | A method is described for the detection of 25 drugs used as prophylactics or as growth promoters in commercial animal feedingstuffs. The sample was extracted with aqueous acetonitrile, the co-extractives were removed with a silica cartridge and the eluate was examined by high-performance liquid chromatography, using two columns and five mobile phases. Thirteen animal ++feedingstuffs containing different combinations of drugs were prepared and used to test the method. |
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