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 This paper describes the quantitative method of determination of chosen substances from resorcylic acid lactones group: zeranol, taleranol, α-zearalenol, β-zearalenol, and zearalanone in bovine muscle tissue. The presented method is based on double diethyl ether liquid-liquid extraction (LLE), solid phase extraction (SPE) clean up, and gas chromatography mass spectrometry (GC-MS) analysis. The residues were derivatised with a mixture of N-methyl-N-trimethylsilyltrifluoroacetamide, ammonium iodide, and DL-dithiothreitol (1,000:2:5, v/w/w). The GC-MS apparatus was operated in positive electron ionisation mode. The method was validated according to the European Union performance criteria pointed in Decision Commission 2002/657/EC. The average recoveries of all analytes at 1 μg kg-1 level were located between 83.7% and 94.5% values with the coefficients of variation values &lt;25%. The decision limits (CCα) and detection capabilities (CCβ) for all analytes ranged from 0.58 to 0.82 μg kg-1 and from 0.64 to 0.94 μg kg-1, respectively. The procedure has been accredited and is used as a screening and confirmatory method in control of hormone residues in animal tissues.
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This paper describes the quantitative method of determination of chosen substances from resorcylic acid lactones group: zeranol, taleranol, α-zearalenol, β-zearalenol, and zearalanone in bovine muscle tissue. The presented method is based on double diethyl ether liquid-liquid extraction (LLE), solid phase extraction (SPE) clean up, and gas chromatography mass spectrometry (GC-MS) analysis. The residues were derivatised with a mixture of N-methyl-N-trimethylsilyltrifluoroacetamide, ammonium iodide, and DL-dithiothreitol (1,000:2:5, v/w/w). The GC-MS apparatus was operated in positive electron ionisation mode. The method was validated according to the European Union performance criteria pointed in Decision Commission 2002/657/EC. The average recoveries of all analytes at 1 μg kg-1 level were located between 83.7% and 94.5% values with the coefficients of variation values <25%. The decision limits (CCα) and detection capabilities (CCβ) for all analytes ranged from 0.58 to 0.82 μg kg-1 and from 0.64 to 0.94 μg kg-1, respectively. The procedure has been accredited and is used as a screening and confirmatory method in control of hormone residues in animal tissues.

Determination of Zeranol and its Metabolites in Bovine Muscle Tissue with Gas Chromatography-Mass Spectrometry

Department of Pharmacology and Toxicology

Journal of Veterinary Research

This paper describes the quantitative method of determination of chosen substances from resorcylic acid lactones group: zeranol, taleranol, α-zearalenol,...

Determination of Zeranol and its Metabolites in Bovine Muscle Tissue with Gas Chromatography-Mass Spectrometry

Pubblicato online: 17 gen 2013

Pagine: 335 - 342

DOI: https://doi.org/10.2478/v10213-012-0059-4

Parole chiave
bovine muscle tissue, zeranol, GC-MS

This content is open access.

Determination of Zeranol and its Metabolites in Bovine Muscle Tissue with Gas Chromatography-Mass Spectrometry

Pubblicato online: 17 gen 2013

Pagine: 335 - 342

DOI: https://doi.org/10.2478/v10213-012-0059-4

Parole chiavebovine muscle tissue, zeranol, GC-MS

This content is open access.

Parole chiave
bovine muscle tissue, zeranol, GC-MS