title: Simultaneous determination of residual veterinary drugs in bovine, porcine, and chicken muscle using liquid chromatography coupled with electrospray ionization tandem mass spectrometry.
abstract: A simple and rapid method using liquid chromatography coupled with electrospray ionization tandem mass spectrometry (LC/MS/MS) for the simultaneous determination of 130 veterinary drugs and their metabolites in bovine, porcine, and chicken muscle was developed. The drugs (1 to 10 ng/g, in muscle) were extracted from bovine, porcine, or chicken muscles with acetonitrile-methanol (95:5, v/v), and the extracts were delipidated with n-hexane saturated with acetonitrile. The extracts were evaporated, dissolved with methanol, analyzed by liquid chromatography with gradient elution on a C18 column, and determined by electrospray ionization tandem mass spectrometry. The detection limits ranged from 0.03 to 3 ng/g. The quantitation limits ranged from 0.1 to 10 ng/g. One hundred eleven, 122, and 123 drugs from bovine, porcine, and chicken muscle respectively showed recoveries between 70 and 110%.
authors.affiliation: Research and Development Center, Nippon Meat Packers, Inc, Ibaraki, Japan.
authors.forename: Ryoji
authors.initials: R
authors.lastname: Yamada
authors.forename: Masaki
authors.initials: M
authors.lastname: Kozono
authors.forename: Takashi
authors.initials: T
authors.lastname: Ohmori
authors.forename: Fumiki
authors.initials: F
authors.lastname: Morimatsu
authors.forename: Masahiko
authors.initials: M
authors.lastname: Kitayama
mesh_terms: D000818:Animals; D002417:Cattle; D002645:Chickens; D002853:Chromatography, Liquid; D004350:Drug Residues / Q000032:analysis* / Q000737:chemistry / Q000493:pharmacokinetics; D009132:Muscles / Q000737:chemistry*; D021241:Spectrometry, Mass, Electrospray Ionization; D013552:Swine; D019155:Veterinary Drugs / Q000032:analysis* / Q000737:chemistry / Q000493:pharmacokinetics
chemical_list: D019155:Veterinary Drugs