Article ID Journal Published Year Pages File Type
1201104 Journal of Chromatography A 2013 8 Pages PDF
Abstract

This paper presents a sensitive and confirmatory multi-residue method for the analysis of 23 veterinary drugs and metabolites belonging to three classes (nitroimidazoles, benzimidazoles, and chloramphenicols) in porcine muscle, liver, and kidney. After extracted with ethyl acetate and basic ethyl acetate sequentially, the crude extracts were defatted with hexane and further purified using Oasis MCX solid-phase extraction cartridges. Rapid determination was carried out by ultra-high performance liquid chromatography–electrospray ionization tandem mass spectrometry. Data acquisition was performed under positive and negative mode simultaneously. Recoveries based on matrix-matched calibrations for meat, liver, and kidney ranged from 50.6 to 108.1%. The method quantification limits were in the range of 3–100 ng/kg.

► A reliable method for determination of three classes of drugs in swine tissues. ► The sensitivity of the method can be obtained at ng/kg level (ppt). ► Electrospray ionization was performed at positive and negative mode simultaneously.

Related Topics
Physical Sciences and Engineering Chemistry Analytical Chemistry
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