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  • Title: Confirmation of four nitroimidazoles in porcine liver by liquid chromatography-tandem mass spectrometry.
    Author: Xia X, Li X, Zhang S, Ding S, Jiang H, Shen J.
    Journal: Anal Chim Acta; 2007 Mar 14; 586(1-2):394-8. PubMed ID: 17386739.
    Abstract:
    A sensitive and reliable multiresidue method is described for analysis of ronidazole, metronidazole, dimetridazole and the common metabolite of ronidazole and dimetridazole, 2-hydroxymethyl-1-methyl-5-nitroimidazole in swine liver. The sample preparation procedure was based on liquid-liquid extraction and mixed mode cation exchange/reverse phase solid-phase extraction. The compounds of interest were determined by reverse phase gradient liquid chromatography separation and tandem mass spectrometry (MS/MS) in the multiple reaction monitoring (MRM) mode. The limits of confirmation were 0.1-0.5 microg kg(-1) for the analytes.
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