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The metabolism, distribution, and elimination of cyadox (CYA) is investigated in pigs, chickens, carp, and rats to identify the marker residue and target tissue of CYA in food animals for food safety concerns. Following a single oral gavage of [(3)H]-CYA, the total radioactivity was rapidly excreted, with more than 95% of the dose excreted within 14 days in(More)
A rapid method using accelerated solvent extraction (ASE) and ultrasound enhanced derivatisation has been developed for the quantitative determination of metabolites of nitrofurans, namely 3-amino-2-oxalidinone (AOZ), 5-morpholinomethyl-3-amino-2-oxalidinone (AMOZ), 1-amino-hydantoin (AHD) and semicarbazide (SEM), in muscle and skin of carp and finless eel.(More)
A sensitive liquid chromatography with tandem mass spectrometry method was developed for the determination of 11 β-agonists (clenbuterol, salbutamol, ractopamine, terbutaline, fenoterol, cimaterol, isoxsuprine, mabuterol, mapenterol, clenproperol, and tulobuterol) in swine feed. This rapid, simple, and effective extraction method was based on matrix(More)
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