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An ultra-fast analytical protocol using graphene-based solid-phase extraction coupled with ultra-performance liquid chromatography–tandem mass spectrometry for the rapid determination of malachite green and its metabolite, leucomalachite green in fish tissues has been developed. In the present work, graphene was synthesized and evaluated as novel solid-phase extraction sorbents for the analytes enrichment...
A simple and effective multi‐residue analysis method is presented for the extraction and determination of eleven quinolones (pipemidic acid, enoxacin, norfloxacin, ciprofloxacin, lomefloxacin, enrofloxacin, gatifloxacin, difloxacin, oxolinic acid, nalidixic acid and flumequine) in fish tissues. In this study, multi‐residue separations on four columns packed with 5 μm or sub‐2 μm particles were simultaneously...
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