Application of metal-organic framework MIL-101(Cr) to microextraction in packed syringe for determination of triazine herbicides in corn samples by liquid chromatography-tandem mass spectrometry
作者： Yanxiao Jiang , Pinyi Ma , Xinpei Li , Huilan Piao , Dan Li
DOI: 10.1016/J.CHROMA.2018.09.008
关键词: Mass spectrometry 、 Triazine 、 Liquid chromatography–mass spectrometry 、 Elution 、 Extraction (chemistry) 、 Sorbent 、 Detection limit 、 Prometon 、 Chromatography 、 Chemistry
摘要: Abstract In this work, a metal-organic framework material MIL-101(Cr) was prepared and used as the sorbent for laboratory-made semi-automated microextraction in packed syringe (MEPS). Six triazine herbicides, including desmetryn, prometon, ametryn, prometryn, atraton, dipropetryn, that are commonly found corn samples, were extracted determined by MEPS method high performance liquid chromatography-tandem mass spectrometry (HPLC-MS/MS). Key parameters affecting extraction efficiencies, type of solvent, amount sorbent, time ultrasonic adsorption, type, volume flow rate elution investigated. The limits detection (LODs, S/N = 3) quantification (LOQs, S/N = 10) all analytes obtained proposed ranges 0.01–0.12 ng g−1 0.04–0.35 ng g−1, respectively, which far lower than reported methods. findings indicated easy efficient herbicides samples.
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