中文摘要：本文构建了一个简单、经济、灵敏的液相色谱二极管阵列检测方法，并应用该方法同时检测豆浆中八种磺酰脲类除草剂（环氧嘧磺隆、甲磺隆、醚苯磺隆，砜嘧磺隆、绿磺隆、甲基二磺隆、酰嘧磺隆、苄嘧磺隆）残留。基于QuEChERS的提取方法性能良好，所有农药残留回收率在61-108%范围，相对标准差低于0.15。采用有效的氧化锆基吸附剂后，没有观察到显著的基质效应。食品中所有分析物的定量限为10 ng/mL。利用天然样本对本方法进行了评估。利用本方法检测出豆浆中绿磺隆的浓度为14.2 ng/mL，该结果通过液相色谱串联质谱法得到了验证。本研究同时对该方法的关键步骤进行了优化。
外文摘要：In this study authors propose a simple, cost-effective and sensitive liquid chromatography diode array detector (HPLC-DAD) method for the simultaneous determination of eight sulfonylurea herbicides (oxasulfuron, metsulfuron-methyl, triasulfuron, rimsulfuron, chlorsulfuron, mesosulfuron-methyl, amidosulfuron and bensulfuron-methyl) in soya milk samples. QuEChERS-based extraction procedure presents good performance for all of the analytes with recoveries in the range of 61-108% and relative standard deviations (RSD%) less than 15%. No significant matrix effect was observed thanks to application of effective zirconium-dioxide based sorbent (Z-Sep). Method LOQs for all investigated analytes were set at satisfactory low value of 10 ng mL(-1) of food product. The procedure was evaluated in terms of natural samples analysis. Chlorsulfuron was determined at concentration of 14.2 ng mL(-1) of soya milk product, which was qualitatively confirmed via LC coupled with tandem mass spectrometry (LC-MS/MS). The most important steps of procedure optimization are presented. (C) 2016 Elsevier B.V. All rights reserved..
外文关键词：Sulfonylurea herbicides, HPLC-DAD analysis, QuEChERS, Zirconium-dioxide based sorbent, Soya milk, Matrix effect
作者：Rejczak, Tomasz; Tuzimski, Tomasz
作者单位：Med Univ Lublin, Dept Phys Chem, Chair Chem, 4A Chodzki St, PL-20093 Lublin, Poland.
期刊名称：JOURNAL OF CHROMATOGRAPHY A
期刊影响因子：3.926
出版年份：2016
出版刊次：11
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