改进的QuEChERS法测定大豆中三嗪类除草剂

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英文篇名：A Modified Quick,Easy,Cheap,Effective,Rugged and Safe Method for the Determination of Triazine Herbicides in Soybean Sample 作者：赵瑶瑶 ; 季慧宁 ; 马莹 ; 周庆瑶 ; 葛绘春 ; 张丽媛 英文作者：Zhao Yaoyao;Ji Huining;Ma Ying;Zhou Qingyao;Ge Huichun;Zhang Liyuan;College of Food,Heilongjiang Bayi Agricultural University;College of Chemistry,Jilin University; 关键词：QuEChERS法 ; 萃取 ; 净化 ; 三嗪除草剂 ; 大豆 英文关键词：QuEChERS method;;extraction;;purification;;triazine herbicides;;soybean 中文刊名：SYKZ 英文刊名：Modern Salt and Chemical Industry 机构：黑龙江八一农垦大学食品学院;吉林大学化学学院; 出版日期：2016-04-15 出版单位：现代盐化工 年：2016 期：v.43;No.168 基金：黑龙江省大学生创业创新训练项目,项目编号:201510223013;; 黑龙江省自然基金面上项目,项目编号:B2015010 语种：中文; 页：SYKZ201602019 页数：4 CN：02 ISSN：32-1852/TS 分类号：49-52

摘要

为了得到有效的净化分离和萃取方法,对经典QuEChERS法进行改进。建立大豆中三嗪除草剂萃取、净化的新型QuEChERS法,高效液相色谱法对其进行检测。考察萃取剂类型、用量,吸附剂类型、用量,样品溶液pH值以及萃取时间等对萃取、净化效果的影响。在最有条件下,该方法线性关系良好,西玛通、草净津、敌草净、特丁通、特丁津的检出限分别是5.0,6.4,8.5,5.9和4.8μg/kg,回收率在93.1-107.8%之间,相对标准偏差低于5.6%。
        The classic Quick, Easy, Cheap, Effective, Rugged and Safe method was improved in order to get effective purification, separation and extraction method. A new type method was developed to extraction and purification of triazine herbicides from soybean sample. The high performance liquid chromatography was applied to the determination of the herbicides. The influence factors, including the effect of extraction agent, the effect of adsorbent, pH value of sample solution and extraction time, were investigated. Under the optimized experimental conditions, the linearities for determining the analytes were good. The limits of detection for simeton, cyanazine,desmetryn,terbumeton and terbuthylazine were 5.0, 6.4, 8.5, 5.9, and 4.8 μg/kg, respectively. When the present method was applied to the analysis of four soybean samples, the recoveries of the analytes ranged from 93.1% to 107.8% and relative standard deviations were lower than 5.6%.

引文

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