引用本文:王玉祥,杨文武,朱小梅,张宗祥,陈军.水中阿特拉津测定的干扰消除研究[J].环境监控与预警,2018,10(5):30-32
WANG Yu xiang, YANG Wen wu, ZHU Xiao mei, ZHANG Zong xiang, CHEN Jun.Study on Interference Elimination of Atrazine Determination in Water[J].Environmental Monitoring and Forewarning,2018,10(5):30-32
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水中阿特拉津测定的干扰消除研究
王玉祥,杨文武,朱小梅,张宗祥,陈军1,2
1.江苏省泰州环境监测中心,江苏 泰州 225300;2.南京理工大学泰州科技学院,江苏 泰州 225300
摘要:
建立了使用硅胶净化小柱净化、氮磷检测器检测水中阿特拉津的方法。结果表明,经过硅胶柱净化后的生活污水,基本消除基质干扰。采用具有氮磷检测器的气相色谱仪检测阿特拉津,其质量浓度在0.10~2.0 mg/L范围内线性良好,相关系数R2=0.999,方法检出限为0.2 μg/L,测定下限为0.8 μg/L。空白样品加标回收率为90.0%~93.5%,实际样品加标回收率为88.5%~90.3%,相对标准偏差均<10%。该方法简单、快速、准确,可以消除阿特拉津测试中基质和同系物的干扰。
关键词:  阿特拉津  干扰  消除  气相色谱
DOI:
分类号:X832;O657.7+1
文献标识码:B
基金项目:2007年度国家环境保护标准制修订项目(917)
Study on Interference Elimination of Atrazine Determination in Water
WANG Yu xiang, YANG Wen wu, ZHU Xiao mei, ZHANG Zong xiang, CHEN Jun1,2
1.Jiangsu Taizhou Environmental Monitoring Center,Taizhou,Jiangsu 225300,China;2.Taizhou Institute of Sci.&Tech.,NUST., Taizhou,Jiangsu 225300,China
Abstract:
A method for detecting atrazine in water by means of silica gel purification column purifying- gas chromatography with nitrogen phosphorus detector was established. The results show that the waste water purified by silica gel purification column basically eliminates the matrix interference. Gas Chromatography with nitrogen phosphorus detector can better detect atrazine and distinguish homologues interference. The method showed good linearity in the mass concentration range of 0.10 to 2.00 mg/L, and the correlation coefficient R2=0.999. The detection limit of the method was 0.2 μg/L and the limit of quantitation was 0.8 μg/L. The recovery rates of blank samples and actual samples were 90.0%~93.5% and 88.5%~90.3%,the relative standard deviations were less than 10 %. This method is not only simple, fast and accurate to determine atrazine in water, but also can eliminate the interference of matrix and homologues.
Key words:  Atrazine  Interference  Elimination  Gas chromatography