GC Determination of 2,4-Dichloro-6-nitrophenol and Pentachlorophenol in Fishpond Water
摘 要
鱼塘水中残留的2种除草剂(2,4-二氯-6-硝基苯酚和五氯酚)经GDX201固相萃取柱富集后,用二氯甲烷洗脱,洗脱液用N-(叔丁基二甲硅烷基)-N甲基三氟乙酰胺衍生化,所得衍生化产物溶于乙酸乙酯中,用气相色谱法测定,从而获得上述2种除草剂的含量。2,4-二氯-6-硝基苯酚和五氯酚的峰面积与其质量浓度均在10~200 μg·L-1内呈线性关系,检出限(3S/N)分别为0.09 μg·L-1和0.16 μg·L-1。以鱼塘水为基体进行加标回收试验,测得回收率依次为98.3%,98.6%;测定值的相对标准偏差(n=5)分别为3.6%和4.3%。
Abstract
Two residual herbicides, i.e., 2,4-dichloro-6-nitrophenol and pentachlorophenol, in sample of fishpond water were enriched by SPE on GDX201 column, and eluted with methylene chloride. The eluate obtained was then derivatized with N-(tert-butyldimethylsilyl)-N-methyl-trifluoroacetamide, and the derivatized products in ethyl acetate were determined by GC, from which contents of the 2 herbicides were obtained. Linear relationships between values of peak area and mass concentration of 2,4-dichloro-6-nitrophenol and pentachlorophenol were obtained in the same range of 10-200 μg·L-1, with limits of detection (3S/N) of 0.09 μg·L-1 and 0.16 μg·L-1 respectively. Tests for recovery and precision were made by standard addition method using fishpond water as matrix, giving values of average recovery of 98.3% for 2,4-dichloro-6-nitrophenol, and 98.6% for pentachlorophenol with RSD′s (n=5) of 3.6% and 4.3% respectively.
中图分类号 O657.7
所属栏目 工作简报
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收稿日期 2011/4/12
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备注陈祥国(1976-),男,河南台前县人,工程师,硕士研究生,主要从事理化检验工作。
引用该论文: CHEN Xiang-guo,JIANG Zhao-lin,WANG Shu-zhen,Lv Ji-zhong,ZHANG Yin-hua. GC Determination of 2,4-Dichloro-6-nitrophenol and Pentachlorophenol in Fishpond Water[J]. Physical Testing and Chemical Analysis part B:Chemical Analysis, 2012, 48(5): 587~589
陈祥国,姜兆林,王淑真,吕纪忠,张银华. 气相色谱法测定鱼塘水中2,4-二氯-6-硝基苯酚和五氯酚含量[J]. 理化检验-化学分册, 2012, 48(5): 587~589
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参考文献
【1】王旭刚,孙丽蓉.五氯酚的污染现状及其转化研究进展[J].环境科学与技术, 2009,32(8):93-100.
【2】李昌吉,詹承烈,唐成智,等.2,4-二氯-6-硝基酚胺盐的眼刺激实验研究[J].中华劳动卫生职业病杂志, 1989,7(8):146-148.
【3】线引林.紫生物材料中有毒物质分析方法手册[M].北京:人民卫生出版社, 1994:298-302.
【4】肖振林,丛俏,曲蛟,等.紫外分光光度法测定土壤中五氯酚[J].理化检验-化学分册, 2010,46(6):660-662.
【5】端礼钦,王静,刘孝德,等.气相色谱内标法测定水产品中五氯酚[J].理化检验-化学分册, 2011,47(11):1307-1309.
【6】孙雅峰,潘文碧,井晶,等.SPE-GC/MS法检测水体中五氯酚残留[J].浙江化工, 2010,41(12):23-25.
【7】乔素兰,雷萍.固相萃取-高效液相色谱法测定水中痕量酚[J].中国给水排水, 2008,24(2):78-80.
【2】李昌吉,詹承烈,唐成智,等.2,4-二氯-6-硝基酚胺盐的眼刺激实验研究[J].中华劳动卫生职业病杂志, 1989,7(8):146-148.
【3】线引林.紫生物材料中有毒物质分析方法手册[M].北京:人民卫生出版社, 1994:298-302.
【4】肖振林,丛俏,曲蛟,等.紫外分光光度法测定土壤中五氯酚[J].理化检验-化学分册, 2010,46(6):660-662.
【5】端礼钦,王静,刘孝德,等.气相色谱内标法测定水产品中五氯酚[J].理化检验-化学分册, 2011,47(11):1307-1309.
【6】孙雅峰,潘文碧,井晶,等.SPE-GC/MS法检测水体中五氯酚残留[J].浙江化工, 2010,41(12):23-25.
【7】乔素兰,雷萍.固相萃取-高效液相色谱法测定水中痕量酚[J].中国给水排水, 2008,24(2):78-80.
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