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水中三氯杀螨醇和拟除虫菊酯的气相色谱测定法
引用本文:周学猛,段江平,孙仕萍.水中三氯杀螨醇和拟除虫菊酯的气相色谱测定法[J].环境与健康杂志,2009,26(1).
作者姓名:周学猛  段江平  孙仕萍
作者单位:唐山市疾病预防控制中心理化检验科,河北,唐山,063000
摘    要:目的建立同时测定水中三氯杀螨醇和7种拟除虫菊酯的气相色谱(GC)测定方法。方法水中的微量三氯杀螨醇和拟除虫菊酯经液-液萃取后,利用DB-1型毛细管色谱柱,在程序升温条件下进行GC分析,以保留时间定性,外标法定量。结果三氯杀螨醇、联苯菊酯、甲氰菊酯、氯氟氰菊酯、氯菊酯、氟氯氰菊酯、氯氰菊酯、氰戊菊酯的线性范围分别为0.24~31.1、0.21~27.2、0.20~26.0、0.21~26.5、0.20~25.7、0.21~26.4、0.22~29.0、0.22~27.4μg/L,相关系数≥0.9990,最低检测浓度分别为0.20、0.33、0.30、0.13、0.36、0.26、0.33、0.30μg/L,该方法的平均加标回收率为86.0%~111.7%,RSD为3.8%~11.8%。结论该方法操作简便、灵敏度高,适合于生活饮用水中三氯杀螨醇和7种拟除虫菊酯的同时测定。

关 键 词:  三氯杀螨醇  拟除虫菊酯  液-液萃取  色谱法  气相

Determination of Kelthane and Pyrethroid Pesticide Residues in Water by Capillary Column Gas Chromatography
ZHOU Xue-meng,DUAN Jiang-ping,SUN Shi-ping.Determination of Kelthane and Pyrethroid Pesticide Residues in Water by Capillary Column Gas Chromatography[J].Journal of Environment and Health,2009,26(1).
Authors:ZHOU Xue-meng  DUAN Jiang-ping  SUN Shi-ping
Institution:ZHOU Xue-meng,DUAN Jiang-ping,SUN Shi-ping.Tangshan Centers for Disease Control , Prevention,Tangshan,Hebei 063000,China
Abstract:Objective To establish a method for simultaneous determination of kelthane and pyrethroid pesticide residues in water.Methods Kelthane and pyrethroid pesticide residues in the water were extracted by liquid-liquid,then analyzed with DB-1 capillary column.In the same time,they were determined with GC by controlling the temperature.Retention time of the peaks was used for qualitative analysis,while external standard method was used for quantitative analysis.Results The linear ranges of Kelthane,Bifenthrin,Fen...
Keywords:Water  Kelthane  Pyrethroid pesticide  Liquid-liquid extraction  Chromatography  gas  
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