多壁碳纳米管固相萃取-气相色谱法测定水样中毒死蜱、丙溴磷、三唑磷  

Determination of chlorpyrifos,triazophos and profenofos in water by gas chromatography with solid-phase extraction using multi-walled carbon nanotubes as adsorbent

作　　者：杨敏[1] 海莱安佳 刘芳[2] 宋建平[2] 李杨梅[1] 谭伟[1] 王红斌[1] 李桂镇[1] 

机构地区：[1]云南民族大学化学与环境学院,云南昆明650500 [2]文山学院化学与工程学院,云南文山663000

出　　处：《云南大学学报（自然科学版）》2016年第3期464-470,共7页Journal of Yunnan University(Natural Sciences Edition)

基　　金：云南省名师工作室支持计划项目;云南民族大学-迪肯大学功能材料研究国际联合实验室;云南省高校民族地区资源清洁转化重点实验室(117-02001001002107);国家级高等学校大学生创新创业训练计划建设项目(2013011);云南省高校绿色化学新能源与材料科技创新团队项目(2011UY09)

摘　　要：通过优化固相萃取条件,建立了多壁碳纳米管固相萃取-气相色谱检测水样中毒死蜱、丙溴磷和三唑磷农药残留的分析方法.该方法在0.005~1.0 mg/L范围内具有良好的线性关系,相关系数大于0.999 3,3种农药的检出限在2.69×10^(-4)~7.43×10^(-4)mg/L之间.采用该方法对实际水样进行检测,在0.005、0.01、0.05 mg/L 3个添加水平下,3种农药的平均回收率在72.3%~116.7%之间,RSD值小于13.6%,符合农药残留分析的要求.A method based on multi-walled carbon nanotubes as the solid phase extraction material had been developed for the determination of chlorpyrifos,triazophos and profenofos in water by solid phase extraction-gas chromatography.The results showed that these pesticides had a good linearity in the range of 0.005-1.0 mg / L and the correlations were greater than 0.999 3.The limits of detection were 2.69×10^-4-7.43×10^-4mg / L.The recoveries rates were between 72.3% and 116.7% with RSD less than 13.6% in 0.005,0.01,0.05 mg / kg three different added amount.The method meet the requirements of pesticide residue analysis.

关 键 词：多壁碳纳米管 固相萃取 气相色谱 有机磷农药 

分 类 号：O657.7[理学—分析化学] X832[理学—化学]