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当前位置: 首页 > 文章 > 高效液相色谱法测定水体和茶汤中硫氟肟醚的残留量 农药 2008,47 (12) 43-45
Position: Home > Articles > Determination of HNPC-A2005 Residue in Environmental Aquatic Samples and Tea Soup by HPLC Agrochemicals 2008,47 (12) 43-45

高效液相色谱法测定水体和茶汤中硫氟肟醚的残留量

作  者：
蔡德玲;欧晓明;陈九星;陈力华;汪传刚;步海燕;黄明智;司士辉
单  位：
中南大学化学;湖南化工研究院;华中师范大学
关键词：
杀虫剂;硫氟肟醚;水样;茶汤;残留分析;高效液相色谱
摘  要：
采用KromasilC18不锈钢柱(150mm×4.6mmi.d.,5μm),以甲醇-水混合溶剂(体积比95∶5)为流动相,流速1.0mL/min,光电二极管阵列检测器,检测波长254nm,柱温35℃,建立了水体和茶汤中硫氟肟醚残留的高效液相色谱分析方法。硫氟肟醚水样直接用二氯甲烷进行液-液分配萃取,茶汤采用正己烷-丙酮(体积比1∶1)萃取。在0.01～5.0mg/L质量浓度范围内,硫氟肟醚峰面积与质量浓度呈现良好的相关性。当井水、池塘水、河水和茶汤中添加质量浓度为0.01～1.00mg/L硫氟肟醚时,其平均回收率分别为92.59%～100.10%、94.77%～100.68%、91.87%～101.06%、88.94%～99.46%,变异系数分别为0.98%～2.32%、1.46%～3.09%、2.45%～3.94%、1.40%～3.97%。
译  名：
Determination of HNPC-A2005 Residue in Environmental Aquatic Samples and Tea Soup by HPLC
作  者：
CAI De-ling1,OU Xiao-ming2,CHEN Jiu-xing2,CHEN Li-hua2,WANG Chuan-gang2,BU Hai-yan3,HUANG Ming-zhi2,SI Shi-hui1(1.College of Chemistry and Chemical Engineering,Central South University,Changsha 410083,China;2.National Engineering Research Center for Agrochemicals,Hunan Research Institute of Chemical Industry,Changsha 410007,China;3.College of Chemistry,Central China Normal University,Wuhan 430079,China)
关键词：
insecticide;HNPC-A2005;water;tea soup;residue analysis;HPLC
摘  要：
A quantitative high performance liquid chromatography method has been developed for the determination of HNPC-A2005 residues in the environmental aquatic system using photodiode array detector.HNPC-A2005 was extracted by liquid-liquid partition from water samples into dichloromethane,and from tea soup samples into acetone-hexane(1:1,by vol).The analysis was performed on a Kromasil C18 stainless steel column(150 mm×4.6 mm i.d.,5 μm) with mixture of methanol-water(95:5,by vol) as the mobile phase at a flow rate of 1.0 mL/min,at the column temperature of 35 °C and the ultraviolet detection wavelength 254 nm.The calibration curve for HNPC-A2005 was in good linearity within the concentration range of 0.010-5.0 mg/L.The average recovery of five spiked concentra-tion levels for HNPC-A2005 in well water,pond water,river water and tea soup was 92.59-100.10%,94.77-100.68%,91.87-101.06% and 88.94-99.46%,respectively,and its corresponding coefficient of variation(CV) was 0.98-2.32%,1.46-3.09%,2.45-3.94% and 1.40-3.97%.

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