摘要
以二氯甲烷液-液萃取水样,采用CP-SIL 5 CB毛细管柱气相色谱法分析测定了地表水样品中的9种有机磷农药残留量。结果表明,该方法的检出限范围为8.43×10^-3-4.41×10^-2μg/L,加标平均回收率为80.8%-114.5%,RSD为2.90%-7.72%,降低了测试成本,为地表水样品有机磷农药残留的测定提供了一套实用的检测方法。
In the lab test the water samples were extracted by dichloromethane -liquid extraction and the residual quantity of 9 kinds of organic phosphorous pesticide in earth surface water samples was determined by CP-SIL 5 CB Capillary Column. Results showed that the detection limit of this method was in 8.43 x 10- 3 μg/L -4.41 × 10^-2μg/L, the average recovery was in 80.8 % - 114.5 % and RSD was in 2.90% - 7.72 %, which decreased the tested cost and provided a suit of practical method for determining the residual of organic phosphorous pesticide in earth surface water samples.
出处
《安徽农业科学》
CAS
北大核心
2007年第16期4881-4882,共2页
Journal of Anhui Agricultural Sciences
关键词
毛细管柱
气相色谱法
有机磷农药
地表水
Capillary colmnn
Gas chrormtography
Organic phosphorous pesticide
Earth surface water
