固相萃取富集-高效液相色谱法测定土壤·水质中的莠去津

Determination of Atrazine in Enviroment Soil and Water by HPLC with Solid-phase Extraction

利用固相萃取富集-高效液相色谱法分析测定环境土壤、水体中三嗪类除草剂——莠去津（ATR）的含量。色谱柱为C18固相萃取柱，流动相为甲醇-水（60：40，体积），流速0．8ml／min，检测波长220nm，桂温25℃。莠去津在0．1～5．0mg／L（r=0．9995）范围内峰面积与进样量呈良好的线性关系，平均回收率为86．1％，RSD为3．7％。该法操作简便、快速，回收率较好。

A high performance liquid chromatographic method with solid-phase extraction was used for the determination of atrazine in environmental soil and water. HPLC was carried out on Cls column at 25℃ based on the application of methanol-water（60：40） as mobile phase with a flow rate of 0.8 ml/min and the detected wavelength was 220 nm, Good linearity of atrazine was obtained over the ranges of 0.1 - 5.0 mg/L（ r = 0.995 5）, The average recovery rate of atrazine was 86.1% （RSD3.7 % ）, This method was simple, quick, and the recovery rate was better.