武汉建筑用地三种特征土壤吡虫啉回收率试验

Determination of Recovery Rates of Imidacloprid in three Characteristics of Wuhan Architecture Soils by HPLC

采用甲醇振荡提取-高效液相色谱法测定（HPLC），对白蚁防治药剂吡虫啉在武汉建筑用地3种特征土壤中的残留量进行阳性添加和回收率测定试验。结果表明：吡虫啉在各种土壤中回收率和变异系数分别为潮土73．7％～78．8％，2．2％～3．4％，红棕壤67．8％～72．2％，2．8％～4．5％，黄棕壤66．4％～70．1％，2．5％～3．8％。

The Determination of Recovery Rates of Imidacloprid in three Characteristics of Wuhan Architecture Soils by Methanol oscillation extraction-- HPLC method. The determination results indicated that the recovery rates and CV of Imidacloprid are 73.7%-78.8% and 2.2% - 3.4% for chao soil,67.8%-72.2% and2.8%-4.5%for red brown soil, 66.4 % - 70.1% and 2.5 % - 3.8 % for yellow brown soil, respectively.