Analysis Method for Measuring Hexaflumuron Residue in Cabbage and Cabbage Planting Soil

In order to quickly and accurately measure the residues of hexaflumuron and its related preparations in cabbage and guide the scientific use of them,an analysis method for measuring the residues of hexaflumuron in cabbage and cabbage planting soil was established based on recovery experiment and HPLC.The results showed that: the hexaflumuron in the samples of cabbage and cabbage planting soil all can be extracted with acetonitrile,then it was cleaned up by a Florisil column and was measured by HPLC;the average recovery rate of hexaflumuron in cabbage and cabbage planting soil ranged from 82.73% to 85.56% with the relative standard deviations of 1.25%~4.65% when adding concentration of hexaflumuron was 0.05~1.00 mg/kg.Therefore,the sensitivity,the accuracy and the precision of this analysis method all meet the requirements of analyzing and measuring pesticide residues.