噻霉酮在黄瓜和土壤中的残留分析方法  

Residue Analysis of Benziothiazolinone in Cucumber and Soil

作　　者：于福利[1] 刘伟[1] 雷琪[1] 

机构地区：[1]农业部农药质量监督检验测试中心,西安710003

出　　处：《农药》2009年第2期130-131,共2页Agrochemicals

基　　金：农业部农药检定所残留项目(2007F007)

摘　　要：研究并建立了噻霉酮在黄瓜和土壤中的残留分析方法。黄瓜和土壤样品分别用丙酮和二氯甲烷提取,固相萃取(SPE)净化,液相色谱(LC)测定。噻霉酮的最小检测量为1.0×10-9g,黄瓜和土壤中的最低检出质量分数均为0.01mg/kg。在0.5～5.0mg/kg的添加质量分数下,土壤中噻霉酮的平均添加回收率为85.9%～97.2%,变异系数为2.2%～3.8%;黄瓜中的平均添加回收率为89.2%～97.6%,变异系数为1.5%～2.4%。A method was established for determining benziothiazolinone residues in cucumber and soil. Residues were extracted with acetone and dichloromethane, purified by SPE cartridge, and determined with LC equipped by UV detector. The average recoveries and coefficient of variations of the method were 89.2-97.6%, 1.5-2.4% for cucumber samples, and 85.9-97.2%, 2.2-3.8% for soil sample, respectively. The minimum detectable amount of benziothiazolinone were 1.0× 10^-9g, and the minimum detectable mass fraction were 0.01 mg/kg, respectively.

关 键 词：噻霉酮 黄瓜 土壤 残留分析 

分 类 号：TQ450.263[化学工程—农药化工]