摘要
建立了7%右旋苯氰菊酯杀虫烟雾剂的超声萃取前处理方法和气相色谱分析方法。样品溶于含有内标物的丙酮中,经超声波萃取后,用SE-30玻璃填充柱分离并用火焰离子化检测器测定右旋苯氰菊酯。考查了萃取温度和萃取时间对萃取效果的影响。方法变异系数为0.6%,回收率在98%￣103%之间。
A method was established for determination of a 7% d-cyphenothrin insecticidal aerosol using an ultrasound extraction pretreatment followed by gas chromatography （GC）. The sample was dissolved with acetone containing an internal marker. After ultrasonic extraction, d-cyphenothrin in the sample solution was separated in a glass column packed with SE-30 and determined by flame ionization detection （FID）. The influence of extraction time and temperarare on the amount extracted was also determined. Relative standard deviation was 0.6%, and recoveries were between 98 and 103%.
出处
《农药》
CAS
北大核心
2006年第1期38-39,共2页
Agrochemicals
