摘要
建立了大白菜、甘蓝和西兰花3种蔬菜中的锐劲特残留量分析方法.以乙腈为提取溶剂,使用弗罗里硅土SPE小柱净化,最后利用GC-ECD进行检测,仪器最小检测量为5×10-13 g,最低检出浓度为0.0005 mg/kg.在大白菜中平均回收率为85.11%～89.81%,RSD为3.8%～6.8%;甘蓝中平均回收率为91.39%～102.92%,RSD为5.2%～8.3%;西兰花中平均回收率达到91.92%～101.64%,RSD为4.5%～6.8%.
A method for the determination of fipronil residues in Chinese cabbage, cabbage and cauliflower with acetonitrile as an extractive solvent and GC-ECD as a detector was developed. The detection limit was 5 × 10^-13 g The lowest concentration of determination was 0.0005 mg/kg. The average recoveries and variation coefficients of fipronil in Chinese cabbage were 85.11% - 89.81% and 3.8 % - 6.8 % ; The average recoveries and variation coefficients of fipronil in cabbage were 91.39% - 102.92% and 5.2% - 8.3% ; The average recoveries and coefficient of variation of fipronil in Chinese cabbage were 91.92% - 101.64% and 4.5% -6.8%.
出处
《分析试验室》
CAS
CSCD
北大核心
2006年第11期93-95,共3页
Chinese Journal of Analysis Laboratory
基金
宁波市重大农业科技计划项目(2002C1000)
