摘要
建立了柿果实中菊酯类农药的提取及气相色谱测定方法。柿果实样品不经柱净化处理,采用恒温恒流气相色谱法测定的回收率为90.82%～96.83%,变异系数为1.04%～4.60%(n=5),最小检出限为0.001～0.006mg/kg,测定效果优于净化处理及程序升温测定,可以满足柿果实等材料中菊酯类农药残留量测定的质量要求。
A method for extracting and determining residues of pyrethrins in persimmon has been developed.The pyrethrins were extracted from the persimmon with petroleum and acetone without clean up, separated through SPB- 50 capillary column（30 m × 0.32 mm i.d., 0.25 μm） and determined by GC with electron capture detector. There recoveries of fenpropathrin, cyhalothrin, cyperopathrin, fenvalerate and deltamethrin were 90.82-96.83%, The relative standard deviations were in the range of 1.04-4.60%（n=5）. The detection limit was 0.001-0.006 mg/kg.
出处
《农药》
CAS
北大核心
2007年第3期178-181,共4页
Agrochemicals
基金
科技部社会公益研究专项(106)
浙江省科技厅项目(2004C32073)
关键词
柿子
菊酯农药残留
气相色谱法
persimmon
pyrethrins residuces
gas chromatography
