农药学学报2017,Vol.19Issue(5):609-616,8.DOI:10.16801/j.issn.1008-7303.2017.0084
分散固相萃取-气相色谱法测定含油食品中亚胺唑的残留
Determination of imibenconazole in fat-containing foods by dispersive solid phase extraction-gas chromatography
摘要
Abstract
A new method for detecting imibenconazole in fat-containing foods (walnut, peanut oil and red chilli powder) using gas chromatograph coupled with dispersive solid-phase extraction was developed. Imibenconazole in samples were extracted by acetonitrile and purified by PSA and C18. it was then qualitatively and quantitatively determined by GC with matrix standard curve-external standard method. The results showed that the good linearity has been achieved between chromatographic peak and concentration of imibenconazole in the range of 0.005-10 mg/L, the correlation coefficientr was greater than 0.99, and the limit of quantification (LOQ) was 0.05 mg/kg. At spiked levels of 0.05, 0.1, and 1 mg/kg, recoveries of imibenconazole in walnut, peanut oil and red chilli powder were 82%-107% and relative standard deviations were 3.0%-6.3%. Therefore, this method is suitable for the determination of imibenconazole in fat-containing foods.关键词
分散固相萃取/气相色谱/含油食品/亚胺唑/基质效应Key words
dispersive solid phase extraction/gas chromatography/fat-containing food/imibenconazole/matrix effects分类
化学化工引用本文复制引用
张文君,李慧冬,方丽萍,董崭,杜红霞,官帅,陈子雷..分散固相萃取-气相色谱法测定含油食品中亚胺唑的残留[J].农药学学报,2017,19(5):609-616,8.基金项目
山东省农业科学院重大科技成果培育计划 (2015CGPY04). (2015CGPY04)