摘要
目的建立罗汉果中六六六、滴滴涕的基质固相分散萃取(MSPD)-气相色谱(GC)分析方法.方法采用基质固相分散萃取技术作为前处理方法,用气相色谱法进行快速定性定量分析.结果八种有机氯农药的添加回收率在75.1%~112.4%之间,相对标准偏差为2.1%~12.4%之间.基质固相分散萃取将提取、过滤和净化一步完成,简化了传统样品的前处理过程,缩短了时间,节省溶剂,也减少了对环境的污染.结论该方法作为罗汉果中的六六六、滴滴涕有机氯农药残留的快速检测新方法,基本能满足国内以及国际对农药残留分析质量控制要求.
Objective To establish a method for the analysis of hexachlorocyclohexane (HCH) and di-chlorodiphenyl trichloroethane (DDT) by matrix solid phase dispersion-gas chromatography (MSPD-GC). Methods The samples were pretreated by matrix solid phase dispersion, and then qualitatively and quantita-tively determined byGC. Results The recoveries range from 75.1%to 112.4%, with the RSD of 2.1%~12.4%. The matrix solid phase dispersion can make extracting, filtering and cleaning in one step which made the sam-ple preparations become rapid. Conclusion The new method as the rapid analysis of organochlorine pesticide BHC and DDT in Siraitia grosvenori. fruits can basically meet the requirements of pesticide residue analysis standard in the domestic and international.
出处
《食品安全质量检测学报》
CAS
2013年第1期113-118,共6页
Journal of Food Safety and Quality
关键词
基质固相分散萃取
气相色谱
六六六
滴滴涕
罗汉果
matrix solid phase dispersion
gas chromatography
hexachlorocyclohexane(HCH)
dichlorodiphenyl trichloroethane(DDT)
Siraitia grosvenori. fruits
