摘要
建立了以二氯甲烷-N,N-二甲基甲酰胺(体积比1∶1)为提取剂,二十一烷为内标,N-甲基-N-三甲基硅烷基三氟乙酰胺(MSTFA)为衍生化试剂,气质联用(GC-MS)测定手印残留物质中油脂成分的分析方法。系统地考察了该方法的回收率、重复性、检出限(0.5 ng)及线性关系。采用的衍生化试剂MSTFA可在室温下衍生迅速、完全。
A GC - MS method with derivatization for the analysis of lipid composition in fingerprint residue was established. Sample was extracted with mixture of methylene chloride - N, N-dimethyl- formamide （ 1 ： 1, by w）lume） , added heneieosane as internal standard, and then derivatized with N- methyl-N-（trimethylsilyl） trifluoroacetamide （MSTFA）. The method was evaluated by its recovery., repeatability, detection limit （0. 5 ng） and linear equation, and the whole results were satisfactory. This method is sensitive, simple and can be quickly derivatized under room temperature.
出处
《分析测试学报》
CAS
CSCD
北大核心
2008年第8期878-880,共3页
Journal of Instrumental Analysis
基金
北京市教育委员会共建项目建设计划资助项目
北京市科技新星计划资助项目(2006B64)
公安部应用创新项目(2006YYCXGADX068)
国家科技支撑计划资助项目(2007BAK26B08)
霍英东教育基金资助项目(111092)
关键词
手印
油脂
衍生化
气质联用
fingerprint
lipid
derivatization
GC - MS
