毛细管气相色谱法测定N-甲基咪唑的含量  

Determination of the Content of N-Methylimidazole by Capillary Gas Chromatography

作　　者：李继民[1] 王彦吉[2] 赵彦军[1] 邹宁[1] 

机构地区：[1]中国刑警学院法医系,辽宁沈阳110035 [2]中国人民公安大学,北京100038

出　　处：《福建分析测试》2009年第4期37-40,共4页Fujian Analysis & Testing

基　　金：国家高技术产业发展项目(NO.20012492)资助

摘　　要：本文建立了毛细管气相色谱法定量分析离子液体中间体N-甲基咪唑含量的分析方法。以N,N-二甲基苯胺作为内标,采用DB-FFAP毛细管柱分离样品,氮磷检测器(NPD)测定N-甲基咪唑含量。线性方程为Y=8.5769x+0.0801,相关系数r=0.9997,线性范围0.02～0.14mg/mL,检测限(LOD)为58.6ng/mL,平均回收率为98.12%,相对标准偏差(RSD)为1.15%。该方法具有操作简便、快速、准确等优点,适合于离子液体中间体N-甲基咪唑的含量测定。A method for determination of the N-methylimidazole content in ionic liquid intermediate samples by capillary gas chromatography was developed. N,N-Dimethylaniline was added in prior to GC analysis. The GC analysis was carried out by DB-FFAP capillary column and nitrogen phosphorus detector （NPD）. The linear equation was Y=8.5769x＋0.0801,with r=0. 9997; The linear range was 0.02 -0.14mg/mL and the limit of detection was 58.6ng/mL, The average reeoveries were 98.12% and RSD wasl. 15%. The method was simple, rapid and aecuraey.A useful method for determining N-methylimidazole in ionic liquid intermediate samples was provided for chemical analysis.

关 键 词：N-甲基咪唑 离子液体 离子液体中间体 气相色谱法 

分 类 号：O657.71[理学—分析化学]