摘要
建立了毛细管气相色谱法测定车用汽油中甲基苯胺类添加剂的方法,能够快速地分析N-甲基苯胺、对甲基苯胺、邻甲基苯胺、间甲基苯胺、苯胺和N,N-二甲基苯胺等6种甲基苯胺类化合物。在优化的色谱条件下,以苯乙酮为内标,汽油样品可直接进入气相色谱仪分析。结果显示,6种常见的甲基苯胺类添加剂在1—50g·L-1范围内呈良好线性,检出限为0.07—0.34g·L-1,样品的加标回收率为94.3%—117.1%,相对标准偏差为1.8%—3.9%。
A method for determination of methyl aniline in motor gasoline by capillary column gas chromatograph was developed, and N-methylaniline, o-toluidine, p-toluidine, rn-toluidine, aniline, and N,N-dimethylaniline were rapidly analyzed. The gasoline samples were directly analyzed by gas chromatography with acetophenone as interior label under the optimal conditions. The calibration curves of methyl aniline additives had the good linear relationship in the range of 1--50g· L-1 with detection limits of 0. 07--0.34g · L-1. The recoveries ranged from 94.3%--117. 1% with relative standard deviations of 1.8%--3.9%.
出处
《光谱实验室》
CAS
CSCD
2012年第6期3564-3567,共4页
Chinese Journal of Spectroscopy Laboratory
基金
广东省质量技术监督局科技计划项目(2011ZZ07)
关键词
气相色谱法
汽油
甲基苯胺
添加剂
Gas Chromatography
Gasoline
Methyl Aniline
Additives
