顶空液相微萃取-气相色谱法测定指甲油中的苯类物质  

Determination of benzene substances in nail polish by headspace liquid-phase micro extraction combined with gas chromatography

作　　者：宋吉英[1] 郭峰[1] 

机构地区：[1]青岛农业大学化学与药学院,山东青岛266109

出　　处：《化学试剂》2012年第5期441-443,共3页Chemical Reagents

摘　　要：本实验采用顶空液相微萃取法,正辛醇作为萃取溶剂,样品在30℃水浴条件下搅拌顶空萃取25 min。待测物结合气相色谱分析方法,采用程序升温和分流进样,用氢火焰离子化检测器建立了测定指甲油中苯类物质的新方法。各种目标物的线性相关系数在0.983 3～0.993 4之间,加标回收率在95.88%～97.70%之间。该方法稳定可靠,分析结果良好。A new method was developed for the determination of benzene substances by headspace liquid-phase micro ex- traction-gas chromatography. The sample was agitated in 30 ℃water for 25 rain, oetanol was extraction solvent. The FID detector ,temperature-programmed method and split injec- tion were chosen. The linearly dependent coefficient was 0.983 3 - 0.993 4 and spiking average recovery was 95.88% -97.70%. The results show that the method is reli- able and sensitive on the real samples.

关 键 词：顶空液相微萃取 指甲油 苯类物质 气相色谱 

分 类 号：O652.6[理学—分析化学] O657[理学—化学]