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.
出处
《化学试剂》
CAS
CSCD
北大核心
2012年第5期441-443,共3页
Chemical Reagents
关键词
顶空液相微萃取
指甲油
苯类物质
气相色谱
headspace liquid-phase micro extraction
nailpolish
benzene substances
gas chromatography
