摘要
采用固相微萃取技术和气相色谱 -质谱法 ,以己二酸二(1_丁基戊基)酯为内标 ,测定塑料浸泡液中己二酸二(2_乙基己基)酯 ,考察了盐效应、萃取温度、萃取时间和热解吸时间等因素对方法灵敏度的影响 ;方法简便、准确、灵敏度高 ;该法对己二酸二(2_乙基己基)酯的检出限为0.05μg/L(S/N=3) ;回收率为90%~94% ,相对标准偏差为5.52 %。
Di(2-ethyl hexyl)adipate in immersed plastic solutions was determined by solid-phase microextraction(SPME)coupled with gas chromatography-mass spectrometry.The operating conditions of SPME such as the extraction temperature,salt effect,extraction and desorption time have been studied.Bis(1-butyl pentyl)adipate was selected as the internal standard.The developed method was simple and sensitive.The detection limit,reˉcovery and relative standard deviation(RSD)were0.0534μg·L -1 ,90%~94%and5.52%,respectively.
出处
《分析测试学报》
CAS
CSCD
北大核心
2003年第6期45-47,共3页
Journal of Instrumental Analysis
基金
国家质量监督检验检疫总局科研项目(2002IK033)