色谱Issue(7)：735-740,6.DOI:10.3724/SP.J.1123.2014.04036
单壁碳纳米管固相萃取-气相色谱-质谱联用法测定茶油中6种邻苯二甲酸酯
Determination of six phthalate acid esters in camellia oil by gas chromatography-mass spectrometry coupled with solid-phase extraction using single-walled carbon nanotubes as adsorbent
摘要
Abstract
An analytical method based on solid-phase extraction with single-walled carbon nanotubes( SWCNTs ) as adsorbent was developed for the simultaneous determination of six phthalate acid esters( PAEs)in camellia oil by gas chromatography-mass spectrometry( GC-MS). The samples were diluted by hexane and then cleaned up with a glass SWCNTs solid phase extraction( SPE)column. The PAEs were measured by GC-MS in selected ion monito-ring( SIM)mode,using external standard method for quantitative analysis. The important fac-tors affecting extraction efficiency,such as the dilution volume of hexane,the type of adsor-bent material,the dosage of SWCNTs,the volume of wash solution,the type and volume of elution solution were optimized. The optimal conditions were as follows:the dilution volume of hexane was 5 mL,the dosage of SWCNTs was 0. 6 g,the wash solution was 20 mL hexane,and the elution solution was 5 mL toluene. The six PAEs had a good linear range from 0. 05 mg/L to 1. 0 mg/L,with the correlation coefficients( r)all above 0. 999 9. The average recoveries of the six targets in spiked camellia oil( from 0. 05 mg/kg to 1. 0 mg/kg ) ranged from 86. 4% to 111. 7% with the relative standard deviations ( RSDs ) from 4. 2% to 10. 4%. The developed method is accurate,quick and suitable for the determination of the six PAEs in camellia oil.关键词
固相萃取/气相色谱-质谱/邻苯二甲酸酯/茶油/单壁碳纳米管Key words
solid-phase extraction( SPE)/gas chromatography-mass spectrometry( GC-MS)/phthalate acid esters/camellia oil/single-walled carbon nanotubes( SWCNTs)分类
化学化工引用本文复制引用
张帆,李忠海,张莹,黄志强,王小淞..单壁碳纳米管固相萃取-气相色谱-质谱联用法测定茶油中6种邻苯二甲酸酯[J].色谱,2014,(7):735-740,6.基金项目
国家科技支撑计划课题（2012BAK08B01）；国家质检总局科技计划项目（2013IK160）；湖南省研究生科研创新基金项目（ CX2012B332）． （）
