摘要
建立固相萃取净化-气相色谱-质谱分析食用油中16种邻苯二甲酸酯的方法。样品用正己烷溶解,过SPE净化柱,采用气相色谱-质谱在选择离子检测(SIM)模式下进行定性、定量分析。结果表明:16种邻苯二甲酸酯在10～10 000μg/L范围内线性关系良好,平均加标回收率为70.0%～110.1%,相对标准偏差为2.68%～11.83%,检出限为10～15μg/L。
A method for detecting 16 kinds of phthalates simultaneously in edible oils by SPE and gas chromatography -mass spectrometry（ GC -MS） was established. Samples were diluted by n -hexane and cleaned up with SPE column. The phthalates were determined qualitatively and quantitatively by GC- MS in selected ion monitoring （SIM） mode. The results showed that the linear range of 16 kinds of phthalates was 10 - 10 000 μg/L,the recovery rates were in the range of 70.0% - 110.1% with relative standard deviations being 2.68% -11.83%, the detection limits were 10 -15 μg/L.
出处
《中国油脂》
CAS
CSCD
北大核心
2012年第6期43-46,共4页
China Oils and Fats
基金
广东省质监局科技项目(2011ZS04)
