摘要
建立了凝胶渗透色谱-气相色谱/质谱法同时测定食用油中22种邻苯二甲酸酯的方法。方法具有良好线性,相关系数R均大于0.999,检测限在0.09～11.83 mg/kg之间,平均回收率在81.45%～113.90%范围内,相对标准偏差为1.55%～9.41%。采用该方法对国内食用油中邻苯二甲酸酯增塑剂进行检测,实际样品中检出邻苯二甲酸二异丁酯、邻苯二甲酸二丁酯和邻苯二甲酸二(2-乙基)己酯,可满足目前食用油中邻苯二甲酸酯的检测要求。
A method for the simultaneous determination of 22 phthalate acid esters in edible oils by gas chromatography-mass spectrometry coupled with gel permeation chromatography was developed.The correlation coefficients（R） of 22 phthalate acid esters were over 0.999 with detection limits from 0.09~11.83 mg/kg.The average recoveries of 22 phthalate acid esters in edible oils were ranged from 81.45%~113.90%.In addition,the relative standard deviations（RSDs） were in the range of 1.55%~9.41%.The level of phthalate acid esters plasticizers in edible oils was investigated by this method,and di-iso-butyl phthalate,dibutyl phthalate,bis（2-ethylhexyl） phthalate were found in some real samples.The simplicity,sensitivity and precision of the method made it be well suitable for the analysis of phthalate acid esters in edible oils.
出处
《分析科学学报》
CAS
CSCD
北大核心
2012年第2期217-221,共5页
Journal of Analytical Science
基金
福建省质量技术监督局科技计划(No.FJQI201107)
关键词
食用油
凝胶渗透色谱
气相色谱/质谱法
邻苯二甲酸酯
增塑剂
Edible oils
Gel permeation chromatography
Gas chromatography/mass spectrometry
Phthalate acid esters
Plasticizers
