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当前位置: 首页 > 文章 > GC-MS法检测谷类、根茎类蔬菜中24种邻苯二甲酸酯 食品科学 2013,34 (16) 164-168
Position: Home > Articles > Determination of 24 Phthalate Ester Plasticizers in Cereals and Root Vegetables by Gas Chromatography-Mass Spectrometry FOOD SCIENCE 2013,34 (16) 164-168

GC-MS法检测谷类、根茎类蔬菜中24种邻苯二甲酸酯

作  者：
郭浩楠;凌云;李玉玉;储晓刚
单  位：
中国检验检疫科学研究院食品安全研究所
关键词：
邻苯二甲酸酯;气相色谱-质谱法;谷类;根茎类蔬菜
摘  要：
建立气相色谱-质谱法同时测定谷类、根茎类蔬菜中24种邻苯二甲酸酯的方法。样品经正己烷-水或者正己烷-丙酮-水提取,正己烷层浓缩至干后定容,气相色谱-质谱联用仪测定,内标法定量。方法具有良好线性,相关系数r均大于0.999,检测限在0.001～0.1mg/kg之间,平均回收率在78.7%～113.2%范围内,相对标准偏差为0.4%～14.4%。采用该方法对国内市售谷类、根茎类蔬菜中邻苯二甲酸酯进行检测,实际样品中检出了邻苯二甲酸二乙酯、邻苯二甲酸二丁酯、邻苯二甲酸二(2-乙基己)酯和邻苯二甲酸二异壬酯等。此方法可满足目前谷类、根茎类蔬菜中邻苯二甲酸酯的检测要求。
译  名：
Determination of 24 Phthalate Ester Plasticizers in Cereals and Root Vegetables by Gas Chromatography-Mass Spectrometry
作  者：
GUO Hao-nan,LING Yun,LI Yu-yu,CHU Xiao-gang(Food Safety Institute,Chinese Academy of Inspection and Quarantine,Beijing 100025,China)
关键词：
phthalate acid esters;gas chromatography-mass spectrometry(GC-MS);cereal;root vegetables
摘  要：
A method for simultaneous determination of 24 phthalate acid esters(PAEs) in cereals and root vegetables was developed.Samples were extracted by n-hexane/distilled water or n-hexane/acetone/distilled water.The collected supernatants were vacuum-concentrated to dryness and re-dissolved in n-hexane.PAEs were measured by gas chromatography-mass spectrometer(GC-MS) using internal standard method.The correlation coefficients(r) of 24 PAEs were over 0.999 with detection limits between 0.001 mg/kg and 0.1 mg/kg.The average recoveries of 24 PAEs in cereals and root vegetables varied from 78.7% to 113.2%,with relative standard deviations(RSDs) between 0.4% and 14.4%.The migration amount of PAEs plasticizers in cereals and root vegetables was investigated by this method,diethyl phthalate,di-n-butyl phthalate,di-2-ethylhexyl phthalate and di-iso-nonyl phthalate were found in some commercial samples.This method is well suitable for the analysis of PAEs in cereals and root vegetables.

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