摘要
建立气相色谱-质谱联用同时测定饮料中15种邻苯二甲酸酯的检测方法。样品采用正己烷萃取后直接测定，采用HP-SMS毛细管色谱柱对邻苯二甲酸酯分离，GC／MS测定，外标法定量。邻苯二甲酸酯的线性相关系数r大于0．994，回收率在91．2％～101．7％之间，相对标准偏差均在1．8％～4．8％之间。该方法操作简单、快速，灵敏度和准确度高，适用于饮料样品中多种邻苯二甲酸酯残留量的同时检测。
A gas chromatography-mass spectrometry method has been developed to determine fifteen phthalate esters in beverage. Sample can be measured directly after extraction using n-hexane. A HP-5MS capillary chromatographic column can be used for the separation of phthalate esters. And the analysis was performed by GC/MS. The external calibrations were used for the quantification. All their correlation coefficients （R） are larger than 0. 994, and their recovery rates are in the range of 91.2% - 101.7 %, and with relative standard deviations （RSD）in the range of 1.8% ~ 4. 8%. The method is simple ,rapid, sensitive and accurate, and can be used for the simultaneous determination of residual phthalate esters in beverage samples.
出处
《化学研究与应用》
CAS
CSCD
北大核心
2013年第11期1590-1593,共4页
Chemical Research and Application
