【摘要】 [目的]建立饮料中邻苯二甲酸酯类增塑剂测定方法,并对其在市售饮料中的情况进行研究。[方法]采用正己烷提取,水浴氮吹浓缩,气相色谱-质谱法检测。[结果]实验条件下,8种邻苯二甲酸酯类能很好分离检测,线性相关系数γ﹥0.997,相对标准偏差RSD在3.69%～6.39%之间,加标回收率在79%～99%之间。检测89份样品,DIBP检出率为12%,DBP检出率为93%,DEHP检出率为12%。[结论]该测定方法操作简便,分离效果好。检测结果显示,饮料中存在邻苯二甲酸酯类污染物。更多还原

【Abstract】 [Objective]To establish detection method for phthalates in drinks,then apply this method in local market.[Methods]Phthalates were extracted with n-Hexane,and concentrated by water bath nitrogen blowing method.The analysis was performed by GC-MS and SCAN.[Results]8 kinds of phthalates could be completely separated under the condition of gas chromatography and mass spectroscope.The relative coefficient(γ)was above 0.997,relative standard deviation(RSD)was 3.69%-6.39%,and recovery rate with added specimen ranged from 79% to 99%.The detection rate of DIBP,DBP and DEHP in 89 drink samples was 12%,93% and 12% respectively.[Conclusion]This detection method is simple,effective and applicable.Results show that phthalates could be detected in all kinds of drinks in market.更多还原