气相色谱质谱联用法测定食品用纸杯中二苯甲酮和4-甲基二苯甲酮  

Determination of benzophenone and 4-methylbenzophenone in catering paper cups by gas chromatography–mass spectrometry

作　　者：张智力 王恬 郗丹 李丕武[1] ZHANG Zhi-li;WANG Tian;XI Dan;LI Pi-wu(Qilu University of Technology(Shandong Academy of Sciences),Jinan 250353,China;Shandong Inspection Institute for Product Quality,National Supervision and Inspection Center(Jinan)for Packaging Product Quality,Jinan 250102,China)

机构地区：[1]齐鲁工业大学(山东省科学院),济南250353 [2]山东省产品质量检验研究院国家包装产品质量监督检验中心(济南),济南250102

出　　处：《中华纸业》2019年第22期11-15,共5页China Pulp & Paper Industry

摘　　要：建立了食品用纸杯中二苯甲酮和4-甲基二苯甲酮两种紫外吸收剂的气相色谱-质谱快速检测法。将纸杯样品剪碎或粉碎,用正己烷超声萃取,经0.22μm有机系滤膜净化过滤后,采用气相色谱-质谱仪上机测定,外标法定量,结果显示:二苯甲酮和4-甲基二苯甲酮分离程度高、峰型好,可以实现准确定量,两种目标物在3种添加水平下的回收率为90%~96.1%,相对标准偏差为1.4%~4.1%,相关系数为0.999以上,方法的检出限(S/N=3)为0.2mg/kg。方法简单高效、准确度高、灵敏度高,可用于食品用纸杯中二苯甲酮和4-甲基二苯甲酮的快速检测。A gas chromatography-mass spectrometry(GC-MS)rapid detection method was established for the two UV absorbers of benzophenone and 4-methylbenzophenone in catering paper cups.The paper cup samples were cut or pulverized and extracted with N-hexane.After purifying and filtering with 0.22μm organic membrane,the sample was determined by GC-MS and quantified by external standard method.The results showed that the separation rate of benzophenone and 4-methylbenzophenone was high,which can be accurately calculated.The recovery rate of the two items at the three levels of addition was 90%to 96.1%,the relative standard deviations was 1.4%to 4.1%,and the correlation coefficient was 0.999 or more.The detection limit of the method(S/N=3)was 0.2mg/kg.The method is simple and efficient,high in accuracy and sensitivity,and can be used for rapid detection of benzophenone and 4-methylbenzophenone in catering paper cups.

关 键 词：气相色谱质谱联用法 食品用纸杯 二苯甲酮 4-甲基二苯甲酮 

分 类 号：TS77[轻工技术与工程—制浆造纸工程] TS761.6