气相色谱-质谱联用法测定食品用纸容器中的16种多环芳烃  

Determination of 16 PAHs in paper containers for food by gas chromatography-mass spectrometry

作　　者：骆和东[1] 周娜[1] 叶雅真[1] 朱宝平[1] 

机构地区：[1]福建省厦门市疾病预防控制中心,福建厦门361021

出　　处：《中国卫生检验杂志》2012年第10期2280-2283,2287,共5页Chinese Journal of Health Laboratory Technology

基　　金：厦门市科技计划项目(3502Z20077072)

摘　　要：目的:建立食品用纸制容器中16种多环芳烃的气相色谱-质谱联用的检测方法。方法:采用水、4%乙酸、20%乙醇、正己烷四种模拟食品溶剂浸泡一次性纸杯,用二氯甲烷超声提取浸泡液中的多环芳烃,气相色谱-质谱联用法进行定性定量分析。结果:16种多环芳烃在25 min内流出,分离良好,在0.01 mg/L～10.0 mg/L的浓度范围内线性良好,相关系数为0.9985～0.9999,方法的检出限为0.24μg/L～3.80μg/L(S/N=3),样品的加标回收率为75.9%～123.1%,相对标准偏差为1.17%～13.9%。结论:该方法操作简便,准确度高,适于食品用纸质容器中多环芳烃的迁移研究及检测。Objective：To establish a method for determination of 16 PAHs in paper containers for food by gas chromatography- masss spectrometry. Methods： The disposable paper cups were soaked with water, 4% HAc, 20% ethanol and n - hexane respectively, and the PAHs were extracted with CH2Cl2 ultrasonically from the four soa- king solutions, and then determined by GC - MS. Results ： The linearity of the method was good within the range of 0.01 μg/ml - 10.0 μg/ml for 16 PAHs. Linear correlation coefficients varied from 0. 9985 to 0. 9999. Limits of de- tection （LODs） ranged from 0.24 to 3. 80μg/L. The average recoveries were 75.9% - 123.1%, with the relative standard deviations （RSDs） of 1.17% - 13.9%. Conclusion： The method is simple, accurate and suitable for de- termining 16 PAI-Is in the paper containers for food.

关 键 词：多环芳烃 气相色谱-质谱联用法 一次性纸杯 

分 类 号：O657.63[理学—分析化学]