气相色谱-质谱联用检测聚丙烯食品包装材料中的18种有毒有害物质  

Determination of 18 Substances in Polypropylene Food Packaging Materials by Gas Chromatography-mass Spectrometry

作　　者：周松华[1] 林勤保[1,2] 李波[2] 吴宇梅[2] 王志伟[2] 

机构地区：[1]山西大学化学化工学院,太原030006 [2]暨南大学包装工程研究所产品包装与物流广东省高校重点实验室,广东珠海519070

出　　处：《包装与食品机械》2015年第1期56-62,共7页Packaging and Food Machinery

基　　金：国家自然科学基金面上项目(21277061;1277085)

摘　　要：采用气相色谱-质谱联用的方法检测聚丙烯（PP）包装材料中的18种有毒有害物质。其中包括增塑剂、芳香胺类、抗氧化剂、光引发剂、香精香料和溶剂残留。包装材料经乙酸乙酯超声萃取,上机检测。用GC-MS全扫描定性,选择离子定量。各种物质在质量浓度0.5～5.0mg·L^-1的范围内线性关系良好,相关系数R〉0.9943;添加浓度为0.10、0.20、0.40mg·L^-1的加标回收率为74.9%～121.3%,相对标准偏差RSD为1.4%～6.8%（n=6）;方法检出限的范围是1.5～80.0μg·L^-1。该方法在20 min内完成了18种有毒有害物质的分离和检测,结果准确,重现性好,并应用该方法测定了PP包装材料中该18种物质的含量。Determination of 18 harmful substances in polypropylene food packing materials by gas chro- matography-mass spectrometry has been studied. The analyzed substance included aromatic amine, antioxida- nts,initiator,spices and solvent residue. Packaging materials were ultrasonic extracted using ethyl acetate as solvent, then analyzed by GC-MS. Acquisition was performed in scan mode for the optimization and in SIM mode for the quantification. For building the calibration curves, solutions of the compounds at different concen- tration levels were prepared in ethyl acetate and analyzed by GC-MS. The standard curves were linear in the range of 0.05 - 5.0 mg · L^- 1 and have a good linear relationship （ R 〉 0. 9943 ）. Spiked at concentration of 0.10,0.20,0.40 mg · L^-1,the recoveries were 74.9% -121.3% with RSD 1.4% -6.8% （n=6）.Thedetection limit were in the range of 1.5 - 80.0 μg · L^- 1. The method completed the separation and detection of 18 substances within 20 minutes. The method is applied to determined the 18 substances in polypropylene packaging materials.

关 键 词：气相色谱-质谱联用 聚丙烯 包装材料 

分 类 号：TS207.5[轻工技术与工程—食品科学]