•  
  •  
  •  
  •  
  •  
  •  
  •  
  •  
期刊检索


检索
检索项:
检索词:
总目录
  • WCSB9︱2019(第九届)世界采样和混样大会 查看全文>>
  • 关于召开第十五届全国青年分析测试学术报告会的通知 查看全文>>
友情链接
气相色谱-质谱法测定食品接触材料中2-甲基-1,3-丙二醇和新戊二醇的迁移量
    点此下载全文
作者单位
贝荣华,陈湘颖,董犇,钟怀宁,陈燕芬,曾莹 ,陈胜,李丹,蔡汶静,郑建国 广州海关技术中心广东 广州 510665 
基金项目:国家重点研发计划项目(2016YFF0203705);广州海关科研项目(2021GZCK12,2020GZCK-026)
中文摘要:建立了食品接触材料中2-甲基-1,3-丙二醇(MPO)和新戊二醇(NPG)迁移量的气相色谱-质谱(GC-MS)检测方法。食品接触材料经迁移试验后,所得浸泡液经苯硼酸溶液衍生化、正己烷萃取后,GC-MS测定。结果表明,该方法在优化条件下的线性相关性良好,相关系数(r2)大于0.995;MPO和NPG在4%乙酸、10%乙醇、50%乙醇和异辛烷中的检出限均为0.01 mg/L;线性范围均为0.02~0.10 mg/L;在95%乙醇中,MPO的检出限为0.30 mg/L,线性范围为0.50~1.6 mg/L,NPG的检出限为0.03 mg/L,线性范围为0.05~0.16 mg/L。该方法在低、中、高3个浓度水平的平均回收率为85.0%~112%,相对标准偏差(RSD)为0.60%~9.5%。该方法的检测结果准确、灵敏度高,能较好地实现食品接触材料及制品中MPO和NPG迁移量的测定,满足我国法规的限量要求。
中文关键词:2-甲基-1,3-丙二醇(MPO)  新戊二醇(NPG)  食品接触材料  气相色谱-质谱法(GC-MS)  衍生化法
 
Determination of Migration of 2-Methyl-1,3-Propanediol and 2,2- Methyl-1,3-Propanediol in Food Contact Materials by Gas Chromatography-Mass Spectrometry
Abstract:A gas chromatography-mass spectrometry(GC-MS) was developed for the determination of migration of 2-methyl-1,3-propanediol(MPO) and 2,2-methyl-1,3-propanediol(NPG)in food contact materials. After the migration test of food contact materials,the obtained soaking solution was firstly derivatized with phenylboric acid solution,then extracted with n-hexane,and finally determined by GC-MS. Results showed that there were good linear relationship of this method in the optimized conditions,with correlation coefficients(r2) larger than 0.995. The detection limits for MPO and NPG in 4% acetic acid,10% ethanol,50% ethanol and isooctane were all 0.01 mg/L within linear ranges of 0.02-0.10 mg/L.The detection limit of MPO in 95% ethanol was 0.30 mg/L within a linear range of 0.50-1.6 mg/L. The detection limit for NPG in 95% ethanol was 0.03 mg/L within a linear range of 0.05-0.16 mg/L.The relative standard deviations(RSD) of this method were in the range of 0.60%-9.5%,and the average recoveries were 85.0%-112%.With the high accuracy and sensitivity,the method could be used to determine the migration of 2-methyl-1,3-propanediol and 2,2-methyl-1,3-propanediol in food contact coatings and plastic products, so as to meet the limited requirements of Chinese regulations.
Key Words:2-methyl-1,3-propanediol(MPO)  2,2-methyl-1,3-propanediol(NPG)  food contact materials  gas chromatography-mass spectrometry (GC-MS)  derivatization method
引用本文:贝荣华,陈湘颖,董犇,钟怀宁,陈燕芬,曾莹 ,陈胜,李丹,蔡汶静,郑建国.气相色谱-质谱法测定食品接触材料中2-甲基-1,3-丙二醇和新戊二醇的迁移量[J].分析测试学报,2021,40(11):1657-1662.
摘要点击次数: 82
全文下载次数: 159
查看全文  下载PDF阅读器