摘要
本文建立了一种同时测定食品包装中6种爽滑剂(月桂酰胺、棕榈酰胺、油酸酰胺、硬脂酰胺、芥酸酰胺、山嵛酰胺)的气相色谱-质谱方法,从源头上对食品包装的质量进行控制。样品经粉碎、甲醇超声提取后,注入气相色谱-质谱仪进行分析。优化进样口温度,使用高温缓升的升温程序实现色谱分离,选择定量定性离子进行质谱测定。结果表明,6种酰胺的质量浓度在各自线性范围内线性关系良好,测得其定量限为0.3~22 mg/kg。以空白样品为基体,加入6种酰胺的混合标准溶液进行回收试验,测得回收率为80.0%~95.0%,测定值的相对标准偏差(n=6)为4.6%~7.9%。该方法灵敏、准确,精密度高,重复性好,适用于食品包装材料中6种爽滑剂含量的检测。
In this paper,a gas chromatography-mass spectrometry(GC-MS)method was established for the simultaneous determination of six slip agents(Lauramide,Hexadecanamide,Oleamide,Stearamide,Erucamide and Behenamide)in food packaging so as to control the quality of food packaging from the source.The samples were crushed,ultrasonically extracted with methanol,and then injected into a gas chromatography-mass spectrometer for analysis.The inlet temperature was optimized,chromatographic separation achieved using a high-temperature ramp-up program,and quantitative qualitative ions selected for mass spectrometry.The results showed that the mass concentrations of the six amides had a good linear relationship in their respective linear ranges,and the limits of quantification were 0.3-22 mg/kg.With the blank sample as the matrix,and by adding the mixed standard solution of 6 amides for recovery test,the recoveries of the compounds in spiked samples were 80.0%-95.0%,and the relative standard deviations(n=6)of the measured values were 4.6%-7.9%.This method is sensitive,accurate,with high precision and good repeatability,and is suitable for the detection of six slipping agents in food packaging materials.
作者
陶琳
许健
蔡翔宇
王乐
徐颖
徐丽
TAO Lin;XU Jian;CAI Xiang-Yu;WANG Le;XU Ying;XU Li(Comprehensive Technical Service Center of Zibo Customs,Zibo 255000;Technical Center of Nanning Customs District,Nanning 530201;Technical Center of Jinan Customs District,Jinan 250014;Qingdao Dagang Customs,Qingdao 266012)
出处
《中国口岸科学技术》
2024年第3期77-83,共7页
China Port Science and Technology
基金
国家市场监督管理总局技术保障专项项目(2023YJ39)。
关键词
食品包装
爽滑剂
酰胺类物质
food packaging materials
slipping agents
amides
