顶空-气相色谱法同时测定食品接触材料中1,3-二氧戊环和三聚甲醛
Simultaneous Determination of Migration Levels of 1,3-dioxolane and Trioxane in Food Contact Materials Using Headspace-gas Chromatography
李辉 1王妍力 1钟永红 1林黛琴 1聂绍丽 1张涛1
作者信息
- 1. 江西省检验检测认证总院工业产品检验检测院,江西 南昌 330052
- 折叠
摘要
建立了顶空-气相色谱法同时测定食品接触材料中1,3-二氧戊环和三聚甲醛迁移量的方法.方法采用顶空进样的方式,10%乙醇溶液为模拟物,Agilent DB-624 色谱柱分离,FID检测器检测,外标法定量,并对顶空及气相色谱运行条件进行优化.结果表明,1,3-二氧戊环和三聚甲醛分别在 0.05～5mg/L 和 0.5～10 mg/L范围内线性关系良好,相关系数(r)均大于0.999,在三种加标水平下,样品的加标回收率在 97.1%～104.4%之间,相对标准偏差S(RSD)在 2.1%～9.6%之间.该方法操作简便,结果准确可靠,可实现食品接触材料中1,3-二氧戊环及三聚甲醛迁移量的同时测定.
Abstract
A method has been developed to simultaneously determine the migration levels of 1,3-dioxolane and trioxane in food contact materi-als using headspace-gas chromatography.The method involves headspace injection with a 10%ethanol solution as the simulant,separation on an Agilent DB-624 column,detection using an FID detector,and quantification using an external standard method.The headspace and gas chromatography operating conditions were optimized.The results showed that 1,3-dioxolane and trioxane exhibit good linear relationships with-in the concentration ranges of 0.05～5 mg/L and 0.5～10 mg/L,respectively,with correlation coefficients(r)greater than 0.999.At three dif-ferent spiked levels,the recovery rates of the samples ranged from 97.1%to 104.4%,with a relative standard deviation(RSD)between 2.1%and 9.6%.The method is simple to operate and provides accurate and reliable results,enabling the simultaneous determination of the migration levels of 1,3-dioxolane and trioxane in food contact materials.
关键词
顶空-气相色谱法/1,3-二氧戊环/三聚甲醛/迁移量Key words
Headspace-gas chromatography/1,3-dioxolane/Trioxane/Migration level引用本文复制引用
出版年
2024
国家科技期刊平台
NSTL
万方数据