ICP-OES有机直接进样法测定食品添加剂中铁、钙、铝、铅、锌、砷
Determination of Iron,Calcium,Aluminum,Lead,Zinc and Arsenic in Food Additives by Directly Introduction under Method of Organic Phase Using ICP-OES
荣沙沙 1杜建侠 1李红 1肖清燕 1卢会珍1
作者信息
- 1. 湖北三峡实验室,湖北 宜昌 443000
- 折叠
摘要
建立了ICP-OES(电感耦合等离子体发射光谱仪)有机直接进样测定复配食品添加剂中铁、钙、铝、铅、锌、砷共6种元素含量的方法.采用乙醇溶液为稀释剂,按一定比例稀释后直接进仪器检测.结果表明,这6种元素在0.05～5.00 mg/L线性关系良好,相关系数均大于0.9999,检出限为0.0001～0.0016mg/L,加标回收率为91.4％～108.4％,相对标准偏差为0.53％～3.65％.该方法操作简单,准确度高,安全快捷,可用于复配食品添加剂中的杂质元素检测.
Abstract
Inductively Coupled Plasma Optical Emission Spectrometer(ICP-OES)was proposed to determine of 6 elements including iron,calci-um,aluminum,lead,zinc and arsenic in food additives by directly introduction under method of organic phase.With ethanol solution as a diluent,the samples are directly analyzed after being diluted according to a specific ratio,the results showed that good linearity in the concentration range of 0.05-5.00 mg/L and the correlation coefficient was over 0.9999,the limits of detection(LODs)of all the elements were in the range from 0.0001-0.0016 mg/L,the average recoveries were 91.4％-108.4％,and the relative standard deviations(RSD)were 0.53％-3.65％.This method is simple to operate,highly accurate,safe and fast.It can be used for detecting impurity elements in compound food additives.
关键词
ICP-OES/有机进样法/食品添加剂/杂质元素Key words
ICP-OES/Method of Organic Phase Sampling/Food Additives/Impurity Elements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