摘要
采用HNO3-H2O2微波消解法对太原市售的小米等8种粗粮样品进行处理,以ICP-AES法同时测定了样品中钙、钾、镁、锌、铁、铜、锰等7种金属元素的含量,并与大米样品进行了对比。实验结果表明,这8种粗粮中均富含人体所需的金属元素,尤以小米品质更为突出。所建方法的回收率为90%～101%,相对标准偏差≤1.37%,检出限介于0.001～0.366μg/mL之间。该方法简便、快速,适用于粗粮中多种金属元素含量的同时测定。
Eight kinds of coarse grains sold in Taiyuan supermarket were treated using HNO3-H2O2-microwave digestion method,and a number of metal elements including calcium,potassium,magnesium,zinc,iron,copper,manganese were determined by ICPAES.Compared with the experimental result of rice,these coarse grains contain more metal elements which are necessary to body,especially in millet.The recovery of the method was 90% ～ 101%,the relative standard deviation was less than 1. 37%,the detection limit was between 0. 001 ～ 0. 366 μg/mL.The method of using ICP-AES to measure the content of various metal elements in coarse grain simultaneously is simple and fast.
作者
刘芳
LIU Fang(Metallurgical Engineering Department, Shanxi Engineering Vocational Technical College, Taiyuan 030009, Chin)
出处
《化学试剂》
CAS
北大核心
2018年第7期667-669,共3页
Chemical Reagents
基金
山西省教育科学“十三五”规划课题项目(GH-17110)
山西工程职业技术学院院级课题项目(jky-1603)
关键词
微波消解
电感耦合等离子体发射光谱法
粗粮
金属元素
microwave digestion
inductively coupled plasma emission spectrometry
coarse grains
metal elements
