摘要
采用火焰原子吸收光谱法直接测定了野生龙葵果中铁、锰、锌、铜、钙、镁的含量,再运用原子荧光光谱法测定野生龙葵果中硒的含量。选用硝酸和高氯酸(5∶1)混合消解液进行消解。结果所测定的龙葵果中含有丰富的人体必需微量元素。本方法简单、准确,回收率在93.5%—101.0%之间,相对标准偏差(RSD)小于1.46%,结果令人满意。
The contents of Fe,Mn,Zn,Cu,Ca,Mg in Solanum nigrum were determined by flame atomic absorption spectrometry.The content of Se in Solanum nigrum was determined by atomic fluorescence spectrometry.The sample was digested by wet decompostion with HNO3 and HClO4(5:1).The results show that the Solanum nigrum contains rich trace elements which are necessary for people.The recovery was 93.5%—101.0% and the RSD was less than 1.46%.The method is simple and rapid with satisfactory results.
出处
《光谱实验室》
CAS
CSCD
北大核心
2010年第4期1385-1388,共4页
Chinese Journal of Spectroscopy Laboratory
关键词
龙葵果
微量元素
火焰原子吸收光谱法
原子荧光光谱法
Fruit of Solanum Nigrum
Trace Element
Flame Atomic Absorption Spectrometry
Atomic Fluorescence Spectrometry