测定高纯水中痕量杂质Mn、Cd和Cr的原子吸收光谱分析技术  

The Technique of Atomic Absorption Spectral Analysis on Trace Impurity Mn,Cd and Cr in Ultrapure Water

作　　者：房晓辉[1] 孙向彤[1] 

机构地区：[1]贵州省理化测试分析研究中心

出　　处：《光谱实验室》1995年第1期21-24,共4页Chinese Journal of Spectroscopy Laboratory

摘　　要：为了克服在环境无净化条件下的污染和采用化学处理预富集而引入较高的空白值，采用了“空气参比－炉内富集－先测样品后测标准”的无火焰原子吸收光谱分析技术，测定高纯水中ｐｐｂ级的痕量元素Ｍｎ、Ｃｄ、Ｃｒ。方法简便，快速。测定各元素的相对标准偏差＜１０％。For prevent sample pollution cause dust in air,or give higher blank reading cause preconcentration with chemical methods,the technique of free-flame atomic absorption spectral analysis was used.This technique includes as reference with air,concentrate in furnace,determine standard solutions after samples.This technique can determine trace impurity Mn,Cd and Cr in ultrapure water with sensitivity(ppb),and the method is simple and convenient,quick.The RSD of each element determined is less than 10%.

关 键 词：高纯水 痕量元素 原子吸收光谱 镁 镉 铬 

分 类 号：O661.[理学—分析化学] O657.31[理学—化学]