四川师范大学学报（自然科学版）2013，Vol.36Issue(1)：102-106,5.DOI:10.3969/j.issn.1001-8395.2013.01.022
水合肼还原高纯硝酸银的ICP-AES同时测定其9种杂质元素的方法研究
Study on Simultaneous Determination of Traces of 9 Impurity Elements in High-Purity Silver Nitrate Reduced with Hydrazine by ICP-AES
摘要
Abstract
A convenient and simultaneous determination method of nine traces of metal impurity elements in high-purity silver nitrate by ICP-AES was studied in this paper. After separating silver with EDTA as protector of the metal impurities, ammonia as solvent, hydrazine as reducer and volatilizing ammonium chloride, Bi, Cd, Fe, Cr, Ni, Mn, Cu, Pb, and Pd were determined by ICP-AES directly. The results showed when the contents of Bi, Cd, Fe, Cr, Ni, Mn, Cu, and Pb impurity elements in high-purity silver nitrate were higher than 50 ng/g, RSD was less than 3.2% and the recovery rate was 96.0% -113.8%, and the testing results agreed with those by ICP-MS. The new method adopting for accurate determination of Bi, Cd, Fe, Cr, Ni, Mn, Cu, Pb, and Pd above 50 ng/g in silver nitrate including high-purity sensitization grade has been developed.关键词
水合肼/硝酸银/杂质元素/ICP-AESKey words
hydrazine/ silver nitrate/ impurity elements/ ICP-AES分类
化学化工引用本文复制引用
李佐才,操飞,赵仕林,顾爱群..水合肼还原高纯硝酸银的ICP-AES同时测定其9种杂质元素的方法研究[J].四川师范大学学报（自然科学版）,2013,36(1):102-106,5.基金项目
国家自然科学基金(51173122)和四川检验检疫局科研基金(SK0601)资助项目 （51173122）
