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ICP-AES法测定硝酸银中铋、铁、铜、铅含量研究
引用本文:周耀明,张艳,罗岳平,田耘,胡华勇.ICP-AES法测定硝酸银中铋、铁、铜、铅含量研究[J].环境科学与管理,2014,39(12):142-144.
作者姓名:周耀明  张艳  罗岳平  田耘  胡华勇
作者单位:湖南省环境监测中心站,湖南长沙410014;国家环境保护重金属污染监测重点实验室,湖南长沙410014
摘    要:采用等离子体发射光谱法测定感光材料硝酸银中铋、铁、铜、铅等杂质元素的含量,样品经氯化铵溶液沉淀分离基体银后,利用等离子体发射光谱法测定滤液中多种杂质元素含量,并通过优化高频发生器等仪器工作参数及沉淀剂用量和沉淀时间等确定了最佳实验条件,具有简单快捷、灵敏度高、重现性好、线性范围广、结果准确等优势.铋、铁、铜、铅元素的检出限分别为0.0003、0.0005、0.0003、0.001 0 ug/mL,加标回收率在96.20% ∽ 103.50%之间,适用于感光材料硝酸银中杂质元素的测定.

关 键 词:硝酸银  ICP-AES法        

Determination of Bi,Fe, Cu,Pb in Silver Nitrate by ICP-AES Method
Zhou Yaoming,Zhang Yan,Luo Yueping,Tian Yun,Hu Huayong.Determination of Bi,Fe, Cu,Pb in Silver Nitrate by ICP-AES Method[J].Environmental Science and Management,2014,39(12):142-144.
Authors:Zhou Yaoming  Zhang Yan  Luo Yueping  Tian Yun  Hu Huayong
Institution:Zhou Yaoming, Zhang Yan, Luo Yueping, Tian Yun, Hu Huayong (1. Hunan Province Environmental Monitoring Cerner, Changsha 410014, China; 2. State Environmental Protection Key Laboratory of Monitoring for Heavy Metal Pollutants, Changsha 410014, China)
Abstract:Method for determining the amount of Bi, Fe, Cu, Pb in silver nitrate with ICP - AES had be developed. In order to separate silver from the sample, ammonium chloride solution was used to get the silver chloride precipitation. By improved the parameter of equipment and the use of precipitation agent, the method had been greatly ameliorate at stability and veracity to de- termination heavy metals impurities in the filtrate. Under the optimal experiment conditions, the limit of detection for Bi, Fe, Cu, Pb was O. 000 3, O. 000 5, 0. 000 3,0. 001 0 ug/mL and the recovery is 97.7% to 102. 4% respectively, which was suitable for impurity heavy metals elements in Silver nitrate
Keywords:silver  ICP-AES  bismuth  iron  copper  lead
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