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萃取分离ICP-AES法测定高纯金中的杂质元素
引用本文:孙丹丹,曹昕宇.萃取分离ICP-AES法测定高纯金中的杂质元素[J].光谱学与光谱分析,2001,21(6):849-851.
作者姓名:孙丹丹  曹昕宇
作者单位:北京大学化学与分子工程学院,北京,100871
摘    要:通过用有机溶剂甲基异丁基酮(MIBK)在10%的盐酸溶液中萃取高纯金(99.99%)中的基体元素,使得大量的金得以分离,消除了基体的存在对杂质元素测定的干扰,使微量的杂质元素的测定成为可能,进而用等离子体发射光谱仪测定了高纯金中Cd,Cr,Cu,Fe,Mn,Ni,Pb,Pt等元素的含量。

关 键 词:ICP-AES  MIBK  萃取  杂质元素  高纯金  测定  分离  电感耦合等离子体原子发射光谱
文章编号:1000-0593(2001)06-0849-03
修稿时间:2001年8月1日

Determination of Impurity Elements in High Purity Gold Using ICP-AES Method after Matrix Extraction and Separation
SUN Dan dan,CAO Xin yu College of Chemistry and Molecular Engineering,Peking University,Beijing ,China.Determination of Impurity Elements in High Purity Gold Using ICP-AES Method after Matrix Extraction and Separation[J].Spectroscopy and Spectral Analysis,2001,21(6):849-851.
Authors:SUN Dan dan  CAO Xin yu College of Chemistry and Molecular Engineering  Peking University  Beijing  China
Institution:College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China.
Abstract:A system for separation of trace impurity elements (Cd, Cr, Cu, Fe, Mn, Ni, Pb, Pt) from large amounts of matrix element gold is proposed in this paper. It is based on the MIBK extraction. The effect of pH to the extraction is studied, the final measuring solution is effectively 10% hydrochloric acid. The recovery of elements is between 93.3%-100% under this acidity after the first extraction. Content of trace elements of 99.99% gold is in the range 0.1-20 micrograms.g-1.
Keywords:ICP  AES  MIBK extraction  Impurity elements
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