| 均匀优化设计-氢化物发生原子吸收光谱法测定钨精矿中砷量 |
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| 引用本文： | 陈涛,潘建忠. 均匀优化设计-氢化物发生原子吸收光谱法测定钨精矿中砷量[J]. 中国钨业, 2011, 26(1): 45-47 |
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| 作者姓名： | 陈涛 潘建忠 |
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| 作者单位： | 赣州有色冶金研究所,江西,赣州,341000 |
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| 基金项目： | 国家标准基金资助项目(20064035-T-610) |
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| 摘 要： | 该方法应用均匀设计这一优化试验设计理论,采用氢化物发生原子吸收光谱法测定钨精矿中砷量.经实验确定了测定砷量的最佳分析条件:经硫酸-硫酸铵分解,用柠檬酸在氨性介质中络合钨、铁、锰等干扰元素,用抗坏血酸预还原五价的砷到三价.样品溶液在15%的酸度中,经流动注射-氢化物发生与原子吸收光谱仪联用测定砷量.该方法具有灵敏度高,准...
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| 关 键 词： | 均匀设计 氢化物发生 钨精矿 砷 |
On the Arsenic Amount Determination in Tungsten Concentrate by Optimal Design of Uniform-hydride Generation Atomic Absorption Spectrometry |
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| CHEN Tao,PAN Jian-zhong. On the Arsenic Amount Determination in Tungsten Concentrate by Optimal Design of Uniform-hydride Generation Atomic Absorption Spectrometry[J]. China Tungsten Industry, 2011, 26(1): 45-47 |
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| Authors: | CHEN Tao PAN Jian-zhong |
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| Affiliation: | CHEN Tao,PAN Jian-zhong(Ganzhou Nonferrous Metallurgy Institute,Ganzhou 341000,Jiangxi,China) |
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| Abstract: | A technology based on uniform design is proposed in the optimization of arsenic amount determination in tungsten concentrate by hydride generation atomic Absorption Spectrometry.The optimized analysis condition is obtained by means of experiments: the sample is decomposed by sulfuric acid-ammonium sulfate,coordinated with tungsten,iron,manganese in ammonia medium using citric acid,then reduced pentavalent arsenic to trivalent arsenic by ascorbic acid.Arsenic amount at the degree of 15 % acid solution is mea... |
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| Keywords: | uniform design hydride generation tungsten concentrate arsenic amount |
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