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电感耦合等离子体原子发射光谱法测定高纯硒中18种杂质元素熊晓燕1,张永进2,王津1(1.广东省广州市广州有色金属研究所分析测试中心2.中南大学 材料科学与工程学院,湖南长沙 410083)摘 要:高纯硒采用硝酸溶解并蒸干后于320℃的挥发炉中,挥发40 min,用盐酸溶解残渣后,采用电感耦合等离子体原子发射光谱(ICP-AES)法测定Al,As,Bi,Cd,Co,Cr等18种共存杂质元素的含量.考察了溶解酸的种类,主体硒的挥发条件,硒的残存量及干扰情况,分析谱线的选择等.方法检出限小于30 ng/g,用于测定高......
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粉. 表4 高纯银粉化学成分 Table 4 Chemical composition of high purity silver powder 图8 银粉的XRD谱和SEM像 Fig. 8 XRD pattern (a) and SEM image (b) of silver powder 3 结论 1) 提出一种"亚钠分银-酸化沉..., HUANG Shao-yong, NIE Hua-ping. New technology for preparation of high purity silver by electrolysis using copper-ions free electrolyte[J]. Hydrometallurgy of China, 2013, 32(5): 323-325. [18] 刘 丹, 李轶韬, 贺......
Effect of Oxide Assisted Metal Nanoparticles on Microstructure and Morphology of Gallium oxide Nanowires Ki-Won KIM1,Yoo-Young KIM2,Hyo-Jun AHN1,Gyu-Bong CHO1,Kyo-Hong CHOI1,Kwon-Koo CHO1 (1.School... of β-Ga2O3 nanowires on oxide-assisted transition metal are limited to nickel or cobalt oxide catalyst. In this work, Gallium oxide (β-Ga2O3 ) nanowires were synthesized by a simple thermal......
High pressure luminescence studies of europium doped GaN M.Spencer1,W.Jadwisie2,T.Thomas1,K.Wisniewski3 (1.Second of Electrical and Computer Engineering,Cornell University,Ithaca NY,14853,USA;2.n)czak(n;3.Institute of of Experimental Physics,Gdahsk University,ul.Wita Stwosza 57,Gdansk,80-952,Poland) Abstract:We reported on the high pressure luminescence spectra of polycrystalline Eu-doped GaN......
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高纯铁制备技术综述 张力1,徐志高1,罗远辉1,孙辉1,王力军1 (1.北京有色金属研究总院,北京,100088) 摘要:本文介绍了溶剂萃取,离子交换,电解精炼和区域熔炼等冶金提纯方法在高纯铁制备过程中的应用.采用溶剂萃取法和离子交换法,可以除去溶液中的大多数金属杂质,得到纯度为4N的高纯铁溶液.通过氢还原或电解精炼,可进一步去除杂质元素并获得纯度为6N的金属铁材料.区域熔炼法可对铁进行进一步精炼,使纯度达到极限.对不同的原料纯度以及不同的产品纯度要求,采用的工艺方法也有相应的变化,但一般采用几种方法相结合的工艺路线制备品质优良的高纯铁. 关键词:高纯铁; 溶剂萃取; 离子交换; 电解精炼; 区域熔炼; high purity iron; solvent extraction; ion exchange; electrolysis refining,zone melting......
; 文献标识码: A Effect of direction change of shear deformation on rolling textures in high purity Al foils DENG Yun-lai, ZHANG Xin-ming, TANG Jian-guo, LIU Ying, CHEN Zhi-yong, ZHOU Zhuo-ping (School of Materials Science and Engineering, Central South University, Changsha 410083, China) Abstract: Effect of direction change of shear deformation on the rolling textures in high purity Al......
Determination of Trace Non Rare Earth Elements in High Purity Rare Earth Oxides by ICP－AES with Microcolumn Preconcentration in a Flow Injection System吉红念,廖振环,江祖成,谢金娥摘 要:ＤｅｔｅｒｍｉｎａｔｉｏｎｏｆＴｒａｃｅＮｏｎＲａｒｅＥａｒｔｈＥｌｅｍｅｎｔｓｉｎＨｉｇｈＰｕｒｉｔｙＲａｒｅＥａｒｔｈＯｘｉｄｅｓｂｙＩＣＰ－ＡＥＳｗｉｔｈＭｉｃｒｏｃｏｌｕｍｎＰｒｅｃｏｎｃｅｎｔｒａｔｉｏｎｉｎａＦｌｏｗＩｎｊｅｃｔｉｏｎＳｙ...关键词:......
Determination of Trace Amount of Vanadium in High Purity Y2O3 by Electrothermal Vaporization－ICP－AES With Bi(PDC)3 Coprecipitation胡斌,杨波涌,曾纪铭,江祖成,曾云鹗摘 要:ＤｅｔｅｒｍｉｎａｔｉｏｎｏｆＴｒａｃｅＡｍｏｕｎｔｏｆＶａｎａｄｉｕｍｉｎＨｉｇｈＰｕｒｉｔｙＹ２Ｏ３ｂｙＥｌｅｃｔｒｏｔｈｅｒｍａｌＶａｐｏｒｉｚａｔｉｏｎ－ＩＣＰ－ＡＥＳｗｉｔｈＢｉ(ＰＤＣ)３ＣｏｐｒｅｃｉｐｉｔａｔｉｏｎＨｕＢｉｎ；Ｙａ?..关键词:......
