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concentration in CaSO4-Ca(OH)2-H2O system PENG Xiao-yu1, 2, WANG Yun-yan1, CHAI Li-yuan1, SHU Yu-de1 (1. School of Metallurgical Science and Engineering, Central South University, Changsha 410083... industrial wastewater, Pitzer theory was adopted to calculate the equilibrium concentration of sulfate in CaSO4-Ca(OH)2-H2O system at different pH through C++ language programming, and the effect of Na......
ICP-MS法在测定痕量贵金属中的应用 李简1,刘彬1,冯玉怀3,杨丙雨1 (1.西北大学,分析科学研究所,陕西,西安,710069;2.咸阳师范学院,化学系,陕西,咸阳,712000;3.西北有色地质研究院,陕西,西安,710054) 摘要:ICP-MS法是测定痕量和超痕量元素的一种分析手段,我国应用该法测定贵金属已有十多年历史,近年来的研究应用发展较快.论文简单介绍了ICP-MS法的分析性能及其测定贵金属的分析程序;着重介绍了我国分析工作者用ICP-MS法测定贵金属在岩矿分析,金属材料分析和环境生物样品分析中的研究应用概况.引用文献97篇. 关键词:分析化学; 贵金属; 电感耦合等离子体质谱法; 岩矿分析; 材料分析; 环境和生物样品分析; analytical chemistry; precious metals; inductively coupled plasma......
and the cavitation effects. As compared to other 3d transition metals, Cu was found to be the most effective one in improving anatase photocatalytic effects. In addition, greater Cu concentration doped...A Fundamental DFT Study of Anatase(TiO2) Doped with 3d Transition Metals for High Photocatalytic Activities刘晓烨1,李育彪2,3,WEI Zhenlun2,SHI Ling11. Hubei Key Laboratory of Industrial Fume and Dust......
Effects of ammonia concentration in hydrothermal treatment on structure and redox properties of cerium zirconium solid solutionYunhan Zhang1,2,3,Meisheng Cui1,2,3,Hao Wang1,2,4,Zheng... for Nonferrous Metals摘 要:Cerium zirconium solid solution is a key washcoat material for automotive three-way catalysts(TWCs).However,improving the redox ability......
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J. Cent. South Univ. Technol. (2009) 16: 0043-0048 DOI: 10.1007/s11771-009-0007-5 Carburization of ferrochromium metals in chromium ore fines containing coal during voluminal reduction by microwave... in the reduced materials forms before the high-C-Cr ferrochromium metal phase does. With increasing temperature the C content of ferrochromium metals is in a positive correlation with the content of Cr. The C......
Recovery of valuable metals from waste diamond cutters through ammonia–ammonium sulfate leachingPing Xue1,2,Guang-qiang Li1,Yong-xiang Yang1,3,Qin-wei Qin1,Ming-xing Wei21. Key Laboratory for Ferrous...); stirring speed, 200 r/min; ammonia concentration, 4.0 mol/L; ammonium sulfate concentration, 1.0 mol/L; and air flow rate, 0.2 L/min. The results of the kinetics study indicated that the leaching......
, including acid-extractable (E1), reducible (E2), oxidizable (E3) in vegetables soils, respectively 表3 有色金属矿冶区蔬菜中重金属含量 Table 3 Concentration of heavy metals in vegetables from non-ferrous mining and smelting areas w/(mg?kg-1) 表4 蔬菜与土壤中重金属含量之间的相关性分析 Table 4 Correlative analysis between concentration of metals in vegetables......
Anneal and Concentration Effect on PL Properties of Sol-Gel Derived Eu3+ Doped SiO2 Glass Zhu Huiqun1,Wang Yi1,Ling Langsheng2,Ding Ruiqin1 (1.Institute of Thin Film and Nano Materials, Wuyi... different Eu3+ doping concentration were studied systematically. It is found that the optimized anneal time is about 3 h. The excitation spectra of 2% Eu3+ doped SiO2 glass powder were measured under various......
; concentration polarization 铝是地壳中储存量最多的金属元素之一,以其无毒,导热,导电,质轻,装饰性能好等优点被广泛应用于金属材料的表面防护.铝镀层的制备方法很多,主要有热浸[1-2],热喷涂