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high purity rare earth oxides 高纯稀土氧化物
The spectral interferences of trace elements from high purity rare earth will seriously affect the analytical accuracy in the ICP-AES analysis. 摘要在高纯稀土ICP-AES分析中，稀土基体光谱对痕量钙的光谱干扰是影响钙分析??范鹊闹饕??颉
Keywords high purity rare earth;trace analysis;SSMS; 高纯稀土;痕量分析;火花源质谱;
Micro-column Separation-ICP-MS Determination of Trace Rare Earth Impurities in High Purity Rare Earth Matrix 微柱分离ICP-MS测定高纯稀土中痕量稀土杂质研究
high purity rare earth 高纯稀土
Precipitation by oxalate is the primary method to produce rare earth oxides. 稀土草酸盐沉淀法是制备稀土氧化物的主要方法。
To achieve a series of breakthroughs in important projects in the fields of high-performance synthetic materials, vanadium, titanium, rare earth materials, high purity metallic materials and photoelectron materials. 在高性能合成材料和钒钛、稀土材料、高纯金属材料、光电子材料等方面,取得一批重大项目建设上的突破。
Catalysts for use in secondary reformer were prepared with high temperature calcined alumina as carrier,nickel as active component,and rare earth oxides with high melting point as promotor. 以高温烧结氧化铝为载体 ,镍为活性组份 ,高熔点稀土氧化物为助剂制备的二段转化炉催化剂具有使用强度高 ,耐热性能好 ,转化活性稳定、床层阻力降低等特点。
The influence of middle rare earth oxides on the activity of Pd catalyst has been discussed in this article. 本文研究了中稀土氧化物对钯催化剂活性的影响。
A deodorant catalyst CMT A composed of transition metal and rare earth oxides was prepared. 介绍了以堇青石蜂窝陶瓷薄片为载体 ,附载过渡金属及稀土金属氧化物活性组分制备的 CMT- A除臭催化剂。
The electrochemical properties of MH electrode with the addition of rare earth oxides and mixture of CoO and CoO2 are studied. 重点研究了稀土氧化物添加剂、CoO和CeO_2复合添加剂对Ni/MH电池负极电化学性能的影响。
Doped rare earth oxides have been widely used in three-way catalyst(TWC) for purification of automobile exhausts because of its special properties. 稀土元素以其特殊的物理和化学性质在汽车尾气三效净化催化剂(TWC)中获得了广泛应用。
The microstructure and properties of fused-cast 33# AZS refractory brick with additive of desilicated zirconia or rare earth oxides were studied. 熔铸33%23AZS耐火砖添加少量脱硅锆或稀土氧化物的试验结果表明：该砖的相组成与显微结构得到改善。
The performances of Composite Electrodes in welding can be much improved by adding two or more rare earth oxides which are mutually completementary. 复合电极是在钨中添加了两种或更多种的稀土氧化物，各添加物互为补充，相得益彰，使其焊接性能更出众。
The main attention focuses on the introduction of research progress on alkali and alkali earth compounds, rare earth oxides and complex oxides as catalysts since 1989. 重点介绍1989年以来对碱及碱土金属化合物、烯土氧化物、复合氧化物等各类催化剂的研究进展。
The hyphenated technique of high performance liquid chromatography with inductively coupled-atomic emission spectrometry has been studied to analyze the rare earth oxide products. 本工作研究了用高效液相色谱-电感耦合等离子体发射光谱的联用技术分析稀土混合物的方法。
The presence of rare earth oxides could promote reduction of nickel species in nickel-magnesia solid solution, especially CeO2. Therefore, NLM and NCM both showed higher activity and selectivity than the Ni/MgO catalyst NM. 所得催化剂NLM、NCM具有较大比表面和较小镍晶粒度，以NCM中镍物种的还原性能改善尤为明显。
The recent research and development of tungsten electrodes used in TIG and Plasma technologies are introduced, and the tungsten materials as well as the effects of rare earth oxides are specially discussed. 介绍了近年对TIG(钨极惰性气体保护焊)和PLASMA(等离子体)焊接、切割用钨电极材料的研究进展和应用情况 ,着重对稀土钨电极材料及稀土氧化物作用等有关研究问题进行了讨论。
The relation between the effect of adding rare earth oxides (CeO_2, Pr_2O_3 and Nd_2O_3) and their atomic number has been correlated. It was discovered that the selectivity of propene increases as the atomic number increases. 关联了CeO_2、Pr_2O_3与Nd_2O_3的稀土效应与其原子序数的关系,发现丙烯选择性随原子序数增加而提高。
Supply High Purity Germanium Bracelet. 供应高纯锗手链。