ICP-AES法对铬铁矿中的多种元素进行定性与定量分析  

Qualitative and Quantitative Analysis of Various Elements in Chromite Ore by ICP-AES

作　　者：张洋[1,2] 郑诗礼[1] 王晓辉[1,2] 徐红彬[1] 张懿[1] 

机构地区：[1]中国科学院过程工程研究所绿色过程与工程院重点实验室,北京100190 [2]中国科学院研究生院,北京100049

出　　处：《光谱学与光谱分析》2010年第1期251-254,共4页Spectroscopy and Spectral Analysis

基　　金：国家"973"项目课题(2007CB613500);国家"十一五""863"课题(2006AA06Z129);国家"十一五"科技支撑计划重大项目课题(2006BAC02A05)资助

摘　　要：采用ICP-AES法对铬铁矿首先进行定性分析,确定了铬铁矿中含有的元素种类;经过分析发现铬铁矿中含有Cr,Fe,Al,Mg,Zn,Co,Ni等29种元素。然后根据定性分析的结果,对铬铁矿中的主要元素Cr,Fe,Al,Mg,Ca,Ti,Si,Mn,V的含量进行测量。铬铁矿样品的前处理分两步进行,首先用碳酸钠-四硼酸钠在950℃下熔融30 min,然后用稀盐酸在80℃下浸取10 min,即可将样品完全溶解。实验结果表明,该方法的相对标准偏差为0.48%～2.05%,加标回收率为90.5%～111.3%,分析精确度满足要求。Kind of the elements in chromite ore was firstly determined by ICP-AES. Twenty nine elements, such as Cr, Fe, Al, Mg, Zn, Co and Ni, were contained in the chromite sample based on the qualitative analysis. Then the contents of main elements Cr, Fe, Al, Mg, Ca, T, Si, Mn and V were measured. The chromite samples processing procedures have two steps, the first is decomposition by nitrate carbonate and sodium tetraborate at 950 ℃ for 30 min, then leaching by dilute hydrochloric acid at 80 ℃ for 10 min. The method showed satisfactory precision and accuracy with the RSDs between 0. 48% and 2.05% and the recovery rates between 90.5% and 111.3%.

关 键 词：ICP-AES 铬铁矿 定性分析 定量分析 

分 类 号：O657.3[理学—分析化学]