波长色散X射线荧光光谱法测定钴精矿中钴、铜和锰  

Determination of Cobalt,Copper and Manganese in Cobalt Concentrate by Wavelength Dispersive X-ray Fluorescence Spectrometry

作　　者：封亚辉 侯建军 潘生林 戴东情 王旭宁 张秀 许仁富 孟庆森 FENG Yahui;HOU Jianjun;PAN Shenglin;DAI Dongqing;WANG Xuning;ZHNAG Xiu;XU Renfu;MENG Qingsen(Nanjing Customs Industrial Products Testing Center,Nanjing,Jiangsu 210001,China;Nanjing Jinli Inspection Limited Company,Nanjing,Jiangsu 210002,China)

机构地区：[1]南京海关工业产品检测中心,南京210001 [2]南京金利检验有限公司,南京210002

出　　处：《中国无机分析化学》2021年第4期13-18,共6页Chinese Journal of Inorganic Analytical Chemistry

基　　金：进口大宗资源商品属性编码研究与应用(2021KJ03);国家重点研发计划(2018YFF0215500)。

摘　　要：采用高纯氧化物经四硼酸锂和偏硼酸锂熔融制备人工标准样品,以氧化镱为内标,制作校准曲线,建立了波长色散型X射线荧光光谱法测定钴精矿中钴、铜、锰元素的分析方法。重点研究了混合熔剂、试样稀释比、氧化剂和内标选择、方法检出限、方法准确度和精密度等,结果表明,各元素校准曲线线性范围宽,相关系数均大于0.999,钴、铜、锰元素检出限分别达到0.002%、0.001%和0.001%,方法的准确度和精密度可靠,满足行业检测需求。A method for the determination of cobalt,copper and manganese in cobalt concentrate by wavelength dispersive X-ray fluorescence spectrometry was established.The artificial standard sample was prepared by melting high-purity oxides with lithium tetraborate and lithium metaborate.The calibration curve was made with ytterbium oxide as internal standard.The results show that the calibration curve of each element has a wide linear range,the correlation coefficient is greater than 0.999,and the detection limits of cobalt,copper and manganese are 0.002%,0.001%and 0.001%respectively.The test accuracy and precision are reliable,and the method meets the needs of the industry testing.

关 键 词：X射线荧光光谱法 钴精矿 钴 铜 锰 熔融制样 

分 类 号：O657.34[理学—分析化学] TH744.16[理学—化学]