电感耦合等离子发射光谱法测铬矿石中铁、铝、钙、镁含量  

ICP-OES Determination of Aluminum,Magnesium,Calcium and Iron in Chromium Ore

作　　者：覃远玲 Qin Yuanling(Fujian Province Metallurgical Industry Design Institute Co.,Ltd.,Fuzhou 350011,Fujian)

机构地区：[1]福建省冶金工业设计院有限公司,福建福州350011

出　　处：《福建冶金》2020年第3期38-40,28,共4页Fujian Metallurgy

摘　　要：在五氧化二钒存在下,采用硫酸,磷酸溶解铬矿石样品,消解后的溶液分别选择259.941nm、394.401nm、422.673nm、285.213nm作为Fe、Al、Ca、Mg的分析谱线,用电感耦合等离子体原子光谱发射仪测定元素含量。该方法的精密度(RSD,n=10)为1.11%~4.10%,元素回收率在93.75%~103.75%之间。按此方法对国家标准样品进行分析,测定值与认定值基本一致。A method for the determination of Fe,Al,Ca,Mg in chromium ore by Inductively coupled plasma atomic emission spectrometry with sulfuric acid and phosphoric acid dissolving chromium ore sample and divanadium pentaoxide as catalyst was developed.259.941 nm,394.401 nm,422.673 Nm and 285.213 nm were selected as the analytical lines of Fe,Al,Ca and Mg.The precision(RSD,n=10)of this method is 1.11%~4.10%,and the recovery of elements is 93.75%~103.75%.According to this method,the national standard articles are analyzed,and the determined value is basically consistent with the certified value.

关 键 词：铬矿石 ICP-OES 国家标准物质 铁 铝 钙 镁 

分 类 号：O657.31[理学—分析化学] TF041[理学—化学]