分光光度法测定磷矿中稀土含量的研究  

Study on Determination of Rare Earth Content in Phosphate Rock Using Spectrophotometry

作　　者：张勇[1] 谢旭东 罗骏[1] 周骏宏[1] 

机构地区：[1]黔南民族师范学院化学与化工系,贵州都匀558000

出　　处：《硫磷设计与粉体工程》2017年第6期7-10,共4页Sulphur Phosphorus & Bulk Materials Handling Related Engineering

摘　　要：介绍了分别采用三溴偶氮胂和偶氮胂Ⅲ在酸性介质中光度测定磷矿中稀土含量的方法,对多种磷矿样品实测结果表明,该方法较简便,灵敏度高,选择性好,可以对低含量的稀土进行较为准确的测量。The methods for determining rare earth content in the phosphate rock by spectrophotometry respectively using tribromoarsenazo and ArsenazoⅢ in acidic medium are presented. Actual measurement results for multiple phosphate rock samples show that the method features simple operation,high sensitivity,and excellent selectivity,which is good for accurate measurement of low level rare earth.

关 键 词：稀土 三溴偶氮胂 偶氮胂Ⅲ 磷矿 分光光度法 

分 类 号：O657.3[理学—分析化学] P619.2[理学—化学]