磷矿中稀土总量和铈组稀土含量的测定  

Determination of Total Rare Earths and Cerium Group in Phosphates

作　　者：王家风[1] 任建民[1] 丁儒乾 魏永巨[1] 周正敏 

机构地区：[1]河北师范学院化学系

出　　处：《岩矿测试》1989年第4期293-296,共4页Rock and Mineral Analysis

摘　　要：本文采用TBA做显色剂,光度法测定磷矿中稀土总量并用Mn-CyDTA做钇组稀土的掩蔽剂测定铈组稀土含量。其结果满意。A method is developed to determine the total rare earths as well as the cerium group in phosphates by spectrophotometry using TBA as chromo-genic reagent. The cerium group rare earths can be determined in a HAc-NaAe buffer (pH 3.2-3.4)using Mn-CyDTA to mask the yttrium group. The results are satisfactory.

关 键 词：磷矿 稀土总量 铈组稀土 测定 

分 类 号：O614.33[理学—无机化学]