| 偶氮氯磷-mN直接光度法测定矿石中铈族稀土元素 |
| |
| 引用本文： | 叶年咏.偶氮氯磷-mN直接光度法测定矿石中铈族稀土元素[J].岩石矿物学杂志,1983,2(3):222-223. |
| |
| 作者姓名： | 叶年咏 |
| |
| 作者单位： | 广东省地质局第九实验室 |
| |
| 摘 要： | 本文研究了偶氮氯膦-mN在磷酸—草酸—焦磷酸钠体系中以锌-EDTA二乙酯作缓冲掩蔽剂①在钇族稀土和常见元素存在下,不经分离,直接测定铈族稀土元素的可能性。一、实验部分偶氮氯膦-mN:0.05%水溶液(上海师大)。Zn-EDTA二乙酯0.15%水溶液:称取EDTA二乙酯15克,乙酸锌15克溶于1000毫升水中,摇均。混合铈组稀土标准:用光谱纯的稀土氧化物按
|
Direct Spectrophotometric Determination of Microamount of Cerium-Group Rare Earths in Minerals and Rocks with Chlorophosphonazo-mN |
| |
| Abstract: | This paper presents a direct rapid spectrophotometric method to deter-
mine the cerium-group rare earth elements in minerals and rocks with
chlorophosphonazo-mN as a developing reagent. Oxalic acid, phosphoric acid
a} sodium pyrophosphate were used as masking agents for yttrium-group
earths and Zn-EDTA-diethylester as masking agent for other foreign ions. |
| |
| Keywords: | |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《岩石矿物学杂志》浏览原始摘要信息 |
| 点击此处可从《岩石矿物学杂志》下载免费的PDF全文 |
|
