| 高灵敏分光光度法测定微量铌 |
| |
| 引用本文： | 朝君. 高灵敏分光光度法测定微量铌[J]. 萍乡高等专科学校学报, 1996, 0(4) |
| |
| 作者姓名： | 朝君 |
| |
| 摘 要： | 基于铌钼杂多酸与丁基罗丹明B(BRB)和聚乙烯醇(PVA)可以形成稳定的离子缔合物,建立了在水相中直接测定微量铌的新方法.研究了缔合物的形成条件,方法的灵敏度高,其ε值为 7.5×10~5L·mol~(-1)·cm~(-1),已成功地应用于钢中铌的测定.
|
| 关 键 词： | 直接光度法 微量铌 高灵敏度 |
High Sensitive Spectrophotometric Method of Determing Trace Niobium |
| |
| Chao Jun. High Sensitive Spectrophotometric Method of Determing Trace Niobium[J]. Journal of Pingxiang College, 1996, 0(4) |
| |
| Authors: | Chao Jun |
| |
| Abstract: | A new sensitive Spectrophotometric method of directly determing microamounts of Niobium is estabilished in water. The method is based on the formation of the ion -association complex of Molybdoniobic acid with Butyle Rhodamine B (BRB) in the presence of Polyvinyl Alcohol (PVA). The formation conditions was studied. The method has high sensitivty. e=7. 5x 105 1. mol-1.cm-1. Thhe method has been applied to determina tion of trace Niobium ni steel. |
| |
| Keywords: | direct spectrophotometry trace Niobium high sensitivity |
| 本文献已被 CNKI 等数据库收录！ |
