CONCENTRATION AND SPECTROPHOTOMETRIC DETERMINATION OF MOLYBDENUM WITH THIOCYANATE AND RHODAMINE 6G

被引：0

作者：

RAO, TP ^{[1
]}

RAMAKRISHNA, TV ^{[1
]}

机构：

[1] INDIAN INST TECHNOL, DEPT CHEM, MADRAS 600036, INDIA

来源：

BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN | 1980年 / 53卷 / 08期

关键词：

SPECTROPHOTOMETERS;

D O I：

10.1246/bcsj.53.2380

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A method is described for the determination of molybdenum based on reaction with potassium thiocyanate and Rhodamine 6G in 0. 55 - 0. 8 mol dm** minus **3 hydrochloric acid medium. The method is sensitive ( epsilon equals 2. 63 multiplied by 10**5 1 mol** minus **1 cm** minus **1) and obeys Beer's law over the range 0. 04 - 0. 24 ppm of molybdenum. Selectivity can be considerably improved by collecting molybdenum on iron(III) hydroxide. In conjunction with the collection procedure, the method is useful to determine as low as 5 ppb of molybdenum present in 100 cm**3 of aqueous samples.

引用

页码：2380 / 2383

页数：4

共 9 条

[1] ANALYTICAL APPLICATIONS OF TERNARY COMPLEXES .7. ELUCIDATION OF MODE OF FORMATION OF SENSITIZED METAL-CHELATE SYSTEMS AND DETERMINATION OF MOLYBDENUM AND ANTIMONY [J].