SIMULTANEOUS DETERMINATION OF TRACES OF IMPURITIES IN HIGH-PURITY MOLYBDENUM AND MOLYBDENUM TRIOXIDE BY COPRECIPITATION AND INDUCTIVELY COUPLED PLASMA-ATOMIC EMISSION-SPECTROMETRY

被引：25

作者：

KUJIRAI, O

YAMADA, K

KOHRI, M

OKOCHI, H

机构：

[1] National Research Institute for Metals, Tokyo, 153, Nakameguro, Meguro-ku

来源：

FRESENIUS JOURNAL OF ANALYTICAL CHEMISTRY | 1991年 / 339卷 / 03期

关键词：

D O I：

10.1007/BF00324398

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Inductively coupled plasma-atomic emission spectrometry (ICP-AES) has been developed for a simultaneous determination of traces of non-hydride-forming elements in high-purity Mo and molybdenum trioxide. Coprecipitation of diverse elements with lanthanum hydroxide is used to separate them from the Mo matrix and for concentration. Effects of pH and amount of La on the recoveries of diverse elements are discussed. Ten elements (Co, Cr, Cu, Fe, Mn, Ni, Ti, V, Zn and Zr) are quantitatively recovered and determined. Matrix-matched calibration solutions are used for the determination.

引用

页码：133 / 136

页数：4

共 17 条

[11] DETERMINATION OF TRACES OF TITANIUM DOWN TO SUB-PART-PER-MILLION LEVELS IN MOLYBDENUM METAL AND COMPOUNDS BY ION-EXCHANGE CHROMATOGRAPHY/SPECTROPHOTOMETRY [J].