SPECTROPHOTOMETRIC DETERMINATION OF CE(IV) USING O-PHENYLENEDIAMINE IN STEELS

被引：4

作者：

AGRAWAL, A

SEKHAR, KC

PANDEY, LP

机构：

[1] Analytical Chemistry Division, National Metallurgical Laboratory, Jamshedpur

来源：

BULLETIN OF MATERIALS SCIENCE | 1994年 / 17卷 / 07期

关键词：

CERIUM; O-PHENYLENEDIAMINE; CE(IV) IN STEEL; SPECTROPHOTOMETRY;

D O I：

10.1007/BF02747244

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A simple and sensitive spectrophotometric method for the determination of cerium(IV) was developed. With o-phenylenediamine cerium(IV) gives an orange-red colour with an absorption maximum at 470 nm. The system obeys Beer's law in the range 7 ppm to 500 ppm with a molar absorptivity of 2.4 x 10(3) l mol(-1) cm(-1) and Sandell sensitivity of 0.5 ppm. Interference by various ions was studied. This method was used for the determination of cerium in low-alloy steels and the results are in good agreement with the certified values.

引用

页码：1467 / 1471

页数：5

共 28 条

[1] BIBLIOGRAPHICAL STUDY OF EFFECT OF RARE-EARTH METAL ADDITIONS ON PROPERTIES OF STEEL [J].