ABSORPTIOMETRIC DETERMINATION OF TRACES OF IRON EXTRACTED AS FERROIN THIOCYANATE

被引：18

作者：

RAO, VPR

RAO, KV

SARMA, PVR

机构：

来源：

TALANTA | 1969年 / 16卷 / 02期

关键词：

D O I：

10.1016/0039-9140(69)80279-1

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Iron up to 3 ppm can be absorptiometrically determined by extracting the ferroin-thiocyanate complex at pH 1 into isobutyl methyl ketone (IBMK). At this pH thiocyanate itself reduces iron(III) so reductants such as hydroxylamine are not needed. The complex is very stable and has a molar absorptivity of 20·5 × 103 in IBMK at 525 nm. Most of the substances associated with iron in minerals and alloys do not interfere and methods are suggested for the elimination of the effect of those which do. © 1969.

引用

页码：277 / &

共 6 条

[1]

DIEHL H, 1958, TALANTA, V1, P76

[2]

LUKE GL, 1966, ANALYT CHIM ACTA, V36, P122

[3] SPECTROPHOTOMETRIC DETERMINATION OF IRON IN VANADIUM, CHROMIUM, MANGANESE, NICKEL, AND ZINC - 1,10-PHENANTHROLINE RATE PHENOMENA [J].