ANALYTICAL APPLICATIONS OF PICOLINEALDEHYDE SALICYLOYLHYDRAZONE .2. EXTRACTION AND SPECTROPHOTOMETRIC DETERMINATION OF VANADIUM(V)

被引：27

作者：

GALLEGO, M

GARCIAVARGAS, M

VALCARCEL, M

机构：

[1] UNIV SEVILLA,FAC SCI,DEPT ANALYT CHEM,SEVILLA 4,SPAIN

[2] UNIV CORDOBA,FAC SCI,DEPT ANALYT CHEM,CORDOBA,SPAIN

来源：

MICROCHEMICAL JOURNAL | 1979年 / 24卷 / 02期

关键词：

D O I：

10.1016/0026-265X(79)90115-2

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Picolinealdehyde salicyloylhydrazone reacts with vanadium(V) to produce a yellow 1:1 complex (λmax = 400 nm, ε{lunate} = 2.17 × 104 liters · mol-1 cm-1) in aqueous ethanolic solution. The yellow complex can be extracted into chlorobenzene (λmax = 425 nm, ε{lunate} = 2.16 × 104 liters · mol-1 cm-1) and used for the spectrophotometric determination of trace amounts of vanadium. Interferences have been investigated. The method has been applied to the determination of vanadium in steel and in lead concentrates. © 1979.

引用

页码：143 / 149

页数：7

共 8 条

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[4] ANALYTICAL APPLICATIONS OF PICOLINEALDEHYDE SALICYLOYLHYDRAZONE - SPECTROPHOTOMETRIC DETERMINATION OF NICKEL AND ZINC
GALLEGO, M
GARCIAVARGAS, M
PINO, F
VALCARCEL, M
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