PYRIDINE-2-CARBALDEHYDE 2-HYDROXYBENZOYLHYDRAZONE AS A SELECTIVE REAGENT FOR THE EXTRACTION AND SPECTROPHOTOMETRIC DETERMINATION OF IRON(II)

被引：83

作者：

GALLEGO, M ^{[1
]}

GARCIAVARGAS, M ^{[1
]}

VALCARCEL, M ^{[1
]}

机构：

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

来源：

ANALYST | 1979年 / 104卷 / 1240期

关键词：

Iron determination; Spectrophotometry;

D O I：

10.1039/an9790400613

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Pyridine-2-carbaldehyde 2-hydroxybenzoylhydrazone reacts with iron(II) to produce a green 2:1 complex (λmax. = 620 nm, ∈ = 3.64 × 103 l mol-1 cm-1 in aqueous ethanolic solution, and λmax. = 640 nm, ∈ = 3.67 × 103 l mol-1 cm-1 in chloroform). The green complex, extracted into chloroform, has been used for the spectrophotometric determination of trace amounts of iron. The method has a high selectivity and has been applied to the determination of iron in different samples, such as industrial waste water, non-ferrous materials and minerals.

引用

页码：613 / 619

页数：7

共 17 条

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