Direct and derivative spectrophotometric determination of iron(III) with 2,4-dihydroxy benzaldehyde isonicotinoyl hydrazone in plant and pharmaceutical samples

被引：0

作者：

Babaiah, O ^{[1
]}

Satyanarayana, K ^{[1
]}

Reddy, PR ^{[1
]}

Reddy, VK ^{[1
]}

Reddy, TS ^{[1
]}

机构：

[1] Sri Krishnadevaraya Univ, Dept Chem, Anantapur 515003, Andhra Pradesh, India

来源：

JOURNAL OF THE INDIAN CHEMICAL SOCIETY | 2005年 / 82卷 / 03期

关键词：

D O I：

暂无

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A simple, sensitive and selective spectrophotometric method has been developed for the determination of iron((III)) in aqueous solution. The metal ion forms yellowish-brown coloured, soluble complex with 2,4-dihydroxy benzaldehyde isonicotinoyl hydrazone (2,4-DHBINH) at. pH 3.0 with lambda(max) at 400 nm. Beer's law is obeyed in the range 0.07-2.20 mu g/ml(-1) of Fe-III. The molar absorptivity and the Sandell's sensitivity of the method are 1.75 +/- 0.025 x 10(4) L mol(-1) cm(-1) and 0.0034 mu g cm(2) at 400 run respectively. The interference of various ions has been studied. The complex has a 1 : 1 [Fe-III : 2,4-DHBINH] stoichiometry. A method for the determination of Fell' by first order derivative spectrophotometry has also been proposed.

引用

页码：269 / 271

页数：3

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