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Title of Journal: Anal Bioanal Chem

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Abbravation: Analytical and Bioanalytical Chemistry

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Springer Berlin Heidelberg

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DOI

10.1007/bf00389692

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1618-2650

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Diformylhydrazine as analytical reagent for spectr

Authors: B Nagabhushana G Chandrappa B Nagappa N Nagaraj
Publish Date: 2014/04/13
Volume: 373, Issue: 4-5, Pages: 299-303
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Abstract

The bidentate ligand diformylhydrazine OHC–HN–NH–CHO DFH combines with ironII and ironIII in alkaline media in the pH range 73–93 to form an intensely colored red–purple ironIII complex with an absorption maximum at 470 nm Beers law is obeyed for iron concentrations from 025 to 13 µg mL–1 The molar absorptivity was in the range 03258×104–03351×104 L mol–1 cm–1 and Sandells sensitivity was found to be 00168 µg cm–2 The method has been applied to the determination of iron in industrial waste ground water and pharmaceutical samples

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