Diformylhydrazine as analytical reagent for spectrophotometric determination of iron(II) and iron(III)

被引：0
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作者：
B. Nagabhushana
G. Chandrappa
B. Nagappa
N. Nagaraj
机构：
[1] Department of Chemistry,
[2] M.S. Ramaiah Institute of Technology,undefined
[3] Bangalore-560054,undefined
[4] India,undefined
[5] Laboratoire de Chimie de la Matière Condensée,undefined
[6] Université Pierre et Marie Curie (Paris VI – tour 54 E5),undefined
[7] 4 place Jussieu,undefined
[8] 75252 Paris,undefined
[9] France,undefined
[10] Karnataka State Pollution Control Board,undefined
[11] Bangalore–560001,undefined
[12] India,undefined
来源：
Analytical and Bioanalytical Chemistry | 2002年 / 373卷
关键词：
Diformylhydrazine reagent Iron(III)–diformylhydrazine complexes Iron(II) determination Iron(III) determination Spectrophotometry.;
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摘要：
The bidentate ligand diformylhydrazine (OHC–HN–NH–CHO), DFH, combines with iron(II) and iron(III) in alkaline media in the pH range 7.3–9.3 to form an intensely colored red–purple iron(III) complex with an absorption maximum at 470 nm. Beer's law is obeyed for iron concentrations from 0.25 to 13 µg mL–1. The molar absorptivity was in the range 0.3258×104–0.3351×104 L mol–1 cm–1 and Sandell's sensitivity was found to be 0.0168 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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页码：299 / 303
页数：4
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