Speciation of iron in river and tap waters by catalytic spectrophotometry using oxidation of o-phenylenediamine with hydrogen peroxide

A new sensitive catalytic method for the determination of labile iron has been developed using iron-catalyzed oxidation of o-phenylenediamine (OPDA) with hydrogen peroxide at pH 4.5 and 40°C. Absorbance ( A) of the oxidized OPDA was monitored at 450 nm for a reaction time ( t) of 10 min. The calibra...

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Veröffentlicht in:	Analytica chimica acta 1999-05, Vol.388 (1), p.35-43
Hauptverfasser:	Kawakubo, Susumu, Hagihara, Yuki, Honda, Yukiko, Iwatsuki, Masaaki
Format:	Artikel
Sprache:	eng
Schlagworte:	Analytical chemistry Applied sciences Catalytic spectrophotometry Chemistry Continental surface waters Exact sciences and technology Labile iron Natural water pollution o-Phenylenediamine Pollution Speciation Spectrometric and optical methods Water sample Water treatment and pollution
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