The ferrozine method revisited: Fe(II)/Fe(III) determination in natural waters

被引：1073

作者：

Viollier, E ^{[1
]}

Inglett, PW ^{[1
]}

Hunter, K ^{[1
]}

Roychoudhury, AN ^{[1
]}

Van Cappellen, P ^{[1
]}

机构：

[1] Georgia Inst Technol, Sch Earth & Atmospher Sci, Atlanta, GA 30332 USA

来源：

APPLIED GEOCHEMISTRY | 2000年 / 15卷 / 06期

关键词：

iron speciation; fresh and marine water; spectrophotometry; ferrozine;

D O I：

10.1016/S0883-2927(99)00097-9

中图分类号：

P3 [地球物理学]; P59 [地球化学];

学科分类号：

0708 ; 070902 ;

摘要：

The original ferrozine method has been modified to sequentially determine the Fe(II)/Fe(III) speciation in small volumes of fresh and marine water samples, at the submicromolar level. Spectrophotometric analyses of the Fe(II)ferrozine complex are performed on a single aliquot before and after a reduction step with hydroxylamine. The procedure is calibrated using Fe(III) standards stable under normal conditions of analysis. It is shown also that the presence of high concentrations of dissolved NOM (natural organic matter) do not create any significant artifacts. The method was used to measure Fe(II) and Fe(III) depth distribution in salt marsh pore waters and in a stratified marine basin. (C) 2000 Elsevier Science Ltd. All rights reserved.

引用

页码：785 / 790

页数：6

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