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Determination of iron in seawater

Achterberg, E.P., Holland, T.W., Bowie, A.R., Mantoura, R.F.C. and Worsfold, P.J. (2001) Determination of iron in seawater Analytica Chimica Acta, 442, pp. 1-14. (doi:10.1016/S0003-2670(01)01091-1).

Record type: Article


Iron plays an important role in oceanic biogeochemistry and is known to limit biological activity in certain ocean regions. Such regions have a replete complement of major nutrients but low primary production of phytoplankton due to low ambient iron concentrations. The determination of iron in seawater is a major challenge, although much progress has been made during the last two decades. Techniques for total dissolved iron and iron speciation have been developed in order to rationalise its biogeochemical cycling and better understand its role in limiting phytoplankton growth. In this paper, a critical review of historical and current analytical methods for the determination of iron in seawater is presented and their capabilities evaluated. The need for standard protocols for the clean sampling and storage of low-level (<1 nM) iron seawater in order to maintain sample integrity is emphasised. The importance of laboratory and shipboard intercomparison exercises to distinguish between environmental variability and operationally measured fractions is also considered.

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Published date: 2001
Keywords: Iron determinations, Seawater, Iron speciation, Iron biogeochemistry, Intercomparison


Local EPrints ID: 12559
ISSN: 0003-2670
PURE UUID: 0a2596b7-649a-4171-ae5a-52a87bb588fc

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Date deposited: 26 Nov 2004
Last modified: 17 Jul 2017 17:02

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Author: E.P. Achterberg
Author: T.W. Holland
Author: A.R. Bowie
Author: R.F.C. Mantoura
Author: P.J. Worsfold

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