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In situ determination of iron(II) in the anoxic zone of the central Baltic Sea using ferene as spectrophotometric reagent

Meyer, David, Prien, Ralf D., Dellwig, Olaf, Connelly, Douglas P. and Schulz-Bull, Detlef E. (2012) In situ determination of iron(II) in the anoxic zone of the central Baltic Sea using ferene as spectrophotometric reagent Marine Chemistry, 130-131, pp. 21-27. (doi:10.1016/j.marchem.2011.12.002).

Record type: Article

Abstract

Continuous flow analysis for soluble Fe(II) species in seawater was performed with a colorimetric method using ferene as a spectrophotometric reagent. The method is based on the measurement of absorbance of the [FeII(fer)3]4 --complex at 594 nm. No preconcentration-steps are required. Samples prepared in the laboratory in line with external calibration experiments have been successfully analyzed in the nanomolar range (R2 = 0.959). A detection limit of 20 nM was obtained. Furthermore, investigations were performed in situ with a wet chemical analyzer in the water column of the central Baltic Sea. Finally the results were consistent with measurements made by an independent laboratory based method (ICP-OES).

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More information

Published date: February 2012
Keywords: Seawater, Redoxcline, Ferene, In situ measurements, Iron(II) sensor, Speciation
Organisations: Marine Geoscience

Identifiers

Local EPrints ID: 333604
URI: http://eprints.soton.ac.uk/id/eprint/333604
ISSN: 0304-4203
PURE UUID: 2a55539e-d117-4f73-abfc-defb4aeec871

Catalogue record

Date deposited: 02 Mar 2012 09:55
Last modified: 18 Jul 2017 06:12

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Contributors

Author: David Meyer
Author: Ralf D. Prien
Author: Olaf Dellwig
Author: Douglas P. Connelly
Author: Detlef E. Schulz-Bull

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