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, 21-27. (doi:10.1016/j.marchem.2011.12.002).
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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).
|Digital Object Identifier (DOI):||doi:10.1016/j.marchem.2011.12.002|
|Keywords:||Seawater; Redoxcline; Ferene; In situ measurements; Iron(II) sensor; Speciation|
|Subjects:||G Geography. Anthropology. Recreation > GC Oceanography
Q Science > QD Chemistry
Q Science > QE Geology
|Divisions:||National Oceanography Centre (NERC) > Marine Geoscience
|Date Deposited:||02 Mar 2012 09:55|
|Last Modified:||27 Mar 2014 20:19|
|RDF:||RDF+N-Triples, RDF+N3, RDF+XML, Browse.|
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