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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Description/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).
| Item Type: | Article |
|---|---|
| ISSNs: | 0304-4203 (print) |
| 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 |
| Item ID: | 333604 |
| Date Deposited: | 02 Mar 2012 09:55 |
| Last Modified: | 02 Mar 2012 09:55 |
| Contributors: | Meyer, David (Author) Prien, Ralf D. (Author) Dellwig, Olaf (Author) Connelly, Douglas P. (Author) Schulz-Bull, Detlef E. (Author) |
| Date: | February 2012 |
| Status: | Published |
| URI: | http://eprints.soton.ac.uk/id/eprint/333604 |
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