Výsledky vyhledávání - "Constant M.G. van den Berg"

Organic speciation of dissolved iron in estuarine and coastal waters at multiple analytical windows

Autor: Constant M.G. van den Berg, Sylvia G. Sander, Mahmoud M. Abualhaija, Abida Mahmood

Publikováno v: Marine Chemistry. 177:706-719

Here we use cathodic stripping voltammetry with competitive ligand exchange (CLE–CSV) to determine the speciation of Fe in samples from the Mersey River estuary and Liverpool Bay in the presence of salicylaldoxime (SA). Multiple analytical windows

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::43bba0495b03e51d560bc67812ae3c46
https://doi.org/10.1016/j.marchem.2015.11.001

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Copper-binding ligands in the NE Pacific

Autor: Constant M.G. van den Berg, Hannah Whitby, Anna M. Posacka, Maria T. Maldonado

Publikováno v: Marine Chemistry (0304-4203) (Elsevier Science Bv), 2018-08, Vol. 204, P. 36-48
Marine Chemistry
Marine Chemistry, Elsevier, 2018, 204, pp.36-48. ⟨10.1016/j.marchem.2018.05.008⟩
Marine Chemistry, 2018, 204, pp.36-48. ⟨10.1016/j.marchem.2018.05.008⟩

WOS:000443668500004; International audience; Copper distribution and speciation were determined at stations P4 and P26 along Line P as part of a GEOTRACES Process Study in the Northeast Pacific, at depths between 10 and 1400 m. Two ligand classes (L-

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1256715ac977c1c48455321edc66bc7c
https://archimer.ifremer.fr/doc/00616/72780/

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Toward a Regional Classification to Provide a More Inclusive Examination of the Ocean Biogeochemistry of Iron-Binding Ligands

Autor: Philip W. Boyd, Constant M.G. van den Berg, Christel S. Hassler

Publikováno v: FRONTIERS IN MARINE SCIENCE
Frontiers in Marine Science, Vol. 4 (2017)

© 2017 Hassler, van den Berg and Boyd. Iron-binding ligands are paramount to understanding iron biogeochemistry and its potential to set the productivity and the magnitude of the biological pump in > 30% of the ocean. However, the nature of these li

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ca8770ffdc6b79ffee75136a7d9bd3fa

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Chemical speciation of iron in seawater using catalytic cathodic stripping voltammetry with ligand competition against salicylaldoxime

Autor: Mahmoud M. Abualhaija, Constant M.G. van den Berg

Publikováno v: Marine Chemistry. 164:60-74

The chemical speciation of iron in seawater is typically determined by cathodic stripping voltammetry (CSV) making use of ligand competition between an electroactive ligand added to obtain the CSV signal and the natural ligand to determine the comple

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::1c6d8bce73d9b1dacd3386dffe879128
https://doi.org/10.1016/j.marchem.2014.06.005

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The speciation of lead in seawater by pseudopolarography using a vibrating silver amalgam microwire electrode

Autor: Pascal Salaün, Zhaoshun Bi, Constant M.G. van den Berg

Publikováno v: Marine Chemistry. 151:1-12

A novel electrode based on a vibrating silver amalgam microwire was used for pseudopolarography of lead (Pb) in seawater. Pseudopolarography is a method to study the stability of metal species by examination of their reduction potential. The reductio

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::8b7d5a54e80b25468ef05e966ee75f3a
https://doi.org/10.1016/j.marchem.2013.02.003

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Determination of lead and cadmium in seawater using a vibrating silver amalgam microwire electrode

Autor: Constant M.G. van den Berg, Pascal Salaün, Zhaoshun Bi

Publikováno v: Analytica Chimica Acta. 769:56-64

Silver amalgamated electrodes are a good substrate to determine lead (Pb) and cadmium (Cd) in seawater because they have properties similar to mercury but without the free mercury (Hg). Here a silver amalgamated microwire (SAM) electrode is optimised

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7c4e0e132c0b6eb32d9e5033e88495de
https://doi.org/10.1016/j.aca.2013.01.049

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Study of Bare and Mercury-Coated Vibrated Carbon, Gold and Silver Microwire Electrodes for the Determination of Lead and Cadmium in Seawater by Anodic Stripping Voltammetry

Autor: Pascal Salaün, Constant M.G. van den Berg, Zhaoshun Bi

Publikováno v: Electroanalysis. 25:357-366

Carbon, gold and silver microwires are revisited under vibrated conditions for detection of trace lead and cadmium in seawater. The Pb and Cd peaks fully overlapped on the bare gold and carbon electrodes and partially on the silver electrode. The sen

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7c4140b137c9f6e1681f09d608312322
https://doi.org/10.1002/elan.201200446

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Toward a Quality-Controlled and Accessible Pitzer Model for Seawater and Related Systems

Autor: Constant M.G. van den Berg, Simon L. Clegg, David R. Turner, Mona Wells, Eric P. Achterberg, Sylvia G. Sander, Chen-Tung Arthur Chen, Vanessa Hatje, Maria T. Maldonado

Publikováno v: Frontiers in Marine Science, 3 (139).
Frontiers in Marine Science, Vol 3 (2016)

We elaborate the need for a quality-controlled chemical speciation model for seawater and related natural waters, work which forms the major focus of SCOR Working Group 145. Model development is based on Pitzer equations for the seawater electrolyte

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::797bdeca92992cb8845edab53c2c80fa
http://oceanrep.geomar.de/35242/

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