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Study of dissolved copper (II) speciation at coastal water of Peninsular Malaysia


Citation

Godon, Edrianna and Mohamed, Khairul Nizam and Gani, Mohamad Azrul and Johan, Shamsuddin (2018) Study of dissolved copper (II) speciation at coastal water of Peninsular Malaysia. Oriental Journal of Chemistry, 34 (4). 1858 - 1877. ISSN 0970-020X; ESSN: 2231-5039

Abstract

Samples from Perhentian and Pangkor Island Marine Park, Peninsular Malaysia were analyzed for Cu(II) speciation by using CLE-AdCSV. Northeast monsoon effect was studied in Perhentian and compared with Pangkor. Excess concentration of CuL found for all stations in both islands showed >99.5% of total dissolved Cu (dCu) was bound to Cu (II) complexing ligands. The log K’CuL>12 data indicated the presence of strong natural ligands (L1) in Perhentian Island. Lower log K’ (log K’=10 to 12) and two types of ligands (L1 and L2) were found in Pangkor Island. The ratio of CuL/dCu was analysed to see the ligand distributions, and saturation rate with dissolved Cu. Statistical analysis showed weak relationship between the in-situ parameters to log K’ values (p>0.05). The log K’CuL (PP: 12.00-12.96, PG: 10.93-12.840) data suggested that the dissolved Cu are used by marine organisms, thus preventing the free Cu2+ ions to be produced.


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Additional Metadata

Item Type: Article
Divisions: Faculty of Environmental Studies
DOI Number: https://doi.org/10.13005/ojc/3404021
Publisher: Oriental Scientific Publishing Company
Keywords: Cu speciation; Cu toxicity; Northeast monsoon; CLE-AdCSV; South China Sea
Depositing User: Nida Hidayati Ghazali
Date Deposited: 29 Apr 2020 04:25
Last Modified: 29 Apr 2020 04:25
Altmetrics: https://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.13005/ojc/3404021
URI: http://psasir.upm.edu.my/id/eprint/73998
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