176
Views
2
CrossRef citations to date
0
Altmetric
Electrochemistry

Flow-Injection Analysis (FIA) Electrochemical Speciation of Copper in Coastal Waters by Anodic Stripping Voltammetry (ASV)

, , &
Pages 1858-1870 | Received 06 Jul 2020, Accepted 19 Sep 2020, Published online: 06 Oct 2020
 

Abstract

A sensitive and precise method for copper (Cu) speciation [electroactive Cu (II), acid-dissolved Cu (0, II), and inert Cu (0)] in coastal waters was developed using flow-injection analysis and electrochemical detection. The reaction is based on a simple redox reaction using a gold nanoparticle modified electrode. The effects of experimental parameters were investigated and optimized. The presence of iron, lead, zinc, cadmium, and aluminum did not interfere with the determination of copper. For total copper, the method detection limit was 1.3 nM, and the quantification range was from 5 to 1000 nM (R2 equal to 0.995), which is sufficiently sensitive for coastal water analysis. A certified reference material was used to characterize the accuracy and good agreement was obtained. The developed method was applied to analyze coastal water samples collected from the Guangdang River, Shandong, China. The Cu species present are reported and discussed.

Additional information

Funding

This work was financially supported by the National Key R & D Program of China (2019YFD0901103), the Key Research and Development Plan of Shandong Province (2017GHY215002), and the Key Research and Development Plan of Yantai City (2017ZH096).

Reprints and Corporate Permissions

Please note: Selecting permissions does not provide access to the full text of the article, please see our help page How do I view content?

To request a reprint or corporate permissions for this article, please click on the relevant link below:

Academic Permissions

Please note: Selecting permissions does not provide access to the full text of the article, please see our help page How do I view content?

Obtain permissions instantly via Rightslink by clicking on the button below:

If you are unable to obtain permissions via Rightslink, please complete and submit this Permissions form. For more information, please visit our Permissions help page.