A tin–bismuth alloy electrode for the cathodic stripping voltammetric determination of iron in coastal waters

Mingyue Lin; Dawei Pan; Xueping Hu; Fei Li; Haitao Han

doi:10.1039/C5AY00886G

A tin–bismuth alloy electrode for the cathodic stripping voltammetric determination of iron in coastal waters

Mingyue Lin,^ab Dawei Pan,*^a Xueping Hu,^ab Fei Li^c and Haitao Han^a

* Corresponding authors

^a Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research (YIC), Chinese Academy of Sciences (CAS), Shandong Provincial Key Laboratory of Coastal Environmental Processes, YICCAS, Yantai, Shandong 264003, P. R. China
E-mail: dwpan@yic.ac.cn
Tel: +86 535 2109155

^b University of Chinese Academy of Sciences, Beijing 100049, P. R. China

^c The Key Lab in Molecular and Nano-materials Probes of the Ministry of Education of China, College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan, Shandong 250014, P. R. China

Abstract

We employed a home-made tin–bismuth alloy electrode (SnBiE) as the working electrode with 1-(2-piridylazo)-2-naphthol (PAN) as the complexing ligand to detect trace iron. This method is based on the cathodic reduction of Fe(III)–PAN complex to Fe(II)–PAN complex at the SnBiE by using adsorptive cathodic stripping voltammetry. The experimental parameters, such as the pH value, concentration of buffer solution, accumulation potential, accumulation time and the concentrations of PAN, were optimized, and the interference by other ions was investigated in detail. The response of Fe(III) was linear in the range of 1 nM to 900 nM with a detection limit of 0.2 nM (after 60 s of accumulation, s/n = 3). This method can also be applied to the determination of iron in coastal rivers and seawater with satisfactory results.

Article information

https://doi.org/10.1039/C5AY00886G

Article type

Paper

Submitted

05 Apr 2015

Accepted

13 May 2015

First published

13 May 2015

Download Citation

Anal. Methods, 2015,7, 5169-5174

Permissions

Request permissions

A tin–bismuth alloy electrode for the cathodic stripping voltammetric determination of iron in coastal waters

M. Lin, D. Pan, X. Hu, F. Li and H. Han, Anal. Methods, 2015, 7, 5169 DOI: 10.1039/C5AY00886G

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Analytical Methods

A tin–bismuth alloy electrode for the cathodic stripping voltammetric determination of iron in coastal waters

Abstract

Article information

Download Citation

Author version available

Permissions

A tin–bismuth alloy electrode for the cathodic stripping voltammetric determination of iron in coastal waters

Social activity

Search articles by author

Spotlight

Advertisements