Gold nanoparticle included graphene oxide modified electrode: Picomole detection of metal ions in seawater by stripping voltammetry
- Authors: Üstündağ İ.1, Erkal A.2, Koralay T.3, Kadıoğlu Y.K.4, Jeon S.5
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Affiliations:
- Faculty of Arts and Science, Department of Physics
- Faculty of Arts and Science, Department of Chemistry
- Faculty of Engineering, Department of Geology
- Faculty of Engineering, Geological Engineering
- Department of Chemistry and Institute of Basic Science
- Issue: Vol 71, No 7 (2016)
- Pages: 685-695
- Section: Articles
- URL: https://journals.rcsi.science/1061-9348/article/view/181865
- DOI: https://doi.org/10.1134/S1061934816070108
- ID: 181865
Cite item
Abstract
We obtained a gold nanomaterial/graphene oxide-modified glassy carbon electrode and characterized it using transmission electron microscope, scanning electron microscope, cyclic voltammetry (CV), and X-ray photoelectron spectroscopy techniques. A response of the electrode using square wave anodic stripping voltammetry for Pb2+, Cu2+, and Hg2+ was found linear in the range from 1 × 10–7 to 1 × 10–11 M. The detection limits of Pb2+, Cu2+ and Hg2+ were 0.14, 0.5 and 1.2 pM, respectively. The method was applied to the simultaneous determination of Pb2+, Cu2+ and Hg2+ in seawater samples from a coastal region of Anatolia, and the results corresponded well with the values obtained by inductively coupled plasma-optical emission spectroscopy.
About the authors
İlknur Üstündağ
Faculty of Arts and Science, Department of Physics
Author for correspondence.
Email: iozkirim@gmail.com
Turkey, Kütahya, 43100
Aslı Erkal
Faculty of Arts and Science, Department of Chemistry
Email: iozkirim@gmail.com
Turkey, Kütahya, 43100
Tamer Koralay
Faculty of Engineering, Department of Geology
Email: iozkirim@gmail.com
Turkey, Denizli
Yusuf Kağan Kadıoğlu
Faculty of Engineering, Geological Engineering
Email: iozkirim@gmail.com
Turkey, Tandoğan, Ankara, 06100
Seungwon Jeon
Department of Chemistry and Institute of Basic Science
Email: iozkirim@gmail.com
Korea, Republic of, Gwangju, 500-757