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Determination of trace amounts of lead and cadmium using a bismuth/glassy carbon composite electrode.
Talanta. 2009 Feb 15; 77(4):1432-6.T

Abstract

We examined the use of a bismuth-glassy carbon (Bi/C) composite electrode for the determination of trace amounts of lead and cadmium. Incorporated bismuth powder in the composite electrode was electrochemically dissolved in 0.1M acetate buffer (pH 4.5) where nanosized bismuth particles were deposited on the glassy carbon at the reduction potential. The anodic stripping voltammetry on the Bi/C composite electrode exhibited well-defined, sharp and undistorted peaks with a favorable resolution for lead and cadmium. Comparing a non-oxidized Bi/C composite electrode with an in-situ plated bismuth film electrode, the Bi/C composite electrode exhibited superior performance due to its much larger surface area. The limit of detection was 0.41 microg/L for lead and 0.49 microg/L for cadmium. Based on this study, we are able to conclude that various types of composite electrodes for electroanalytical applications can be developed with a prudent combination of electrode materials.

Authors+Show Affiliations

Department of Materials Science and Engineering, Hanyang University, Seongdong, Seoul, Republic of Korea.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

19084661

Citation

Hwang, Gil-Ho, et al. "Determination of Trace Amounts of Lead and Cadmium Using a Bismuth/glassy Carbon Composite Electrode." Talanta, vol. 77, no. 4, 2009, pp. 1432-6.
Hwang GH, Han WK, Hong SJ, et al. Determination of trace amounts of lead and cadmium using a bismuth/glassy carbon composite electrode. Talanta. 2009;77(4):1432-6.
Hwang, G. H., Han, W. K., Hong, S. J., Park, J. S., & Kang, S. G. (2009). Determination of trace amounts of lead and cadmium using a bismuth/glassy carbon composite electrode. Talanta, 77(4), 1432-6. https://doi.org/10.1016/j.talanta.2008.09.028
Hwang GH, et al. Determination of Trace Amounts of Lead and Cadmium Using a Bismuth/glassy Carbon Composite Electrode. Talanta. 2009 Feb 15;77(4):1432-6. PubMed PMID: 19084661.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Determination of trace amounts of lead and cadmium using a bismuth/glassy carbon composite electrode. AU - Hwang,Gil-Ho, AU - Han,Won-Kyu, AU - Hong,Seok-Jun, AU - Park,Joon-Shik, AU - Kang,Sung-Goon, Y1 - 2008/09/26/ PY - 2008/07/30/received PY - 2008/09/17/revised PY - 2008/09/18/accepted PY - 2008/12/17/entrez PY - 2008/12/17/pubmed PY - 2009/6/12/medline SP - 1432 EP - 6 JF - Talanta JO - Talanta VL - 77 IS - 4 N2 - We examined the use of a bismuth-glassy carbon (Bi/C) composite electrode for the determination of trace amounts of lead and cadmium. Incorporated bismuth powder in the composite electrode was electrochemically dissolved in 0.1M acetate buffer (pH 4.5) where nanosized bismuth particles were deposited on the glassy carbon at the reduction potential. The anodic stripping voltammetry on the Bi/C composite electrode exhibited well-defined, sharp and undistorted peaks with a favorable resolution for lead and cadmium. Comparing a non-oxidized Bi/C composite electrode with an in-situ plated bismuth film electrode, the Bi/C composite electrode exhibited superior performance due to its much larger surface area. The limit of detection was 0.41 microg/L for lead and 0.49 microg/L for cadmium. Based on this study, we are able to conclude that various types of composite electrodes for electroanalytical applications can be developed with a prudent combination of electrode materials. SN - 1873-3573 UR - https://www.unboundmedicine.com/medline/citation/19084661/Determination_of_trace_amounts_of_lead_and_cadmium_using_a_bismuth/glassy_carbon_composite_electrode_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0039-9140(08)00690-5 DB - PRIME DP - Unbound Medicine ER -