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Determination of trace metals by anodic stripping voltammetry using a bismuth-modified carbon nanotube electrode.
Talanta. 2008 Jul 15; 76(2):301-8.T

Abstract

A bismuth-modified carbon nanotube electrode (Bi-CNT electrode) was employed for the determination of trace lead, cadmium and zinc. Bismuth film was prepared by in situ plating of bismuth onto the screen-printed CNT electrode. Operational parameters such as preconcentration potential, bismuth concentration, preconcentration time and rotation speed during preconcentration were optimized for the purpose of determining trace metals in 0.1M acetate buffer solution (pH 4.5). The simultaneous determination of lead, cadmium and zinc was performed by square wave anodic stripping voltammetry. The Bi-CNT electrode presented well-defined, reproducible and sharp stripping signals. The peak current response increased linearly with the metal concentration in a range of 2-100 microg/L. The limit of detection was 1.3 microg/L for lead, 0.7 microg/L for cadmium and 12 microg/L for zinc (S/N=3). The Bi-CNT electrode was successfully applicable to analysis of trace metals in real environments.

Authors+Show Affiliations

Department of Materials Science and Engineering, Hanyang University, 17 Haengdang-dong, Seongdong-gu, Seoul 133-791, Republic of Korea.No affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Evaluation Study
Journal Article

Language

eng

PubMed ID

18585281

Citation

Hwang, Gil Ho, et al. "Determination of Trace Metals By Anodic Stripping Voltammetry Using a Bismuth-modified Carbon Nanotube Electrode." Talanta, vol. 76, no. 2, 2008, pp. 301-8.
Hwang GH, Han WK, Park JS, et al. Determination of trace metals by anodic stripping voltammetry using a bismuth-modified carbon nanotube electrode. Talanta. 2008;76(2):301-8.
Hwang, G. H., Han, W. K., Park, J. S., & Kang, S. G. (2008). Determination of trace metals by anodic stripping voltammetry using a bismuth-modified carbon nanotube electrode. Talanta, 76(2), 301-8. https://doi.org/10.1016/j.talanta.2008.02.039
Hwang GH, et al. Determination of Trace Metals By Anodic Stripping Voltammetry Using a Bismuth-modified Carbon Nanotube Electrode. Talanta. 2008 Jul 15;76(2):301-8. PubMed PMID: 18585281.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Determination of trace metals by anodic stripping voltammetry using a bismuth-modified carbon nanotube electrode. AU - Hwang,Gil Ho, AU - Han,Won Kyu, AU - Park,Joon Shik, AU - Kang,Sung Goon, Y1 - 2008/03/04/ PY - 2007/11/28/received PY - 2008/02/26/revised PY - 2008/02/26/accepted PY - 2008/7/1/pubmed PY - 2008/8/14/medline PY - 2008/7/1/entrez SP - 301 EP - 8 JF - Talanta JO - Talanta VL - 76 IS - 2 N2 - A bismuth-modified carbon nanotube electrode (Bi-CNT electrode) was employed for the determination of trace lead, cadmium and zinc. Bismuth film was prepared by in situ plating of bismuth onto the screen-printed CNT electrode. Operational parameters such as preconcentration potential, bismuth concentration, preconcentration time and rotation speed during preconcentration were optimized for the purpose of determining trace metals in 0.1M acetate buffer solution (pH 4.5). The simultaneous determination of lead, cadmium and zinc was performed by square wave anodic stripping voltammetry. The Bi-CNT electrode presented well-defined, reproducible and sharp stripping signals. The peak current response increased linearly with the metal concentration in a range of 2-100 microg/L. The limit of detection was 1.3 microg/L for lead, 0.7 microg/L for cadmium and 12 microg/L for zinc (S/N=3). The Bi-CNT electrode was successfully applicable to analysis of trace metals in real environments. SN - 1873-3573 UR - https://www.unboundmedicine.com/medline/citation/18585281/Determination_of_trace_metals_by_anodic_stripping_voltammetry_using_a_bismuth_modified_carbon_nanotube_electrode_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0039-9140(08)00161-6 DB - PRIME DP - Unbound Medicine ER -