Anodic Stripping Voltammetry at Bismuth-Coated and Uncoated Carbon Microdisk Electrodes:Application to Trace Metals Analysis in Flood Samples

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	Anodic Stripping Voltammetry at Bismuth-Coated and Uncoated Carbon Microdisk Electrodes:Application to Trace Metals Analysis in Flood Samples
	BALDO Maria Antonietta ; DANIELE Salvatore
发表期刊	Analytical letters
ISSN	0003-2719
	2004
卷号	37 期号:5 页码:995-1011
关键词	Wine Drinking Water Copper Ion Lead Ion Cadmium Foodstuff Heavy Metal Bismuth Standard Deviation Reproducibility Chemical Enrichment Gel Permeation Chromatography Detection Limit Standard Curve Quantitative Analysis Interference In Situ Electrodeposition Performance Evaluation Trace Analysis Carbon Electrode Anodic Stripping Voltammetry
英文摘要	This article reports on the performance of a bismuth-coated carbon microdisk electrode (BiFμE) for the determination of trace heavy metals by anodic stripping voltammetry (ASV). The BiFμE was prepared by electrodeposition of a metallic bismuth film onto the microdisk, by applying an in-situ electroplating procedure. To test the performance of the BiFμE, ASV measurements were performed on synthetic solutions containing Cd2+, Pb2+, and Cu2+ as target ions. The results indicated that cadmium and lead gave well-defined ASV peaks with no interference, and their quantitative determination could be carried out straightforwardly. In particular, linear calibration curves over the range 5.0 x 10-8-1.0 x 10-6M for both ions, and detection limits of 7.8 and 2.9 nM, for cadmium and lead, respectively, after applying a 60 sec preconcentration step, were obtained. The reproducibility was also satisfactory, the relative standard deviation (RSD) being within 2.5% for both ions. Copper, instead, gave an ASV response that. in most experimental conditions, overlapped with that of bismuth. This circumstance made the determination of copper at the BiFμE difficult. Since the latter element could be detected reliably at the uncoated carbon microdisk electrode (CμE), both BiFμE and CμE were employed, respectively, for the determination of lead and copper ions in drinking water, wine, and tomato sauce.
语种	英语
文献类型	期刊论文
条目标识符	http://ir.yic.ac.cn/handle/133337/3085
专题	科研共享资源
推荐引用方式 GB/T 7714	BALDO Maria Antonietta,DANIELE Salvatore. Anodic Stripping Voltammetry at Bismuth-Coated and Uncoated Carbon Microdisk Electrodes:Application to Trace Metals Analysis in Flood Samples[J]. Analytical letters,2004,37(5):995-1011.
APA	BALDO Maria Antonietta,&DANIELE Salvatore.(2004).Anodic Stripping Voltammetry at Bismuth-Coated and Uncoated Carbon Microdisk Electrodes:Application to Trace Metals Analysis in Flood Samples.Analytical letters,37(5),995-1011.
MLA	BALDO Maria Antonietta,et al."Anodic Stripping Voltammetry at Bismuth-Coated and Uncoated Carbon Microdisk Electrodes:Application to Trace Metals Analysis in Flood Samples".Analytical letters 37.5(2004):995-1011.

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