Anodic stripping voltammetry _ ASV for determination of heavy metals

2nd International Meeting for Researchers in Materials and Plasma Technology

物理学;材料科学

Barón-Jaimez, J.^1 ; Joya, M.R.^2 ; Barba-Ortega, J.^2

Grupo Plasnamat, Instituto de Investigaciones en Materiales, Universidad Autónoma de México, DF, México, Mexico^1

Departamento de Física, Universidad Nacional de Colombia, Bogotá, Colombia^2

关键词: Analytical method;    Anodic stripping voltammetry;    Electrode systems;    Environmental sample;    Potential difference;    Pre-concentration;    Trace-level determination;    Voltammetric methods;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/466/1/012023/pdf
DOI  :  10.1088/1742-6596/466/1/012023

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

Although voltammetric methods presented a number of difficulties in its early stages, nowadays "ASV" anodic stripping voltammetry is considered one of the most sensitive electro-analytical and suitable for trace-level determination of many metals and compounds in environmental samples, clinical and industrial [1, 2, 3]. Its sensitivity is attributed to the combination of a step of pre-concentration effective together with an electrochemical advanced measurement of accumulated analyte [4]. This paper presents an overview of the voltammetry, which includes a group of electro-analytical methods, in them the information about analyte is obtained from measurements of the current flowing in an electrochemical cell when applied a potential difference to an suitable electrode system.