Anodic Stripping Voltammetric Procedure of Thallium(I) Determination by Means of a Bismuth-Plated Gold-Based Microelectrode Array.

ABSTRACT: This article presents a new working electrode based on a bismuth-plated, gold-based microelectrode array, which is suitable for determining thallium(I) species using anodic stripping voltammetry (ASV). It allowed a significant increase in the sensitivity as compared to other voltammetric sensors. The main experimental conditions and the instrumental parameters were optimized. A very good proportionality between the Tl(I) peak current and its concentration was evidenced in the range from 5 × 10^-10 up to 5 × 10^-7 mol L^-1 (R = 0.9989) for 120 s of deposition and from 2 × 10^-10 up to 2 × 10^-7 mol L^-1 (R = 0.9988) for 180 s. A limit of detection (LOD) of 8 × 10^-11 mol L^-1 for a deposition time of 180 s was c

SUBMITTER: Korolczuk M 

PROVIDER: S-EPMC10892365 | biostudies-literature | 2024 Feb

REPOSITORIES: biostudies-literature