A Batch Injection Analysis System with Square‐wave Voltammetric Detection for Fast and Simultaneous Determination of Zinc and Ascorbic Acid. Issue 1 (2nd September 2020)

• Record Type: Journal Article
• Authors: Ribeiro, Michelle M. A. C.; Rocha, Raquel G.; Munoz, Rodrigo A. A.; Richter, Eduardo M.
• Is Part Of: Electroanalysis. Volume 33:Issue 1(2021)
• Page Start: 90
• Page End: 96
• Publication Date: 2020-09-02
• Subjects: Fast analysis -- Portable system -- Simultaneous determination -- Striping voltammetry -- Unmodified electrode; Electrochemical analysis -- Periodicals; Chemistry, Analytical -- Periodicals; Electrochemistry -- Periodicals; 543.4
• DOI: 10.1002/elan.202060078
• Languages: English
• ISSNs: 1040-0397

Abstract

Abstract: The determination of organic and inorganic compounds in a single run is still a great challenge. In this paper, we developed a method for fast simultaneous determination of ascorbic acid (AA) and zinc ions (Zn) using batch injection analysis with detection by square‐wave anodic stripping voltammetry (BIA‐SWASV). Britton‐Robinson (BR) buffer solution (pH=6.0) as the supporting electrolyte and boron doped diamond (BDD) as the working electrode. The method presented favorable analytical characteristics such as fast response (67 injections h −1 ), low detection limits (0.2 and 5.4 μmol L −1 for Zn ions and AA, respectively) and recovery values of 99±3%. Abstract :