Self‐Referencing Background Correction Method for Voltammetric Investigation of Reversible Redox Reaction

Abstract

This paper presents a novel fully automated background correction method, which internally validates its results. The method requires a set of voltammograms recorded for calibration with different sensitivities but offers reproducibility, high precision and accuracy. In this paper the results obtained with the use of the proposed algorithm were verified by the processing of both simulated and experimentally registered signals. In both cases recovery and confidence intervals were very satisfactory.

The renewable bismuth bulk annular band working electrode: Fabrication and application in the adsorptive stripping voltammetric determination of nickel(II) and cobalt(II)

“…Polynomial of 3th degree function was chosen as optimal for baseline reconstruction and extraction of Ni and Co peaks. Background subtraction was preceded by manual choice of the points intervals which were included in the baseline calculation [46,47]. Sensitivity of the AdSV determination of Co was 88 AE 1 nA nM À1 for Ni(II) and 2870 AE 33 nA nM À1 for Co(II).…”

Environmental footprint of voltammetric sensors based on screen-printed electrodes: An assessment towards “green” sensor manufacturing

“…The field of chemical sensing using voltammetric sensors have grown rapidly over the past decades as these types of sensors are suitable for on-site determination of target analytes with a portable, user-friendly, and field-deployable electrochemical instrumentation (Dhanjai et al, 2018;Holmes et al, 2019;Lisak et al, 2013;Kotani et al, 2019). Moreover, voltammetric sensors are widely adopted for the determination of analytes, such as metal ions, drugs, toxins, and pesticides in trace levels for environmental monitoring, food safety, agricultural, and biomedical analysis, owing to their high sensitivity (Hayat & Marty, 2014;Lipskikh et al, 2018;Ciepiela et al, 2013;Gupta et al, 2011). Most of the voltammetric measuring setups employ a three-electrode system, comprising of a working electrode (WE), a reference electrode (RE), and a counter electrode (CE) (Jin et al, 2011;Tyszczuk-Rotko et al, 2019).…”