2020
DOI: 10.51200/bijb.vi.2203
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Optimisation of an Electrochemical Sensor Based on Bare Gold Electrode for Detection of Aluminium Ion

Abstract: In this work, an electrochemical method for detection of trace amount of aluminium (Al3+), a heavy metal ion, based on a bare gold electrode (AuE) was developed. Current responses of the AuE under various type of electrolytes, redox  indicators, pH, scan rate and accumulation time were investigated using cyclic voltammetry (CV) method to obtain the optimum conditions for Al3+ detection. The sensing properties of the AuE towards the target ion with different concentrations were investigated using differential p… Show more

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Cited by 6 publications
(1 citation statement)
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“…Alternatively, the bound MB molecules were replaced by the ssDNA probe with its target sequence, or only a few MB molecules were bound during the hybridization of the ssDNA probe with its target sequence causing lowering the signal (Farjami et al, 2010). The Tris-HCl buffer provides a complete circuit and serves as the electrolytic solution for detection in all electrochemical biosensor experiments (Ringgit et al, 2020). The oxidation signal was nearly twice as large as the reduction signal, indicating that both positive and negative radical ions diffused at the top of the active surface.…”
Section: Influence Of the Buffer Ph And Redox Indicatormentioning
confidence: 99%
“…Alternatively, the bound MB molecules were replaced by the ssDNA probe with its target sequence, or only a few MB molecules were bound during the hybridization of the ssDNA probe with its target sequence causing lowering the signal (Farjami et al, 2010). The Tris-HCl buffer provides a complete circuit and serves as the electrolytic solution for detection in all electrochemical biosensor experiments (Ringgit et al, 2020). The oxidation signal was nearly twice as large as the reduction signal, indicating that both positive and negative radical ions diffused at the top of the active surface.…”
Section: Influence Of the Buffer Ph And Redox Indicatormentioning
confidence: 99%