Complexation-based detection of nickel(ii) at a graphene-chelate probe in the presence of cobalt and zinc by adsorptive stripping voltammetry

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dc.contributor.authorPokpas, Keagan
dc.contributor.authorJahed, Nazeem
dc.contributor.authorBaker, Priscilla G.
dc.date.accessioned2023-02-06T09:25:29Z
dc.date.available2023-02-06T09:25:29Z
dc.date.issued2017
dc.description.abstractThe adsorptive stripping voltammetric detection of nickel and cobalt in water samples at metal film electrodes has been extensively studied. In this work, a novel, environmentally friendly, metal-free electrochemical probe was constructed for the ultra-trace determination of Ni2+ in water samples by Adsorptive Cathodic Stripping Voltammetry (AdCSV). The electrochemical platform is based on the adsorptive accumulation of Ni2+ ions directly onto a glassy carbon electrode (GCE) modified with dimethylglyoxime (DMG) as chelating agent and a Nafion-graphene (NGr) nanocomposite to enhance electrode sensitivity. The nafion-graphene dimethylglyoxime modified glassy carbon electrode (NGr-DMG-GCE) shows superior detection capabilities as a result of the improved surface-area-to-volume ratio and enhanced electron transfer kinetics following the incorporation of single layer graphene, while limiting the toxic effects of the sensor by removal of the more common mercury, bismuth and lead films.en_US
dc.identifier.citationPokpas, K. et al. (2017). Complexation-based detection of nickel(ii) at a graphene-chelate probe in the presence of cobalt and zinc by adsorptive stripping voltammetry. Sensors , 17(8), 1711. https://doi.org/10.3390/s17081711en_US
dc.identifier.issn1424-8220
dc.identifier.urihttps://doi.org/10.3390/s17081711
dc.identifier.urihttp://hdl.handle.net/10566/8355
dc.language.isoenen_US
dc.publisherMDPIen_US
dc.subjectChemistryen_US
dc.subjectGrapheneen_US
dc.subjectDimethylglyoximeen_US
dc.subjectWorld Health Organization (WHO)en_US
dc.titleComplexation-based detection of nickel(ii) at a graphene-chelate probe in the presence of cobalt and zinc by adsorptive stripping voltammetryen_US
dc.typeArticleen_US

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