Determination of groundwater mercury (II) content using a disposable gold modified screen printed carbon electrode

Somé, Issa T.; Sakira, Abdoul Karim; Mertens, Dominique; Ronkart, Sébastien; Kauffmann, Jean‐Michel

doi:10.1016/j.talanta.2016.02.033

Cited by 59 publications

(21 citation statements)

References 36 publications

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“…The most common approach to fabricate a Au-modified SPE is by electroplating a thin coat of Au on a carbon SPE. Most of the applications reported in the literature rely on an ex situ coating of the SPE substrate with Au, which involves performing the plating step in a plating solution containing Au(III) (i.e., [AuCl 4 ] − ) [ 32 ]. This deposit does not actually consist of a uniform “film” but is composed of Au nanoparticles (AuNPs) formed on the electrode surface.…”

Section: Spes Modified With Aumentioning

confidence: 99%

Screen-Printed Electrodes Modified with “Green” Metals for Electrochemical Stripping Analysis of Toxic Elements

Economou

2018

Sensors

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This work reviews the field of screen-printed electrodes (SPEs) modified with “green” metals for electrochemical stripping analysis of toxic elements. Electrochemical stripping analysis has been established as a useful trace analysis technique offering many advantages compared to competing optical techniques. Although mercury has been the preferred electrode material for stripping analysis, the toxicity of mercury and the associated legal requirements in its use and disposal have prompted research towards the development of “green” metals as alternative electrode materials. When combined with the screen-printing technology, such environment-friendly metals can lead to disposable sensors for trace metal analysis with excellent operational characteristics. This review focuses on SPEs modified with Au, Bi, Sb, and Sn for stripping analysis of toxic elements. Different modification approaches (electroplating, bulk modification, use of metal precursors, microengineering techniques) are considered and representative applications are described. A developing related field, namely biosensing based on stripping analysis of metallic nanoprobe labels, is also briefly mentioned.

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Section: Spes Modified With Aumentioning

confidence: 99%

Screen-Printed Electrodes Modified with “Green” Metals for Electrochemical Stripping Analysis of Toxic Elements

Economou

2018

Sensors

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“…Among them electrochemical sensors are mostly effective due to their high sensitivity, cost effective and rapid response. There are two types of electrodes are mainly used for the electrochemical detection of Hg 2+ ions namely nanostructured electrodes with gold, carbon nanomaterial and DNA‐based assays . Modified electrodes with other metal nanoparticles for the Hg 2+ ions sensing have also been reported .…”

Section: Introductionmentioning

confidence: 99%

“Novel Dextrin‐Cysteine Schiff Base: A Highly Efficient Sensor for Mercury Ions in Aqueous Environment”

et al. 2020

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We report a highly sensitive electrochemical and fluorescence sensor for the detection of toxic environmental pollutant Hg2+ ions by using a novel dextrin‐cysteine‐Schiff base (DCS). The sensor is developed by the periodate oxidation of dextrin followed by Schiff base formation with an amino acid, cysteine. The new characterized DCS is used as an efficient and selective sensor for the detection of Hg2+ ions in aqueous solution both by electrochemical and fluorescence quenching process. The detection limit (LOD) by the electrochemical method is 0.74 nM which is much lower than that by the fluorometric detection, where LOD value is found to be 40.93 μM. The Schiff base/glassy carbon electrode (DCS/GCE) shows an excellent selectivity towards Hg2+ ions compare to other environmentally relevant ions where almost nil current response is observed. The DCS/GCE also exhibits remarkable sensing of Hg2+ in real water samples such as river and tap water. The electrochemical sensing of Hg2+ by DCS is found to be superior to that of fluorescence sensing.

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“…Most of them were used in the determination of metallic ions, such as arsenic, 33 chromium(VI), 34,35 lead(II), [36][37][38] lead and copper simultaneously 39,40 and mercury. 41 Only one work concerning the use of SPE in the determination of an organic compound, in this case, for the anti-cancer drug nilutamide, was found. The device was prepared with a composite containing b-cyclodextrin, AuNP and graphene oxide.…”

Section: Introductionmentioning

confidence: 99%

Developing a screen-printed graphite–polyurethane composite electrode modified with gold nanoparticles for the voltammetric determination of dopamine

2019

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Determination of groundwater mercury (II) content using a disposable gold modified screen printed carbon electrode

Cited by 59 publications

References 36 publications

Screen-Printed Electrodes Modified with “Green” Metals for Electrochemical Stripping Analysis of Toxic Elements

Screen-Printed Electrodes Modified with “Green” Metals for Electrochemical Stripping Analysis of Toxic Elements

“Novel Dextrin‐Cysteine Schiff Base: A Highly Efficient Sensor for Mercury Ions in Aqueous Environment”

Developing a screen-printed graphite–polyurethane composite electrode modified with gold nanoparticles for the voltammetric determination of dopamine

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