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All Outputs (128)

Introduction (2014)
Book Chapter

Nano-scale materials are proving attractive for a new generation of devices, due to their unique properties. They are used to create fast-responding sensors with good sensitivity and selection for the detection of chemical species and biological agen... Read More about Introduction.

Electrochemical detection of benzodiazepines, following liquid chromatography, for applications in pharmaceutical, biomedical and forensic investigations (2014)
Journal Article

Benzodiazepines are an important class of drugs commonly administered with a potential for abuse and environmental pollution. This review focuses on the liquid chromatographic electrochemical detection of the benzodiazepine class of drugs. These are... Read More about Electrochemical detection of benzodiazepines, following liquid chromatography, for applications in pharmaceutical, biomedical and forensic investigations.

Voltammetric behaviour of hydrogen peroxide at a silver electrode fabricated from a rewritable digital versatile disc (DVD) and its determination in water samples (2013)
Journal Article

In this study we investigated the possibility of applying Ag electrodes manufactured from recordable rewritable digital versatile discs (DVD-RW) for the voltammetric determination of hydrogen peroxide. The calibration plot was linear from 0.087 mM to... Read More about Voltammetric behaviour of hydrogen peroxide at a silver electrode fabricated from a rewritable digital versatile disc (DVD) and its determination in water samples.

Underpotential deposition of lead at silver electrodes manufactured from compact discs and its determination in environmental water samples (2013)
Journal Article

The present paper describes the facile manufacture of silver electrodes from compact discs for the anodic stripping voltammetric determination of lead. The voltammetric behaviour of Pb in 0.1 M HCl was examined by cyclic voltammetry. Using a starting... Read More about Underpotential deposition of lead at silver electrodes manufactured from compact discs and its determination in environmental water samples.

The redox behaviour of diazepam (Valium®) using a disposable screen-printed sensor and its determination in drinks using a novel adsorptive stripping voltammetric assay (2013)
Journal Article

In this study we investigated the possibility of applying disposable electrochemical screen-printed carbon sensors for the rapid identification and quantitative determination of diazepam in beverages. This was achieved utilising a previously unreport... Read More about The redox behaviour of diazepam (Valium®) using a disposable screen-printed sensor and its determination in drinks using a novel adsorptive stripping voltammetric assay.

The chronoamperometric and voltammetric behaviour of glutathione at screen-printed carbon micro-band electrodes modified with cobalt phthalocyanine (2012)
Journal Article

Screen-printed carbon electrodes (SPCEs) incorporating the electrocatalyst cobalt phthalocyanine (CoPC) have been successfully used for the manufacture of microband electrodes for the determination of reduced glutathione (GSH). Initially investigati... Read More about The chronoamperometric and voltammetric behaviour of glutathione at screen-printed carbon micro-band electrodes modified with cobalt phthalocyanine.

Redox mechanisms of rohypnol and mogadon and their exploitation in an assay using dual electrode ECD following HPLC (2012)
Presentation / Conference Contribution

Importance of the 1,4-benzodiazepine class of drugs Cyclic voltammetric behaviour of Flunitrazepam (Rohypnol), and Nitrazepam (Mogadon) Possible mechanism for their voltammetric behaviour Optimisation of Liquid Chromatographic Separation and... Read More about Redox mechanisms of rohypnol and mogadon and their exploitation in an assay using dual electrode ECD following HPLC.

Thick Film Biosensors (2012)
Book Chapter

The present review focuses on the thick film electrochemical biosensors fabricated using screen-printing technology over the last four years. Biosensors are composed of a biological recognition element acting as a receptor and a transducer, which con... Read More about Thick Film Biosensors.

Novel electrode reactions of diazepam, flunitrazepam and lorazepam and their exploitation in a new redox mode LC-DED assay for serum (2012)
Journal Article

Previously unreported voltammetric redox behaviour was identified for flunitrazepam, lorazepam and diazepam at a glassy carbon electrode. This was successfully exploited for their determination in serum by high performance liquid chromatography dual... Read More about Novel electrode reactions of diazepam, flunitrazepam and lorazepam and their exploitation in a new redox mode LC-DED assay for serum.

The voltammetric behaviour of lead at a microband screen-printed carbon electrode and its determination in acetate leachates from glazed ceramic plates (2011)
Journal Article

Microband screen-printed carbon electrodes (μBSPCEs) without further modification have been investigated as disposable sensors for the measurement of lead in acetate leachates from ceramic glazed plates. Cyclic voltammetry was employed to elucidate t... Read More about The voltammetric behaviour of lead at a microband screen-printed carbon electrode and its determination in acetate leachates from glazed ceramic plates.

Electrocatalytic behaviour of citric acid at a cobalt phthalocyanine- modified screen-printed carbon electrode and its application in pharmaceutical and food analysis (2010)
Journal Article

Cobalt phthalocyanine-modified screen-printed carbon electrodes (CoPC-SPCEs) have been investigated as disposable sensors for the measurement of citric acid. The analyte was found to undergo an electrocatalytic oxidation process involving the Co2+/Co... Read More about Electrocatalytic behaviour of citric acid at a cobalt phthalocyanine- modified screen-printed carbon electrode and its application in pharmaceutical and food analysis.

The electrochemical behavior of nitrazepam at a screen-printed carbon electrode and its determination in beverages by adsorptive stripping voltammetry (2009)
Journal Article

The cyclic voltammetric behavior of nitrazepam was investigated at screen-printed carbon electrodes over the range1.5 V to {thorn}1.5 V. Two reduction peaks were observable on the negative scan, at 0.7 V, and 1.2 V using pH 6 buffer. On the return sc... Read More about The electrochemical behavior of nitrazepam at a screen-printed carbon electrode and its determination in beverages by adsorptive stripping voltammetry.