All Outputs (128)

Analytical approaches and trends in the determination of psychoactive drugs in air (2022)
Journal Article

Understanding of the levels of psychoactive drugs in air is important for assessing both occupational and environmental exposure. Intelligence on the usage and manufacture of illegal drugs can also be gained. Environmental analysis and determination... Read More about Analytical approaches and trends in the determination of psychoactive drugs in air.

Carbon nanotube (CNT)-based biosensors (2021)
Journal Article

This review focuses on recent advances in the application of carbon nanotubes (CNTs) for the development of sensors and biosensors. The paper discusses various configurations of these devices, including their integration in analytical devices. Carbon... Read More about Carbon nanotube (CNT)-based biosensors.

Forensic electrochemical presumptive blood test based on the voltammetric behaviour of methylene blue and whole blood (2021)
Journal Article

The ability to identify the presence of blood residues is important in a number of fields, such as in the forensic and archaeological sciences. A number of tests presently exist; however, these suffer drawbacks, such as difficulties with the interpre... Read More about Forensic electrochemical presumptive blood test based on the voltammetric behaviour of methylene blue and whole blood.

Recent progress in screen-printed electrochemical sensors and biosensors for the detection of estrogens (2021)
Journal Article

Estrogens have become increasingly prevalent in environmental samples across the world, posing a serious threat to human health. They have received considerable public attention due to their harmful effect on the normal endocrine functions of humans... Read More about Recent progress in screen-printed electrochemical sensors and biosensors for the detection of estrogens.

Illicit drug contamination of the Bristol Pound local currency (2020)
Journal Article

Reports have shown the prevalence of the contamination of banknotes with a number of different drugs. These studies have focused on investigating drug contamination levels on currency which is either nationally or even international distributed. To p... Read More about Illicit drug contamination of the Bristol Pound local currency.

Extraction-free, direct determination of caffeine in microliter volumes of beverages by thermal desorption-gas chromatography mass spectrometry (2020)
Journal Article

An extraction-free method requiring microliter (μL) volumes has been developed for the determination of caffeine in beverages. Using a pyrolysis-gas chromatography mass spectrometry system, the conditions required for the direct thermal desorption-g... Read More about Extraction-free, direct determination of caffeine in microliter volumes of beverages by thermal desorption-gas chromatography mass spectrometry.

Cyclic voltammetric behaviour of 2,4-dinitrotoluene at a glassy carbon electrode (2020)
Journal Article

This paper describes the development of a simple voltammetric method for the measurement of 2,4-dinitrotoluene (24DNT) at glassy carbon electrode (GCE). Initial investigations were undertaken using cyclic voltammetry to characterise the redox behavio... Read More about Cyclic voltammetric behaviour of 2,4-dinitrotoluene at a glassy carbon electrode.

Review of electroanalytical-based approaches for the determination of benzodiazepines (2019)
Journal Article

The benzodiazepine class of drugs are characterised by a readily electrochemically reducible azomethine group. A number are also substituted by other electrochemically active nitro, N-oxide, and carbonyl groups, making them readily accessible to elec... Read More about Review of electroanalytical-based approaches for the determination of benzodiazepines.

3D printed carbon electrode for the voltammetric determination of Zinc (2019)
Presentation / Conference Contribution

C3bio Poster AM KH RL JK 2019 (2019)
Presentation / Conference Contribution

Bioinspired materials have emerged as alternatives to antibodies and enzymes in biosensor for environmental monitoring These are tailored made in order to mimics the molecular function of a natural receptors in biosensor Aptamers and Molecularly imp... Read More about C3bio Poster AM KH RL JK 2019.

Anodic stripping voltammetric determination of zinc at a 3-D printed carbon electrode (2019)
Presentation / Conference Contribution

• The possibility of a fully 3-D printing printed carbon nanofiber–graphite–polystyrene electrodes has been shown. • DPASV of Zn2+ showed stripping peaks, unaffected by other common heavy metals. • Conditions were optimised of the determination of... Read More about Anodic stripping voltammetric determination of zinc at a 3-D printed carbon electrode.

Trace voltammetric determination of lead at a recycled battery carbon rod electrode (2019)
Journal Article

Carbon rod electrodes (CREs) were obtained from recycled zinc–carbon batteries and were used without further modification for the measurement of trace concentrations of lead (Pb). The electrochemical behavior of Pb at these electrodes in a variety of... Read More about Trace voltammetric determination of lead at a recycled battery carbon rod electrode.

Direct thermal desorption gas chromatographic determination of ethylene glycol in whole blood (2018)
Presentation / Conference Contribution

Outline of talk Ethylene glycol Problems of analysis Our new approach Optimisation studies Analytical performance characteristics Analytical application Areas of future work Conclusions Acknowledgements

Electrochemical (bio) sensors for environmental and food analyses (2018)
Journal Article

© 2018 by the authors. In recent years, great progress has been made in the development of sensors and biosensors to meet the demands of environmental and food analysis. In this Special Issue, the state of art and the future trends in the field of en... Read More about Electrochemical (bio) sensors for environmental and food analyses.

Direct thermal desorption gas chromatographic determination of toxicological relevant concentrations of ethylene glycol in whole blood (2018)
Presentation / Conference Contribution

Ethylene Glycol has been determined directly in whole blood using thermal desorption gas chromatography. Recoveries of between 84.8 % to 107 % were recorded, with corresponding %CV of between 1.7 % and 5.8 %. No extraction or derivatization steps w... Read More about Direct thermal desorption gas chromatographic determination of toxicological relevant concentrations of ethylene glycol in whole blood.

Anodic stripping voltammetric determination of zinc at a 3-D printed carbon nanofiber–graphite–polystyrene electrode using a carbon pseudo-reference electrode (2018)
Journal Article

© 2018 Elsevier B.V. The application of a novel fully 3-D printed carbon nanofiber–graphite–polystyrene electrode has been investigated for the trace determination of Zn2+ by differential pulse anodic stripping voltammetry. The possibility of utilisi... Read More about Anodic stripping voltammetric determination of zinc at a 3-D printed carbon nanofiber–graphite–polystyrene electrode using a carbon pseudo-reference electrode.

Direct thermal desorption gas chromatographic determination of toxicologically relevant concentrations of ethylene glycol in whole blood (2018)
Journal Article

© 2018 The Royal Society of Chemistry. A simple and rapid method involving thermal desorption gas chromatography (TD-GC) with flame ionisation detection has been successfully developed for the determination of ethylene glycol in whole blood. No sampl... Read More about Direct thermal desorption gas chromatographic determination of toxicologically relevant concentrations of ethylene glycol in whole blood.

Alpha-synuclein ferrireductase activity is detectible in vivo, is altered in Parkinson's disease and increases the neurotoxicity of DOPAL (2017)
Journal Article

© 2017 Elsevier Inc. The normal cellular role of α-synuclein is of potential importance in understanding diseases in which an aggregated form of the protein has been implicated. A potential loss or change in the normal function of α-synuclein could p... Read More about Alpha-synuclein ferrireductase activity is detectible in vivo, is altered in Parkinson's disease and increases the neurotoxicity of DOPAL.

Cheap and disposable gold and silver electrodes: Trends in the application of compact discs and digital versatile discs for electroanalytical chemistry (2017)
Journal Article

© 2017 Increasingly more reports have focused on the use of digital versatile discs (DVDs) and compact discs (CDs) for the fabrication of electrodes. The majority of discs use Al to reflect the laser. However, a notable percentage utilise Au or Ag. T... Read More about Cheap and disposable gold and silver electrodes: Trends in the application of compact discs and digital versatile discs for electroanalytical chemistry.

Voltammetric behaviour of zinc at a 3-D printed carbon nanofiber–graphite–polystyrene electrode and its anodic stripping voltammetric determination in water (2017)
Presentation / Conference Contribution

Previous studies have shown the possibility of 3-D printing carbon electrodes. However, these studies required further fabrication steps. In this present investigation we show for the first time the possibility of utilising fully 3-D printed carbon n... Read More about Voltammetric behaviour of zinc at a 3-D printed carbon nanofiber–graphite–polystyrene electrode and its anodic stripping voltammetric determination in water.