All Outputs (56)

Cyclic voltammetric behaviour and high-performance liquid chromatography amperometric determination of levamisole (2024)
Journal Article
Chan, T. Y. J., & Honeychurch, K. C. (2024). Cyclic voltammetric behaviour and high-performance liquid chromatography amperometric determination of levamisole. Sci, 6(1), Article 15. https://doi.org/10.3390/sci6010015

The electrochemical oxidation of levamisole, a glassy carbon electrode, was investigated over the pH range 2.0–10.0. Cyclic voltammetric investigations showed a single oxidation process was recorded, with a peak potential (Ep) shown to be pH-dependen... Read More about Cyclic voltammetric behaviour and high-performance liquid chromatography amperometric determination of levamisole.

Under-researched and under-reported new findings in microplastic field (2024)
Journal Article
Bohdan, K., & Honeychurch, K. C. (2024). Under-researched and under-reported new findings in microplastic field. Science of the Total Environment, 918, Article 170466. https://doi.org/10.1016/j.scitotenv.2024.170466

After over 20 years of research on microplastic (MP) pollution, there are important areas of study which are still at the inception. In particular, between 2020 and 2023 new findings on MP have emerged, which open new sub-categories of MP research. T... Read More about Under-researched and under-reported new findings in microplastic field.

Development of an on-column trace enrichment method for the determination of sub-μg/L bisphenol A in bottled water by RP-HPLC with fluorescent detection (2024)
Journal Article
Honeychurch, K. C. (2024). Development of an on-column trace enrichment method for the determination of sub-μg/L bisphenol A in bottled water by RP-HPLC with fluorescent detection. International Journal of Analytical Chemistry, 2024, Article 8258123. https://doi.org/10.1155/2024/8258123

A simple extraction-free, on-column trace enrichment liquid chromatographic method for the determination of trace levels of bisphenol A (BPA) in bottled water samples has been developed. It was found possible to determine ng/L (ppt) levels of BPA by... Read More about Development of an on-column trace enrichment method for the determination of sub-μg/L bisphenol A in bottled water by RP-HPLC with fluorescent detection.

Digital image colorimetry smartphone determination of acetaminophen (2023)
Journal Article
James, H., & Honeychurch, K. C. (2024). Digital image colorimetry smartphone determination of acetaminophen. Journal of Chemical Education, https://doi.org/10.1021/acs.jchemed.3c00659

Acetaminophen can be determined colorimetrically via its reduction of ferricyanide to give ferrocyanide. The ferrocyanide formed can then be converted to the highly colored compound, Prussian Blue, via the addition of iron(III). Quantification is com... Read More about Digital image colorimetry smartphone determination of acetaminophen.

Determination of licit and illicit drugs and metabolites in human sweat by liquid chromatography-tandem mass spectrometry (2023)
Journal Article
Sotom, M., Bowdler, P., & Honeychurch, K. C. (2023). Determination of licit and illicit drugs and metabolites in human sweat by liquid chromatography-tandem mass spectrometry. Analytical Methods, 15(33), 4085-4093. https://doi.org/10.1039/D3AY00678F

A liquid chromatography-tandem mass spectrometry screening method in sweat was developed for the simultaneous determination of three licit drugs (nicotine, paracetamol, and caffeine); four illicit drugs (cocaine, ketamine, 25I-NBOMe and methamphetami... Read More about Determination of licit and illicit drugs and metabolites in human sweat by liquid chromatography-tandem mass spectrometry.

Graphene-based electrodes for monitoring of Estradiol (2023)
Journal Article
Musa, A. M., Kiely, J., Luxton, R., & Honeychurch, K. C. (2023). Graphene-based electrodes for monitoring of Estradiol. Chemosensors, 11(6), 337. https://doi.org/10.3390/chemosensors11060337

This study explores the potential use of graphene-based electrodes in the electrochemical determination of estradiol using amperometric techniques as a simple, enzyme-free approach. Graphene, a carbon-based nanomaterial, has been extensively investig... Read More about Graphene-based electrodes for monitoring of Estradiol.

An electrochemical screen-printed sensor based on gold-nanoparticle-decorated reduced graphene oxide–carbon nanotubes composites for the determination of 17-β estradiol (2023)
Journal Article
Musa, A., Kiely, J., Luxton, R., & Honeychurch, K. C. (2023). An electrochemical screen-printed sensor based on gold-nanoparticle-decorated reduced graphene oxide–carbon nanotubes composites for the determination of 17-β estradiol. Biosensors, 13(4), Article 491. https://doi.org/10.3390/bios13040491

In this study, a screen-printed electrode (SPE) modified with gold-nanoparticle-decorated reduced graphene oxide–carbon nanotubes (rGO-AuNPs/CNT/SPE) was used for the determination of estradiol (E2). The AuNPs were produced through an eco-friendly me... Read More about An electrochemical screen-printed sensor based on gold-nanoparticle-decorated reduced graphene oxide–carbon nanotubes composites for the determination of 17-β estradiol.

Voltammetric behaviour of Rhodamine B at a screen-printed Carbon electrode and its trace determination in environmental water samples (2022)
Journal Article
Honeychurch, K. C. (2022). Voltammetric behaviour of Rhodamine B at a screen-printed Carbon electrode and its trace determination in environmental water samples. Sensors, 22(12), 4631. https://doi.org/10.3390/s22124631

The voltammetric behaviour of Rhodamine B was studied at a screen‐printed carbon electrode (SPCE), by cyclic and differential pulse voltammetry. Cyclic voltammograms exhibited two reduction peaks (designated R1 and R2) generated from the reduction of... Read More about Voltammetric behaviour of Rhodamine B at a screen-printed Carbon electrode and its trace determination in environmental water samples.

Smartphone-based colorimetric determination of gamma-butyrolactone and gamma-hydroxybutyrate in alcoholic beverage samples (2022)
Journal Article
Procida, A., & Honeychurch, K. C. (2022). Smartphone-based colorimetric determination of gamma-butyrolactone and gamma-hydroxybutyrate in alcoholic beverage samples. Journal of Forensic Sciences, 67(4), 1697-1703. https://doi.org/10.1111/1556-4029.15042

Gamma-hydroxybutyrate (GBH) is a popular recreational drug. Its strong sedative and amnesic effects have led to drug-facilitated sexual assaults, poisonings, overdose, and death. As a result, legislation has restricted its availability leading to GHB... Read More about Smartphone-based colorimetric determination of gamma-butyrolactone and gamma-hydroxybutyrate in alcoholic beverage samples.

Forensic electrochemical presumptive blood test based on the voltammetric behaviour of methylene blue and whole blood (2021)
Journal Article
Cook, S., & Honeychurch, K. C. (2021). Forensic electrochemical presumptive blood test based on the voltammetric behaviour of methylene blue and whole blood. Analytical Methods, 13(42), 4985-4993. https://doi.org/10.1039/d1ay01358k

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.

Illicit drug contamination of the Bristol Pound local currency (2020)
Journal Article
Bowdler, P., Gale, E., Bryant, F., Codd, S., Hudd, S., Longden, R., …Honeychurch, K. C. (2020). Illicit drug contamination of the Bristol Pound local currency. Forensic Science International, 316, Article 110469. https://doi.org/10.1016/j.forsciint.2020.110469

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
Peng, X., Brown, M., Bowdler, P., & Honeychurch, K. C. (2020). Extraction-free, direct determination of caffeine in microliter volumes of beverages by thermal desorption-gas chromatography mass spectrometry. International Journal of Analytical Chemistry, 2020, 1-7. https://doi.org/10.1155/2020/5405184

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
Honeychurch, K. (2020). Cyclic voltammetric behaviour of 2,4-dinitrotoluene at a glassy carbon electrode. Scholarly Community Encyclopedia, 2019,

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.

Trace voltammetric determination of lead at a recycled battery carbon rod electrode (2019)
Journal Article
Honeychurch, K. (2019). Trace voltammetric determination of lead at a recycled battery carbon rod electrode. Sensors, 19(4), Article 770. https://doi.org/10.3390/s19040770

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.

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
Honeychurch, K. C., Rymansaib, Z., & Iravani, P. (2018). Anodic stripping voltammetric determination of zinc at a 3-D printed carbon nanofiber–graphite–polystyrene electrode using a carbon pseudo-reference electrode. Sensors and Actuators B: Chemical, 267, 476-482. https://doi.org/10.1016/j.snb.2018.04.054

© 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
Robson, J., Townsend, S., Bowdler, P., & Honeychurch, K. C. (2018). Direct thermal desorption gas chromatographic determination of toxicologically relevant concentrations of ethylene glycol in whole blood. Analyst, 143(4), 963-969. https://doi.org/10.1039/c7an02095c

© 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
McDowall, J. S., Ntai, I., Honeychurch, K. C., Hart, J. P., Colin, P., Schneider, B. L., & Brown, D. R. (2017). Alpha-synuclein ferrireductase activity is detectible in vivo, is altered in Parkinson's disease and increases the neurotoxicity of DOPAL. Molecular and Cellular Neuroscience, 85, 1-11. https://doi.org/10.1016/j.mcn.2017.08.001

© 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.

The determination of uric acid in human saliva by liquid chromatography with electrochemical detection (2017)
Journal Article
Honeychurch, K. C. (2017). The determination of uric acid in human saliva by liquid chromatography with electrochemical detection

A method employing high-performance liquid chromatography with electrochemical detection (LC-ED) has been successfully developed for the determination of uric acid in human salvia. The optimal chromatographic conditions were found to comprise a mobil... Read More about The determination of uric acid in human saliva by liquid chromatography with electrochemical detection.

Development of an electrochemical assay for the illegal “fat burner” 2,4-dinitrophenol and its potential application in forensic and biomedical analysis (2016)
Journal Article
Honeychurch, K. C. (2016). Development of an electrochemical assay for the illegal “fat burner” 2,4-dinitrophenol and its potential application in forensic and biomedical analysis. Advances in Analytical Chemistry, 6(2), 41-48. https://doi.org/10.5923/j.aac.20160602.02

The illegal use of 2,4-dinitrophenol (24DNP) as a diet aid has increased markedly resulting in a number of deaths. This paper describes the development of a simple voltammetric method for the measurement of 24DNP in serum at glassy carbon electrode... Read More about Development of an electrochemical assay for the illegal “fat burner” 2,4-dinitrophenol and its potential application in forensic and biomedical analysis.

Liquid Chromatography Electrochemical Determination of Nicotine in Third-Hand Smoke (2016)
Journal Article
Peng, X., Peng, X., Giltrow, D., Bowdler, P., & Honeychurch, K. C. (2017). Liquid Chromatography Electrochemical Determination of Nicotine in Third-Hand Smoke. Electroanalysis, 29(2), 374-379. https://doi.org/10.1002/elan.201600302

© 2017 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim Third-hand smoke (THS) can be defined as the contamination of surfaces by second-hand smoke. This residue can form further pollutants which can be re-suspended in dust or be re-emitted into the gas... Read More about Liquid Chromatography Electrochemical Determination of Nicotine in Third-Hand Smoke.