Outputs (10)

Experiments in digital image colorimetry: Smartphone determination of acetaminophen (2025)
Presentation / Conference Contribution

Acetaminophen paracetamol) can be determined colorimetrically (scheme 1) by firstly, reducing ferricyanide to ferrocyanide. This can then be converted to the highly coloured Prussian Blue, following the addition of iron(III ). Traditionally, this is... Read More about Experiments in digital image colorimetry: Smartphone determination of acetaminophen.

Digital image colorimetry smartphone-based determination of hydrogen peroxide using titanium oxysulfate and red, green, and blue analysis (2025)
Journal Article

Previous studies have shown the possibility of colorimetrically determining hydrogen peroxide by its reaction with titanium oxysulfate, to give an orange-coloured complex (absorbance maxima = 410 nm). In this present investigation, we show the possib... Read More about Digital image colorimetry smartphone-based determination of hydrogen peroxide using titanium oxysulfate and red, green, and blue analysis.

An anodic stripping voltammetric approach for total mercury determination in sea sponges from the Niger Delta region of Nigeria (2024)
Journal Article

Mercury pollution from ongoing crude oil refining and waste disposal activities threatens aquatic ecosystems and human health in the Niger Delta. Mercury monitoring exercise in this region is challenging due to the high cost of traditional instrument... Read More about An anodic stripping voltammetric approach for total mercury determination in sea sponges from the Niger Delta region of Nigeria.

Cyclic voltammetric behaviour and high-performance liquid chromatography amperometric determination of levamisole (2024)
Journal Article

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

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

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

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.

New applications of gas chromatography and gas chromatography-mass spectrometry for novel sample matrices in the forensic sciences: A literature review (2023)
Journal Article

The investigation of novel sample matrices in the forensic sciences offers several possible advantages, such as allowing for results to be obtained in cases where common sample types are absent. This review focuses on the application of gas chromatog... Read More about New applications of gas chromatography and gas chromatography-mass spectrometry for novel sample matrices in the forensic sciences: A literature review.

WATER'S SILENT HORMONE MONITORING: A novel electrochemical sensor for on-site detection of estradiol in water (2023)
Presentation / Conference Contribution

The supply of safe drinking water is paramount for the health and well-being of people across the globe. Environmental pollutants such as estradiol (E2) threaten water supplies. Estradiol contamination of water sources is a growing global concern tha... Read More about WATER'S SILENT HORMONE MONITORING: A novel electrochemical sensor for on-site detection of estradiol in water.

Determination of licit and illicit drugs and metabolites in human sweat by liquid chromatography-tandem mass spectrometry (2023)
Journal Article

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.