Chapter 13. The coordination chemistry of open-chain polydentate ligands

Ward, M. D.

doi:10.1039/ic9908700253

Cited by 2 publications

(1 citation statement)

References 6 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The absorption spectral characteristics of Fe(bpy) 3 2 + immobilized Nf-MWCNTs were studied using the Nf-MWCNTs/Fe-(bpy) 3 2 + film formed on a glass plate. It exhibits absorption maxima at 355 and 526 nm (Figure 1Bc) which shows slight changes in comparison to the peak positions of an aqueous solution of Fe(bpy) 3 2 + (Figure 1Bb) at 350 and 525 nm [21,34,42,43]. The UV-Vis spectrum of Nf-MWCNTs on the glass plate exhibits no absorption maxima above 300 nm [44][45][46].…”

Section: Instrumentationmentioning

confidence: 92%

Nafion‐multi‐walled Carbon Nanotubes Supported Tris(bipyridyl)iron(II) for Nicotine Detection

et al. 2022

View full text Add to dashboard Cite

This work reports an electrochemical sensing framework for nicotine determination based on glassy carbon electrode (GC) immobilized with Fe(bpy)32+ (where bpy is 2,2’‐bipyridyl) supported by Nafion and multi‐walled carbon nanotubes (Nf‐MWCNTs). Fe(bpy)32+ immobilized Nf‐MWCNTs modified GC (GC/Nf‐MWCNTs/Fe(bpy)32+) manifests stable redox peaks, characteristics of Fe(bpy)32+. The GC/Nf‐MWCNTs/Fe(bpy)32+ exhibits effective electrochemical oxidation of nicotine, diminishing the overpotential relative to GC/Nf‐MWCNTs. The limit of detection is 0.1 μM (experimentally observed) with two different linear calibration ranges between 0.1 to 600 μM and 600 to 3000 μM. Electrocatalytic responses observed at GC/Nf‐MWCNTs/Fe(bpy)32+ indicate superior performance for nicotine determination with acceptable selectivity, stability, and reproducibility. Additionally, the nicotine present in real samples such as beedi and tobacco are also analyzed with satisfactory recovery percentages.

show abstract