Development of an electrochemical sensor utilizing MWCNs-poly(2-aminothiophenol) @AgNPs nanocomposite for the simultaneous determination of Pb2+ and Cd2+ in food samples

Food Chemistry, Journal Year: 2025, Volume and Issue: 477, P. 143529 - 143529

Published: Feb. 20, 2025

Language: Английский

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Development of a Carbon Paste Electrode Modified with Saffron-Conjugated Silver Nanoparticles for the Simultaneous Determination of Cd, Pb, Zn, Cu and Cl in Soils and Plants

Chemosensors, Journal Year: 2025, Volume and Issue: 13(3), P. 91 - 91

Published: March 5, 2025

A simple and easily applicable analytical method for the simultaneous determination of Cd2+, Pb2+, Zn2+, Cu2+, Cl− by applying a modified carbon paste electrode with saffron-conjugated silver nanoparticles (AgNPs@Sa) is being presented. The CPE was then used Cu2+ as well chloride ions in soil plants. comparative analysis demonstrated significant enhancement applicability through incorporation (AgNPs) at (CPE) surface, leading to development poly-Sa-CPE. This newly proposed offers notably superior qualitative performance compared other metal nanoparticle-based modifications reported literature. accordingly successfully applied ion. novel sensor that makes possible heavy metals chlorides same solution, plant samples. enhanced sensitivity selectivity poly-Sa-CPE system highlights its potential more effective alternative analysis, further demonstrating advantages electrochemical applications. LODs their are 0.38 μg·L−1, 0.44 0.72 0.42 0.11 respectively, comparably high relative standard deviations about 8.1%, 9.4%, 8.3%, 7.6%, 7.9%, respectively.

Language: Английский

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Experimental Design Optimization of a Simple and Cost-Effective Voltammetric Method for On-Site Determination of Lead and Cadmium in Officinal Plant Leaves

Talanta, Journal Year: 2025, Volume and Issue: 292, P. 127912 - 127912

Published: March 13, 2025

This study introduces an improved method for the on-site quantification of cadmium and lead in officinal plants using differential pulse anodic stripping voltammetry (DP-ASV) with a glassy carbon electrode (GCE) modified by in-situ mercury film (iMF-GCE). Initial experiments, conducted one-variable-at-the-time (OVAT) approach, have provided suboptimal recovery rates linearity, factors refined later through systematic experimental approach involving two different designs: Plackett-Burman Face Centered Composite Design (FCCD). Certified reference materials confirmed method's reliability its potential effectiveness. The key parameters were optimized, achieving Edep -1.20 V tdep 195 s optimal performance. results obtained allowed substantial improvements accuracy, 85.8 % Cd 96.4 Pb, significantly lowered detection limits from, 1.54 μg L-1 to 0.63 from 0.15 0.045 Pb. Validation field applications demonstrated suitability analysis official plants. Other are environmental monitoring food safety control.

Language: Английский

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Smartphone-assisted Colorimetric Detection of Nickel(II) Ions using Novel Benzothiazole-Quinoline Dyad in Semi-aqueous Media

Analytical Methods, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 19, 2024

The chemosensor is capable of selectively detecting Ni 2+ ions in semi-aqueous media over a wide pH range and integrated into the smartphone-assisted RGB method, enabling low-cost portable detection.

Language: Английский

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