Analytical Applications of Voltammetry in the Determination of Heavy Metals in Soils, Plant Tissues, and Water—Prospects and Limitations in the Co-Identification of Metal Cations in Environmental Samples

Analytica—A Journal of Analytical Chemistry and Chemical Analysis, Journal Year: 2024, Volume and Issue: 5(3), P. 358 - 383

Published: Aug. 2, 2024

Heavy metals represent a class of chemical elements that includes metalloids, bases and transition metals, lanthanides, actinides. They are distinguished for their toxicity in small concentrations negative effects on the environment human health; consequently, monitoring has to be improved manage risks. The determination heavy is carried out mainly by analytical methods, using spectroscopy, spectrometry, electroanalysis. However, interest shifted new faster methodologies techniques metal analysis, with particular emphasis voltammetry. Voltammetry preferred detection owing advantages low cost, simplicity, ease operation, fast portability, ability monitor environmental samples field, high sensitivity selectivity. Therefore, this study summarizes applications voltammetry water, soil, plant samples, presents an evaluation sensitivity, selectivity, applicability.

Language: Английский

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

Effect of Bi(iii)-to-metal ion concentration ratios on stripping voltammetric response of bismuth-film glassy carbon electrodes

RSC Advances, Journal Year: 2024, Volume and Issue: 14(53), P. 39361 - 39371

Published: Jan. 1, 2024

The effect of c Bi / M ratio on key evaluation indicators, including sensitivity, precision, and cathodic potential range, has been investigated for the determination Cd Pb at in situ prepared bismuth film electrodes.

Language: Английский