Work

Electrochemical synthesis of Betti bases and their application as fluorescent probes for Hg2+ ions

Year: 2025

Type: article

Abstract: The present study included the first electrochemical synthesis of Betti bases in deep eutectic solvents as a green and sustainable method of synthesis. The reaction conditions were optimized by varying different factors like time and type of electrode material. The prepared compounds were utilized as fluorescent probe for mercury ions. The fluorescence intensity of the synthesized Betti base derivatives 4a-e was investigated and the highest fluorescence intensity was displayed by compound 4e (the 2-fluorophenyl derivative). The Betti base 4e showed excitation/emission peaks at 368/461 nm, respectively. The Betti based fluorescence was quenched by Hg 2+ ions. The fluorescent probe responded linearly to Hg 2+ concentration in the range of 0.2 to 10.0 µM. The limit of detection (LOD) was estimated to be 0.041 µM. The Stern-Volmer constant (K sv ) was calculated to be 2.69 ± 0.07 × 10 5 M -1 .

Source: BMC Chemistry

DOI: 10.1186/s13065-025-01638-4

Authors: Eman A. El-Khouly, Amr M. Mahmoud, Hala B. El-Nassan

Institution: Cairo University

Language: English

Topic: Molecular Sensors and Ion Detection

Subfield: Spectroscopy

Field: Chemistry

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $2,990

Funder: Cairo University