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- Title
New Schiff Base-Linked Arylazopyrazoles as Reagents for the Photometric Detection of Fluoride Ions.
- Authors
Kumar, Manish; Agarkar, Harshawardhan; Degani, Mariam S.
- Abstract
A novel class of reagents (L1–3) containing arylazopyrazole moiety linked to a Schiff base have been synthesized and investigated for anion sensing applications. All three compounds exhibited excellent sensitivity and selectivity toward selective colorimetric detection of F– in dimethyl sulfoxide. F– sensing mechanisms have been explored by various spectroscopic techniques, viz., 1H NMR, IR, UV-visible, and fluorescence spectroscopy. A clear qualitative and quantitative detection of F– was possible with specificity and good sensitivity with L2 giving optimum results. The LOD value of L2 toward F– was found to be 7 µM. These reagents were applied for fluoride detection in commercial toothpaste as well.
- Subjects
SCHIFF bases; IONS; FLUORESCENCE spectroscopy; DIMETHYL sulfoxide; FLUORIDES; CHEMICAL ionization mass spectrometry; SULFOXIDES
- Publication
Journal of Analytical Chemistry, 2023, Vol 78, Issue 7, p866
- ISSN
1061-9348
- Publication type
Article
- DOI
10.1134/S1061934823070109