Derivatizing agents for spectrophotometric and spectrofluorimetric determination of pharmaceuticals: a review

V Kumar Vashistha, R Bala… - Journal of Taibah …, 2023 - Taylor & Francis
Most drug structures lack appropriate chromophores that can be examined at wavelengths
other than the generic UV part of the electromagnetic spectrum. Indirect spectrophotometric …

Nano-scale multi-spectroscopic analysis of the anti-fibromyalgia drug pregabalin based on dihydropyridine ring formation with sustainability and whiteness evaluation

MA El Hamd, RH Obaydo, MI Helmy, WA Mahdi… - … Acta Part A: Molecular …, 2025 - Elsevier
This research addresses the challenge of analyzing pregabalin, a primary amine in a
zwitterionic structure, which is difficult to evaluate due to its lack of chromatophore. The study …