Use of Π-Acceptors for Spectrophotometric Determination of Dicyclomine Hydrochloride

Autor: Kamal M Abdel Moneim, Lories I. Bebawy, Yosry M Issa
Rok vydání: 2003
Předmět:
Zdroj: Journal of AOAC INTERNATIONAL. 86:1-7
ISSN: 1944-7922
1060-3271
DOI: 10.1093/jaoac/86.1.1
Popis: Simple, rapid, accurate, and sensitive spectrophotometric methods are described for the determination of dicyclomine hydrochloride. The methods are based on the reaction of this drug as an n-electron donor with 2,3-dichloro-5,6-dicyano-p-benzoqunione (DDQ), p-chloranilic acid (p-CA), and chloranil (CL) as Π-acceptors to give highly colored complex species. The colored products are measured spectrophotometrically at 456, 530, and 650 nm for DDQ, p-CA, and CL, respectively. Optimization of the different experimental conditions were studied. Beer's law was obeyed in concentration ranges of 20–100, 50–250, and 80–600 μg/mL for DDQ, p-CA, and CL, respectively. Colored complexes are produced in organic solvents and are stable for at least 1 h. The methods were applied to Spasmorest™ antispasmotic tablets and ampoules with good accuracy and precision.
Databáze: OpenAIRE