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Development and validation of a simple and economical spectrofluorimetric method for estimation of quinine in pharmaceutical dosage forms

A new simple, sensitive, precise, economic and “green” spectrofluorimetric method for the determination of quinine both as a bulk drug and in tablet formulations was developed and validated using water as solvent. At a predetermined excitation wavelength (330 nm) and emission wavelength (380 nm), it was proved linear in the concentration range of 50-500 ng/mL, exhibited good correlation coefficient (R2= 0.999) and excellent mean recovery (97.5-103%). The results of the recovery studies showed that the method was not affected by the presence of common excipients. The method was applied for the analysis of the drug in the pure, tablet and injectable forms. The method was validated for precision, accuracy and recovery studies. Limit of Detection and Limit of Quantification for quinine were found to be 16.6 ng/mL and 19.8 ng/mL respectively. The method has been successfully applied for the analysis of marketed formulations available in Senegal.


Auteur(s) : SARR SO, FALL D, NDIAYE SM, DIEDHIOU A, DIOP A, NDIAYE B, DIOP YM
Pages : 366-376
Année de publication : 2013
Revue : International Journal of Biological and Chemical Science
N° de volume : 7(1)
Type : Article
Mise en ligne par : DIOP Amadou