André Rolim, Tânia Oishi, Carolina P M Maciel, Vivian Zague, Claudinéia A S O Pinto, Telma M Kaneko, Vladi O Consiglieri, Maria Valéria R Velasco
A new derivative spectrophotometric (DS) method was proposed and validated for quantification of total flavonoids from in O/W emulsion with polyacrylamide (and) C13-14 isoparaffin (and) laureth-7 containing Catuaba (Trichilia catigua Adr. Juss) (and) Marapuama (Ptychopetalum olacoides Bentham) extract. DS method was optimized to perform the assay in most favorable conditions. Linearity, specificity and selectivity, recovery (Rc, %), precision (R.S.D., %), accuracy (E, %), detection (LOD, microg ml(-1)) and quantification limits (LOQ, microg ml(-1)) were established for method validation...
February 3, 2006: International Journal of Pharmaceutics