Abstract
A simiple, rapid, and highly sensitive fast microbore HPLC method with UV detection has been developed for the quantitation of coenzyme Q10 (Co-Q10) and related substances in raw material, pharmaceutical, and cosmetic formulations using a column with hybrid particles. Chromatographic conditions were: 30ºC column temperature, 1 µL injection volume at 275 nm. The Co-Q10 analysis was performed within 2.5 minutes with a flow rate of 0.3 mL/min. with a mobile phase consisted of 100% methanol, and the related substances were separated with a gradient elution based on methanol-water. The developed method was validated for selectivity, linearity, precision, accuracy, and robutness. The method was found to be suitable for the quality control of Co-Q10 in pharmaceutical and cosmetic products, as well as the stability indicating studies.
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