ISSN: 2249-9504
CAS CODEN: IJPCDX

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Citations : 3566

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International Journal of Pharmaceutical, Chemical and Biological Sciences peer review process verified at publons

ESTIMATION OF CAFFEINE AND SODIUM BENZOATE IN CAFFEINE AND SODIUM BENZOATE INJECTION BY ISOABSORPTION METHOD (ISOBESTIC METHOD)

Abstract

Author(s): K. Venkata Sowmya, K. Ravishankar, D. Peer Basha and G.V.N. Kiranmayi

Caffeine and Sodium benzoate present in Caffeine and Sodium Benzoate injection was estimated by isoabsorption assay method using UV spectrophotometer. Maximum absorbance of Caffeine and Sodium Benzoate was recorded at 273nm and 224nm and the isobestic point is at 242nm. Each ml of injection solution consists of 125mg of caffeine and 125mg of sodiumbenzoate, a concentration of 10µg/ml of Caffeine and Sodium Benzoate was prepared and absorbance was recorded at 273nm and 224nm. Pure Sodium Benzoate, Caffeine solutions were prepared at concentration of 20µg/ml and the absorbance is measured in the region of 300-200nm.

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