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Spectrophotometric Determination of Promethazine Hydrochloride by In (III) | ||
| Journal Of Wassit For Science & Medicine | ||
| Article 1, Volume 2, Issue 2, 2009, Pages 49-59 | ||
| Author | ||
| Alham Ngamesh Mezal | ||
| Abstract | ||
| A simple, rapid and sensitive spectrophotometirc method for the determination of trace amounts of promethazine hydrochloride in the aqueous solution is described. The method is based on the complexation of promethazine hydrochloride with In (III) in the presence of sodium hydroxide to form an soluble product with maximum absorption at 304nm. Beer’s law is obeyed over the concentration range of (2-20μg/ml) with molar absorptivity of (1.92× 103 L.mol-1.cm-1). The optimum conditions for all development are described and the proposed method has been successfully applied for the determination of promethazine hydrochloride in bulk drug. | ||
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