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2013. Flow injection analysis for the photometric determination of promethazine-HCl in pure and pharmaceutical preparation via oxidation by persulphate using Ayah 3SX3-3D solar micro photometer. Baghdad Science Journal. 10, 4 (Dec. 2013), 1190–1202. DOI:https://doi.org/10.21123/bsj.2013.10.4.1190-1202.