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 Sci.J [Internet]. 2013 Dec. 1 [cited 2024 May 17];10(4):1190-202. Available from: https://bsj.uobaghdad.edu.iq/index.php/BSJ/article/view/2832