Promethazine-HCl Determination Using Entrapped Persulphate in Water Crystals by Flow Injection / Stopped - Flow Technique and Ayah 3SX3-3D Solar Cell Micro Photometer. Iraqi Journal of Science [Internet]. 2023 Jul. 2 [cited 2024 Dec. 21];56(1A):25-37. Available from: https://ijs.uobaghdad.edu.iq/index.php/eijs/article/view/10593