Ilaybi, H.J. and Hussien, M.A. 2023. Semi – Automation Design Using Flow Injection Analysis System with Smart Phone for the Determination of Total Phenols in Wastewater. Biomedicine and Chemical Sciences. 2, 1 (Jan. 2023), 58–62. DOI:https://doi.org/10.48112/bcs.v2i1.381.