Teacher-researcher at the University of El-Oued. Class “A” teacher-assistant.Dr. HEMMAMI Hadia is an Associate Professor of Chemistry (MCA) at the Process Engineering & Petrolium Chemistry, University of El-oued , Studied Analytical Organic Chemistry in the University of El-Oued and received a Ph.D. in Electrochemistry Analytical and Environment interest from the University of El-Oued, Algeria.Web of Science ResearcherID AAP-6008-2021