Title A Voltammetric Sensor for Determination of Morin at Stacked Cu Nanoparticles Immobilized on l- Arginine Film Nanocomposite Modified GCE Type of Research Presentation Keywords - Abstract - Researchers (First Researcher)، ali pashazadeh (Second Researcher)، younes bahadori (Third Researcher)، Biuck Habibi (Fourth Researcher)