فهرست مقالات Shahin Ahmadi مقاله 1 - Preconcentration and Determination of Theophylline in Water Samples using Magnetic Nano-Cellulose with Dispersive Solid Phase Extraction Parastoo Molaei ali moghimi Shahin Ahmadi seyedali sobhanian Journal of Applied Chemical Research , شماره 3 , سال 18 , تابستان 1403