In this study, graphitic-carbon-nitrid was used as sorbent for thin film microextraction of propoxur from enviromental water samples. Crona dis charge-ion mobility specterometry (CD-IMS) , as detection system was employed for detection of propoxur.Propoxur is a thermal sensitive compound, so an ultrasonic injection port was used for introduce IMS whitout any thermal operation. The effect of various parameters such as effect of temperatur , ionic strength, pH, rotating speed, time extraction,desorption solvent, desorption time, desorption solvent volume and gas flow rate were investigated. Under the optimal conditions linear range of methode was obtained from 50-1500 µg.l -1 .The limit of detection was 20 µg.l -1 . Spiking recovery value were achieved between 80 - 113 % Relative standard deviation for propoxur ranged from 1-5%. Wastewater from Esfahan surround were studied as real sample for the evaluation of the method.
