عنوان	A kinetic method for the determination of thiourea by its catalytic effect in micellar media
نوع پژوهش	مقاله چاپ‌شده در مجلات علمی
کلیدواژه‌ها	Thiourea Janus green Catalytic Spectrophotometry Micellar medium
چکیده	A highly sensitive, selective and simple kinetic method was developed for the determination of trace levels of thiourea based on its catalytic effect on the oxidation of janus green in phosphoric acid media and presence of Triton X-100 surfactant without any separation and pre-concentration steps. The reaction was monitored spectrophotometrically by tracing the formation of the green-colored oxidized product of janus green at 617 nm within 15 min of mixing the reagents. The effect of some factors on the reaction speedwas investigated. Following the recommended procedure, thiourea could be determined with linear calibration graph in 0.03–10.00g/ml range. The detection limit of the proposed method is 0.02g/ml. Most of foreign species do not interfere with the determination. The high sensitivity and selectivity of the proposed method allowed its successful application to fruit juice and industrial waste water
پژوهشگران	شهریار عباسی (نفر اول)، حسین خانی (نفر دوم)، محمدباقر قلیوند (نفر سوم)، علی نقی پور (نفر چهارم)، عباس فرمانی (نفر پنجم)، فرشته عباسی (نفر ششم به بعد)