مشخصات پژوهش

عنوان	Deep eutectic solvents as extraction phase in head-space single-drop microextraction for determination of pesticides in fruit juice and vegetable samples
نوع پژوهش	مقاله چاپ‌شده در مجلات علمی
کلیدواژه‌ها	Deep eutectic solvent Triazole pesticides Single drop microextraction Flame ionization detection Gas chromatography-mass spectrometry Preconcentration Fruit juice and vegetable samples
چکیده	In the present work, a new class of solvents in the name of deep eutectic solvent were prepared and used as a liquid extraction phase in a headspace single-drop microextraction method for the preconcentration of triazole fungicides from fruit juice and vegetable samples by gas chromatography. The significant parameters headspace single-drop microextraction process (the type of eutectic solvent, drop volume, stirring speed, pH and extraction temperature were optimized. Three different deep eutectic solvents, including choline chloride (as a hydrogen bond acceptor) and ethylene glycol, phenol and 4-chlorophenol (as a hydrogen bond donor) were prepared and evaluated. Choline chloride: 4-chlorophenol is the highest extraction efficiencies for the target analytes among the tested deep eutectic solvents. The limit of detections (LODs) were between 0.82 and 1.0 μgL−1 with the relative standard deviation (RSD %) ranging from 3.9 to 6.2.
پژوهشگران	مهدی ابوالقاسمی (نفر اول)، مرضیه پیریائی (نفر دوم)، رقیه ایمانی (نفر سوم)