Ultrasonic assisted liquid phase microextraction of Pb۲+ based on deep eutectic solvent followed by electrothermal atomic absorption spectrometry

Department of Geology, Faculty of Science, Ferdowsi University of Mashhad, Mashhad, Iran

Department of Chemistry,Mashhad Branch, Islamic Azad University, Mashhad Iran

Department of Chemistry, Hashminejad Campus, Farhangian University, Mashhad, Iran

Department of Chemistry, Mashhad Branch, Islamic Azad University, Mashhad, Iran