caa a22 4500 445879602 CHVBK 20180317145538.0 cr unu---uuuuu 170323e20110301xx s 000 0 eng 10.1007/s00604-010-0451-9 doi (NATIONALLICENCE)springer-10.1007/s00604-010-0451-9 Dispersive liquid-liquid microextraction for the analysis of three organophosphorus pesticides in real samples by high performance liquid chromatography-ultraviolet detection and its optimization by experimental design [Elektronische Daten] [Mir Farajzadeh, Morteza Bahram, Mohammad Vardast, Mehdi Bamorowat] A method was developed for analyzing the organophosphorus pesticides Fenitrothion, Diazinon and Ethion in water samples via dispersive liquid-liquid microextraction and high-performance liquid chromatography. Chloroform and methanol were selected as extraction and dispersive solvents, respectively. Extraction and dispersive solvents (and their volumes), the pH of the sample, and salting out effect were optimized to give a calibration plot that is linear in the range from 10 to 4000ng.mL−1. Detection limits are 2ng.mL−1 for Fenitrothion and 3ng.mL−1 for Diazinon and Ethion. The relative standard deviations for six replicate measurements of 500ng.mL−1 of the three pesticides are 3.3, 2.2 and 4.1%, respectively. Springer-Verlag, 2010 Organophosphorus pesticides nationallicence Dispersive liquid-liquid microextraction nationallicence Central composite design nationallicence High-performance liquid chromatography nationallicence Farajzadeh Mir Department of Analytical Chemistry, Faculty of Chemistry, University of Tabriz, Tabriz, Iran aut Bahram Morteza Department of Chemistry, Faculty of Science, Urmia University, Urmia, Iran aut Vardast Mohammad Department of Chemistry, Faculty of Science, Urmia University, Urmia, Iran aut Bamorowat Mehdi GYAH Corporation, Garmdarreh, Karadj Road, Tehran, Iran aut Microchimica Acta Springer Vienna 172/3-4(2011-03-01), 465-470 0026-3672 172:3-4<465 2011 172 604 https://doi.org/10.1007/s00604-010-0451-9 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s00604-010-0451-9 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Farajzadeh Mir Department of Analytical Chemistry, Faculty of Chemistry, University of Tabriz, Tabriz, Iran aut NATIONALLICENCE 700 1- Bahram Morteza Department of Chemistry, Faculty of Science, Urmia University, Urmia, Iran aut NATIONALLICENCE 700 1- Vardast Mohammad Department of Chemistry, Faculty of Science, Urmia University, Urmia, Iran aut NATIONALLICENCE 700 1- Bamorowat Mehdi GYAH Corporation, Garmdarreh, Karadj Road, Tehran, Iran aut NATIONALLICENCE 773 0- Microchimica Acta Springer Vienna 172/3-4(2011-03-01), 465-470 0026-3672 172:3-4<465 2011 172 604 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer