caa a22 4500 445802758 CHVBK 20180317145146.0 cr unu---uuuuu 170323e20110501xx s 000 0 eng 10.1007/s10337-011-1973-y doi (NATIONALLICENCE)springer-10.1007/s10337-011-1973-y Determination of Chlorophenoxy Acid Herbicides in Water Samples by Suspended Liquid-Phase Microextraction-Liquid Chromatography [Elektronische Daten] [Jalal Hassan, Mojtaba Shamsipur, Ali Es'haghi, Sasan Fazili] In this study, directly suspended liquid-phase microextraction was investigated for the extraction and determination of five chlorophenoxy acid herbicides in water samples. The optimized parameters for extraction of chlorophenoxy acid herbicides were 1M HCl concentration in sample solution, solution temperature 20°C, 45-min extraction time, 1,000rpm stirring rate, 25μL extracting solvent volume and without NaCl addition. Under the optimum conditions, the enrichment factor ranged from 192 to 390. Calibration curves yielded good linearity (R 2>0.999) and the linear range was 5.0-500.0μgL−1, limit of detection was 0.3-0.4μgL−1 and limit of quantification was 1-2μgL−1 for analytes and the relative standard deviations were in the range of 3-10% (n=3). Finally, the proposed method was successfully applied to the quantification of five chlorophenoxy acid herbicides in water samples and recovery was in the range of 74-110%. Springer-Verlag, 2011 Column Liquid chromatography nationallicence DSLPME nationallicence Preconcentration nationallicence Chlorophenoxy acid herbicides nationallicence Hassan Jalal Department of Chemistry, Faculty of Sciences, Tarbiat Modarres University, Tehran, Iran aut Shamsipur Mojtaba Department of Chemistry, Faculty of Sciences, Razi University, Kermanshah, Iran aut Es'haghi Ali Industrial Fertilizer and Pesticide Research Center, Karaj, Iran aut Fazili Sasan Industrial Fertilizer and Pesticide Research Center, Karaj, Iran aut Chromatographia Springer-Verlag 73/9-10(2011-05-01), 999-1003 0009-5893 73:9-10<999 2011 73 10337 https://doi.org/10.1007/s10337-011-1973-y text/html Onlinezugriff via DOI 1 brief-communication jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10337-011-1973-y text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Hassan Jalal Department of Chemistry, Faculty of Sciences, Tarbiat Modarres University, Tehran, Iran aut NATIONALLICENCE 700 1- Shamsipur Mojtaba Department of Chemistry, Faculty of Sciences, Razi University, Kermanshah, Iran aut NATIONALLICENCE 700 1- Es'haghi Ali Industrial Fertilizer and Pesticide Research Center, Karaj, Iran aut NATIONALLICENCE 700 1- Fazili Sasan Industrial Fertilizer and Pesticide Research Center, Karaj, Iran aut NATIONALLICENCE 773 0- Chromatographia Springer-Verlag 73/9-10(2011-05-01), 999-1003 0009-5893 73:9-10<999 2011 73 10337 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer