caa a22 4500 445881631 CHVBK 20180317145545.0 cr unu---uuuuu 170323e20110701xx s 000 0 eng 10.1007/s00604-011-0607-2 doi (NATIONALLICENCE)springer-10.1007/s00604-011-0607-2 Determination of triclosan and triclocarban in environmental water samples with ionic liquid/ionic liquid dispersive liquid-liquid microextraction prior to HPLC-ESI-MS/MS [Elektronische Daten] [Ru-Song Zhao, Xia Wang, Jing Sun, Cong Hu, Xi-Kui Wang] A hydrophobic ionic liquid was finely dispersed in aqueous solution along with a hydrophilic ionic liquid. Following centrifugation, the two phases aggregate to form relatively large droplets. Based on this phenomenon, a method termed ionic liquid/ionic liquid dispersive liquid-liquid microextraction was developed. It was applied to the enrichment of triclosan (TCS) and triclocarban (TCC) from water samples prior to HPLC with electrospray tandem MS detection. The type and volume of the hydrophobic ionic liquid (the extraction solvent) and the hydrophilic ionic liquid (the disperser solvent), salt content, and extraction time were optimized. Under optimum conditions, the method gives a linear response in the concentration ranges from 0.5 to 100μg L−1 for TCC and from 2.5 to 500μg L−1 for TCS, respectively. The limits of detection are 0.23 and 0.35μg L−1, and the repeatability is 5.4 and 6.4% for TCC and TCS, respectively. The method was validated with four environmental water samples, and average recoveries of spiked samples were in the range from 88% to 111%. The results indicate that the method is a promising new approach for the rapid enrichment and determination of organic pollutants. Ionic liquids [C8MIM][PF6] and [C4MIM][BF4] were used as extractant and disperser in dispersive liquid-liquid microextraction for the enrichment and determination of triclosan and triclocarban in environmental water samples prior to HPLC-ESI-MS/MS. Experimental results indicated that it was a feasible alternative to existing methods. Springer-Verlag, 2011 Triclosan nationallicence Triclocarban nationallicence Water samples nationallicence Ionic liquid/ionic liquid dispersive liquid-liquid microextraction nationallicence High-performance liquid chromatography-electrospray tandem mass spectrometry nationallicence Zhao Ru-Song Key Laboratory for Applied Technology of Sophisticated Analytical Instruments of Shandong Province, Analysis and Test Center, Shandong Academy of Sciences, 250014, Jinan, China aut Wang Xia Key Laboratory for Applied Technology of Sophisticated Analytical Instruments of Shandong Province, Analysis and Test Center, Shandong Academy of Sciences, 250014, Jinan, China aut Sun Jing Key Laboratory for Applied Technology of Sophisticated Analytical Instruments of Shandong Province, Analysis and Test Center, Shandong Academy of Sciences, 250014, Jinan, China aut Hu Cong Key Laboratory for Applied Technology of Sophisticated Analytical Instruments of Shandong Province, Analysis and Test Center, Shandong Academy of Sciences, 250014, Jinan, China aut Wang Xi-Kui Shandong Institute of Light Industry, 250353, Jinan, China aut Microchimica Acta Springer Vienna 174/1-2(2011-07-01), 145-151 0026-3672 174:1-2<145 2011 174 604 https://doi.org/10.1007/s00604-011-0607-2 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s00604-011-0607-2 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Zhao Ru-Song Key Laboratory for Applied Technology of Sophisticated Analytical Instruments of Shandong Province, Analysis and Test Center, Shandong Academy of Sciences, 250014, Jinan, China aut NATIONALLICENCE 700 1- Wang Xia Key Laboratory for Applied Technology of Sophisticated Analytical Instruments of Shandong Province, Analysis and Test Center, Shandong Academy of Sciences, 250014, Jinan, China aut NATIONALLICENCE 700 1- Sun Jing Key Laboratory for Applied Technology of Sophisticated Analytical Instruments of Shandong Province, Analysis and Test Center, Shandong Academy of Sciences, 250014, Jinan, China aut NATIONALLICENCE 700 1- Hu Cong Key Laboratory for Applied Technology of Sophisticated Analytical Instruments of Shandong Province, Analysis and Test Center, Shandong Academy of Sciences, 250014, Jinan, China aut NATIONALLICENCE 700 1- Wang Xi-Kui Shandong Institute of Light Industry, 250353, Jinan, China aut NATIONALLICENCE 773 0- Microchimica Acta Springer Vienna 174/1-2(2011-07-01), 145-151 0026-3672 174:1-2<145 2011 174 604 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer