caa a22 4500 445880147 CHVBK 20180317145540.0 cr unu---uuuuu 170323e20111201xx s 000 0 eng 10.1007/s00604-011-0672-6 doi (NATIONALLICENCE)springer-10.1007/s00604-011-0672-6 Determination of phenolic compounds in water samples by HPLC following ionic liquid dispersive liquid-liquid microextraction and cold-induced aggregation [Elektronische Daten] [Xinyu Jiang, Hui Zhang, Xiaoqing Chen] We report on the determination of bisphenol A and 2-naphthol in water samples using ionic liquid cold-induced aggregation dispersive liquid-liquid microextraction combined with HPLC. Parameters governing the extraction efficiency (disperser solvent, volume of extraction and disperser solvent, pH, temperature, extraction time) were optimized and resulted in enrichment factors of 112 for bisphenol A and of 186 for 2-naphthol. The calibration curve was linear with correlation coefficients of 0.9995 and 0.9998, respectively, in the concentration range from 1.5 to 200ngmL−1. The relative standard deviations are 2.3% and 4.1% (for n = 5), the limits of detection are 0.58 and 0.86ngmL−1, and relative recoveries in tap, lake and river water samples range between 100.1 and 108.1%, 99.4 and 106.2%, and 97.1 and 103.8%, respectively. Figure IL-CIA-DLLME has a high enrichment factor (112, 186), acceptable relative recovery (97.1%-108.1%), good repeatability (2.3%, 4.1%) and a wide linear range(1.5-200ngmL−1 ) for the determination of bisphenol A and 2-naphthol. Springer-Verlag, 2011 Bisphenol A nationallicence 2-naphthol nationallicence Ionic liquid nationallicence Cold-induced aggregation dispersive liquid-liquid microextraction nationallicence High performance liquid chromatography nationallicence Jiang Xinyu School of Chemistry and Chemical Engineering, Central South University, 410083, Changsha, China aut Zhang Hui School of Chemistry and Chemical Engineering, Central South University, 410083, Changsha, China aut Chen Xiaoqing School of Chemistry and Chemical Engineering, Central South University, 410083, Changsha, China aut Microchimica Acta Springer Vienna 175/3-4(2011-12-01), 341-346 0026-3672 175:3-4<341 2011 175 604 https://doi.org/10.1007/s00604-011-0672-6 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s00604-011-0672-6 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Jiang Xinyu School of Chemistry and Chemical Engineering, Central South University, 410083, Changsha, China aut NATIONALLICENCE 700 1- Zhang Hui School of Chemistry and Chemical Engineering, Central South University, 410083, Changsha, China aut NATIONALLICENCE 700 1- Chen Xiaoqing School of Chemistry and Chemical Engineering, Central South University, 410083, Changsha, China aut NATIONALLICENCE 773 0- Microchimica Acta Springer Vienna 175/3-4(2011-12-01), 341-346 0026-3672 175:3-4<341 2011 175 604 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer