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Dispersive liquid-liquid microextraction of phenolic compounds using solidified floating organic droplets, and their determination by HPLC

Dispersive liquid-liquid microextraction of phenolic compounds using solidified floating organic... We have developed a simple and efficient method for dispersive liquid-liquid microextraction of 4-nitrophenol, 2-naphthol and bisphenol A in real water samples. It is making use of solidified floating organic droplets of 1-dodecanol which has low density and a proper melting point. The type and volume of extraction solvent and dispersive solvent, the effect of salts, pH value and extraction time were optimized and resulted in enrichment factors of 84 for 4-nitrophenol, 123 for 2-naphthol, and 97 for bisphenol A. The limits of detection by HPLC are 1.50, 0.10 and 1.02 ng · mL−1, respectively. Excellent linearity is observed in the concentration range from 10 to 800 ng · mL−1, with coefficients of correlation ranging from 0.9988 to 0.9999. The relative standard deviations (for n = 5) are from 3.2 to 5.3 %, and relative recoveries for the three phenols in tap, river and spring water range from 85.0 to 105.0 %, 98.3 to 110.0 %, and 98.6 to 109.0 %, respectively. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Microchimica Acta Springer Journals

Dispersive liquid-liquid microextraction of phenolic compounds using solidified floating organic droplets, and their determination by HPLC

Hou, Fang; Deng, Ting; Jiang, Xinyu
Microchimica Acta , Volume 180 (6) – Jan 6, 2013
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References (34)

Publisher
Springer Journals
Copyright
Copyright © 2013 by Springer-Verlag Wien
Subject
Chemistry; Nanochemistry; Nanotechnology; Characterization and Evaluation of Materials; Analytical Chemistry; Microengineering
ISSN
0026-3672
eISSN
1436-5073
DOI
10.1007/s00604-012-0937-8
Publisher site
See Article on Publisher Site

Abstract

We have developed a simple and efficient method for dispersive liquid-liquid microextraction of 4-nitrophenol, 2-naphthol and bisphenol A in real water samples. It is making use of solidified floating organic droplets of 1-dodecanol which has low density and a proper melting point. The type and volume of extraction solvent and dispersive solvent, the effect of salts, pH value and extraction time were optimized and resulted in enrichment factors of 84 for 4-nitrophenol, 123 for 2-naphthol, and 97 for bisphenol A. The limits of detection by HPLC are 1.50, 0.10 and 1.02 ng · mL−1, respectively. Excellent linearity is observed in the concentration range from 10 to 800 ng · mL−1, with coefficients of correlation ranging from 0.9988 to 0.9999. The relative standard deviations (for n = 5) are from 3.2 to 5.3 %, and relative recoveries for the three phenols in tap, river and spring water range from 85.0 to 105.0 %, 98.3 to 110.0 %, and 98.6 to 109.0 %, respectively.

Journal

Microchimica Acta – Springer Journals

Published: Jan 6, 2013

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