Title: Electromagnetically vibrated Solid-Phase Microextraction for the analysis of organic compounds

Authors: Jin Chul Joo, Kenneth F. Reardon, Charles D. Shackelford, Joseph F. Wilmetti

Addresses: Korea Institute of Construction Technology, 2311 Daehwa-Dong, Ilsanseo-Gu, Goyang-Si, Gyeonggi-Do, 411-712, Republic of Korea. ' Department of Chemical and Biological Engineering, Colorado State University, 1370 Campus Delivery, Fort Collins, CO 80523-1370, USA. ' Department of Civil and Environmental Engineering, Colorado State University, 1372 Campus Delivery, Fort Collins, CO 80523-1372, USA. ' Department of Civil and Environmental Engineering, Colorado State University, 1372 Campus Delivery, Fort Collins, CO 80523-1372, USA

Abstract: A newly developed electromagnetically vibrated Solid-Phase Microextraction (SPME) device for extracting 1, 4-dichlorobenzene and toluene from aqueous matrices was evaluated in terms of sorption equilibrium time, precision, and detection level relative to three other more conventional extraction techniques involving SPME, viz., static, magnetic stirring, and fibre insertion/retraction. Electromagnetic vibration at 420 cycles/s was found to be the most efficient extraction technique and also did not detrimentally impact the sustainability of the extracting performance of the SPME fibre. Therefore, electromagnetically vibrated SPME may be a more powerful tool for rapid sampling and solvent-free sample preparation relative to other more conventional extraction techniques used with SPME.

Keywords: detection level; electromagnetic vibration; extraction techniques; organic compounds; precision; SPME; solid-phase microextraction; sorption equilibrium time; toluene; dichlorobenzene; adsorption; aqueous matrices.

DOI: 10.1504/IJETM.2010.031542

International Journal of Environmental Technology and Management, 2010 Vol.12 No.2/3/4, pp.393 - 406

Published online: 10 Feb 2010 *

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