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A modular approach to pressurized liquid extraction with in-cell clean-up PDF Print E-mail
Title: A modular approach to pressurized liquid extraction with in-cell clean-up. LC GC Europe, 23 (6), 292-301, 2010 (Cover story). Haglund P, Spinnel E. A modular approach to pressurized liquid extraction with in-cell clean-up. LC GC Asia Pacific, 13 (2), 6-12, 2010 (Cover story). Authors Haglund P, Spinnel E., Umeå Unversity
Abstract: A new concept for extraction of solid samples has been developed. The popular PLE technique has been modified so that the extraction cell can be divided, thereby greatly increasing its flexibility and versatility. The system utilizes simple adaptors to couple commercially available extraction cells, which may be loaded with either sample or adsorbent(s). These segmented extraction cells make it possible to selectively retain analytes or matrix; thereby achieving simultaneous extraction and clean-up or fractionation. The ultimate aim is to perform simultaneous extraction and clean-up and obtain a purified extract that is ready for instrumental analysis, all in line with current trends in analytical chemistry to automate and streamline the analytical procedures, thereby greatly reducing the analysis costs, solvent consumption, manual labor and increasing the quality of analysis. Selected modes of operations are presented and a few recent environmental applications of modular PLE are reviewed.