Abstract
Supercritical fluid extraction (SFE) has long been investigated as an approach to extracting selected components from bulk samples (e.g. the classic extraction of caffeine from coffee) for a process engineering tool. In contrast, the application of SFE for the preparation of samples in the analytical laboratory has been receiving serious attention for only a few years. While process-scale SFE has generally been concerned with separating high concentration components from large quantities of a bulk matrix to increase their commercial value (or, e.g. to remove objectionable components as in the application of SFE to clean up contaminated soils), analytical-scale SFE is concerned with extracting analytes of interest from a bulk matrix as a sample preparation step prior to their determination by other analytical methods including (but not limited to) chromatographic, spectrometric, radiochemical and gravimetric techniques.
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Hawthorne, S.B. (1993). Methodology for off-line supercritical fluid extraction. In: Westwood, S.A. (eds) Supercritical Fluid Extraction and its Use in Chromatographic Sample Preparation. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-2164-4_2
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DOI: https://doi.org/10.1007/978-94-011-2164-4_2
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