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Current use of pressurised liquid extraction and subcritical water extraction in environmental analysis

AuthorsRamos, Lourdes ; Kristenson, E. Maria; Brinkman, U. A. Th.
Pressurised liquid extraction
Subcritical water extraction
Environmental analysis
Issue Date2002
CitationJournal of Chromatography A 975(1): 3-29 (2002)
AbstractThis review updates our knowledge about pressurised liquid extraction (PLE) and subcritical water extraction (SWE), two sample preparation techniques which are increasingly used for the extraction of moderately and non-volatile organic pollutants from a variety of solid and semi-solid environmental matrices. Parameters influencing the extraction yield and selectivity are discussed. The results deriving from the analysis of several different classes of compounds in a variety of matrices are compared with a reference method, e.g., Soxhlet extraction. PLE and SWE are both promising techniques due to the short extraction times and low solvent consumption. In addition, SWE offers a wide range of polarities by changing the temperature and can easily provide class-selective extraction by temperature programming and/or the addition of modifier(s). This indicates that, even though many applications have already been reported, more can be expected.
Publisher version (URL)https://doi.org/10.1016/S0021-9673(02)01336-5
Appears in Collections:(IQOG) Artículos
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