Accelerated solvent extraction explained

Accelerated solvent extraction
Acronym:ASE
Manufacturers:Thermo Fisher Scientific
Related:Solid phase extraction

Accelerated solvent extraction (ASE), also known as pressurized solvent extraction (PSE), is a method for extracting various chemicals from a complex solid or semisolid sample matrix. The process uses high temperature and pressure, which results in the extraction taking less time and requiring less solvent, and possibly also giving better analyte recovery, than traditional methods that use less extreme conditions.[1] [2] The elevated temperature is employed to increase extraction efficiency of the analyte of interest and the elevated pressure is used to keep the solvent in a liquid state as the temperature is increased above its boiling point.[1] An automated system for the process was developed by Dionex,[3] a company owned by Thermo Fisher Scientific.[4]

Method

The extraction cell is filled with the solid sample to be examined and placed in a temperature-controllable oven. After adding the solvent, the cell is heated at constant pressure (adjustable between 0.3 and 20 MPa) up to a maximum temperature of 200°C and kept at constant conditions for a while so that equilibrium can be established. The extract is then transferred to a sample tube. A sample often goes through several extraction cycles. Finally, the extraction cell is rinsed with solvent, the rinsing valve is opened and the cell and all lines are rinsed with nitrogen and the apparatus is prepared for further extractions.[5]

Applications

Accelerated solvent extraction has found many applications in the food industry, including in:

See also

Notes and References

  1. Accelerated Solvent Extraction: A Technique for Sample Preparation . Bruce E. . Richter . Brian A. . Jones . John L. . Ezzell . Nathan L. . Porter . Nebojsa . Avdalovic . Chris . Pohl . Anal. Chem. . 1996 . 68 . 6 . 1033–1039 . 10.1021/ac9508199 .
  2. Web site: Accelerated Solvent Extraction: Sample Preparation for Determination of Brominated Flame Retardants . December 2, 2007 . B.J. . Murphy . R.E. . Carlson . J.H. . Peterson . Bruce E. . Richter . 2016-05-09 .
  3. Web site: Accelerated Solvent Extraction - Dionex Solvent Extractors . analytica-world.com . 11 September 2020.
  4. Web site: [//www.thermofisher.com/us/en/home/industrial/chromatography/chromatography-sample-preparation/automated-sample-preparation/accelerated-solvent-extraction-ase.html Accelerated Solvent Extraction (ASE) - US ]. Thermo Fisher Scientific . 25 February 2019 . 11 September 2020.
  5. Book: Instrumentelle Analytik und Bioanalytik . Präanalytische Methoden . Springer-Lehrbuch . 2008 . Springer Berlin Heidelberg . Berlin, Heidelberg . 978-3-540-73803-9 . 0937-7433 . 10.1007/978-3-540-73804-6_3 . 57–90. de.
  6. Gallagher . P. A. . Shoemaker . J. A. . Wei . Xinyi . Brockhoff-Schwegel . C. A. . Creed . J. T. . Extraction and detection of arsenicals in seaweed via accelerated solvent extraction with ion chromatographic separation and ICP-MS detection . Fresenius' Journal of Analytical Chemistry . Springer Science and Business Media LLC . 369 . 1 . 8 January 2001 . 0937-0633 . 10.1007/s002160000585 . 71–80. 11210234 . 46609876 .
  7. Kellogg . Joshua J. . Wallace . Emily D. . Graf . Tyler N. . Oberlies . Nicholas H. . Cech . Nadja B. . Conventional and accelerated-solvent extractions of green tea (camellia sinensis) for metabolomics-based chemometrics . Journal of Pharmaceutical and Biomedical Analysis . Elsevier BV . 145 . 2017 . 0731-7085 . 10.1016/j.jpba.2017.07.027 . 604–610. 28787673 . 5804813 .
  8. Cicchetti . Esmeralda . Chaintreau . Alain . Comparison of extraction techniques and modeling of accelerated solvent extraction for the authentication of natural vanilla flavors . Journal of Separation Science . Wiley . 32 . 11 . 2009 . 1615-9306 . 10.1002/jssc.200800650 . 1957–1964. 19425014 .
  9. Shen . Jinchao . Shao . Xueguang . A comparison of accelerated solvent extraction, Soxhlet extraction, and ultrasonic-assisted extraction for analysis of terpenoids and sterols in tobacco . Analytical and Bioanalytical Chemistry . Springer Science and Business Media LLC . 383 . 6 . 18 October 2005 . 1618-2642 . 10.1007/s00216-005-0078-6 . 1003–1008. 16231136 . 8169502 .

This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Accelerated solvent extraction".

Except where otherwise indicated, Everything.Explained.Today is © Copyright 2009-2024, A B Cryer, All Rights Reserved. Cookie policy.