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Applied Separations Supercritical Fluid Extraction (SFE)

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Overview

Applied Separations Supercritical Fluid Extraction technologies
The company has 30 years experience in SCF technologies and offers a wide range of systems, from laboratory instruments to pilot plants to large scale production facilities.

The Applied Separations Spe-ed supercritical fluid (SCF) product line features:

  • Educational systems
  • Laboratory systems
  • Pilot scale process systems
  • Large scale production systems

Spe-ed Helix laboratory supercritical fluid process development systems
The Helix has been specially engineered by Applied Separations for maximum flexibility. The modular Helix is optimized, so the system can easily be modified for changing process development needs.

Applied Separations Spe-ed SFE-2 and Spe-ed SFE-4 analytical and research systems
The Spe-ed SFE-2 and the Spe-ed SFE-4 are, respectively, 2-vessel and  4-vessel simultaneous oven-based extraction systems.

Applied Separations Spe-ed SFE-15000 higher pressure oven-based extraction system
The system has been designed with special high pressure components to reliably provide rugged service, and increased solubility of many compounds.

Spe-ed SFE-Prime for supercritical fluids education
Spe-ed SFE-Prime is the only teaching tool for environmentally friendly supercritical fluids technologies.

Large scale SFE systems
Applied Separations offers custom pilot plant/small production and large scale production SFE systems.

Supercritical Fluid Extraction (SFE)
SFE uses supercritical CO2, instead of organic solvents such as hexane and methylene chloride, to extract chemical compounds from a solid matrix (sometimes also from liquids). Near the critical point the density of a SCF is extremely sensitive to minor changes in temperature and pressure. Since the solvating power of a SCF is directly related to its density, selective extraction of the analyte of interest can be achieved by making slight changes in temperature and pressure and exploiting the differential solubility of analytes in the SCF. On the other hand, due to the higher diffusion coefficients in supercritical fluids, SFE is faster than liquid extraction. SFE is also a more efficient extraction method since the lower surface tension of supercritical fluids allows penetration into small pores of the solid matrix which are not accessible to liquids.

Articles

Supercritical Fluid Extraction (SFE)
SFE uses supercritical CO2, instead of organic solvents such as hexane and methylene chloride, to extract chemical compounds from a solid matrix (sometimes also from liquids). Near the critical point the density of a SCF is extremely sensitive to minor changes in temperature and pressure. Since the solvating power of a SCF is directly related to its density, selective extraction of the analyte of interest can be achieved by making slight changes in temperature and pressure and exploiting the differential solubility of analytes in the SCF. On the other hand, due to the higher diffusion coefficients in supercritical fluids, SFE is faster than liquid extraction. SFE is also a more efficient extraction method since the lower surface tension of supercritical fluids allows penetration into small pores of the solid matrix which are not accessible to liquids.

Application notes

Extraction of PAHs from soil using supercritical fluids
The analytes in this application were naphthalene, acenaphthene, phenanthrene, anthracene and benzo(bk)flouranthene.

Extraction of total petroleum hydrocarbons (TPH) from soil using supercritical fluids
Date of creation: 
10 April 2018
Library code: 
11822
Extraction of drugs and other chemical residues from tissues using SPE trapping techniques
Date of creation: 
19 April 2018
Library code: 
11834
Extraction of β-agonists from bovine liver tissue
Date of creation: 
19 April 2018
Library code: 
11835
Extraction of sulfonamides from chicken liver using supercritical fluoroform (CHF3)
Date of creation: 
5 May 2018
Library code: 
11878
Determination of steroids in animal tissues by supercritical fluid extraction and inline trapping
Date of creation: 
16 May 2018
Library code: 
11953
Selective extraction of fatty acids and carotenoids from microalgae using supercritical carbon dioxide
Date of creation: 
16 May 2018
Library code: 
11951
Supercritical Fluid Extration of coffee beans
Date of creation: 
25 April 2017
Library code: 
10853
Supercritical Fluid Extraction of fats and oils in seeds
Date of creation: 
24 April 2017
Library code: 
10852
Determination of additives in rubber hose using Supercritical Fluid Extraction
Date of creation: 
22 April 2017
Library code: 
10848
Literature

Spe-ed Helix laboratory supercritical fluid process development systems
The Helix has been specially engineered by Applied Separations for maximum flexibility. The modular Helix is optimized, so the system can easily be modified for changing process development needs.

Applied Separations Spe-ed supercritical fluid (SCF) product line
Date of creation: 
4 November 2015
Library code: 
10388
Applied Separations Spe-ed SFE-2 and Spe-ed SFE-4 analytical and research systems
Date of creation: 
3 November 2015
Library code: 
10385
Applied Separations Spe-ed SFE-15000 higher pressure oven-based extraction system
Date of creation: 
3 November 2015
Library code: 
10386
Spe-ed SFE-Prime for supercritical fluids education
Date of creation: 
2 November 2015
Library code: 
10384
Applied Separations SFE pilot and production scale systems
Date of creation: 
4 November 2015
Library code: 
10389