Selerity Series 4000 Supercritical Fluid Chromatograph

Selerity Series 4000
Supercritical Fluid Chromatograph

The Selerity Series 4000 Supercritical Fluid Chromatograph is rugged, reliable, reproducible, and easy to use. Because it uses carbon dioxide as the main mobile phase supercritical fluid chromatography (SFC) is recognized as a “green” technology. SFC applications have environmental and cost advantages compared to applications that require solvent mobile phases (HPLC) or helium (GC).

What Is Supercritical Fluid Chromatography?

SFC ia a chromatographic technique in which the mobile phase is neither a gas nor a liquid, but has properties of both: formally a supercritical fluid. At pressures and temperatures above its critical point, a gas becomes a supercritical fluid and it possesses densities and other properties that are intermediate between those of gases and liquids.

When Should You Use Supercritical Fluid Chromatography?

SFC offers distinct advantages over gas chromatography (GC) and liquid chromatography (HPLC) when:

  • Compounds are not volatile enough for GC without derivatization
  • Compounds do not have chromophores suitable for UV detection under HPLC conditions
  • Compounds are unstable at typical GC temperatures
  • Universal detectors such as the flame ionization detector (FID) are desired that are not available for HPLC

How Can You Apply Supercritical Fluid Chromatography in Your Laboratory?

SFC finds applications essentially wherever chromatographic techniques are used. You can now complete your laboratory with the Series 4000. Just a few of the applications possible with SFC Include:

ASTM D5186 SFC Method

ASTM D5186 Testing Method
Click to enlarge


  • ASTM D5186 testing method for aromatics and polyaromatics in diesel and jet fuels
  • ASTM D6550 testing method for olefins in gasoline
  • Heavy petroleum compounds and residues


  • Thermally unstable compounds, e.g., isocyanates
  • α-acids


  • Thermally unstable compounds
  • Polymers such as PEG’s and polyalcohols


  • Fatty acids
  • Natural products
  • Surfactants (non-ionic)


  • Light polymers (<5,000 to at most 10,000 amu)
  • Polymer additives (especially where GC or HPLC require derivatization)

Electronic Industry

  • Polyfluorocarbons

Selerity Supercritical Fluid Chromatograph

Superior Technology

Envantage is pleased to partner with Selerity Technologies in bringing the Selerity Series 4000 Supercritical Chromatograph to the petroleum, petrochemical, and related industries. Selerity Technologies is committed to technological leadership in the manufacture of SFC instrumentation. In addition to being an environmentally friendly “green” alternative, the Selerity 4000 offers superior features and functionality such as:

  • Fully integrated software that controls pump, oven, autosampler, and data acquisition package
  • Temperature-controlled pressure transducer for better reproducibility
  • 10 mL syringe pump for pulse-free pressure-controlled flow and minimal CO2 usage
  • Innovative column technology to suit all of your application requirements
  • Large capacity oven suitable for any column configuration
  • A secondary independent column heater to improve peak shape and decrease analysis times
  • Low dead volume injections and column switching with Secure–Fit ™ column connectors
  • Simplified split/splitless injection for capillary columns

Find out more about the Selerity Series 4000 Supercritical Chromatograph by downloading this brochure:


Contact Us and let’s start a discussion to see if the
Selerity Series 4000 Supercritical Chromatograph
is a good fit for your laboratory!