Their cross-interactions with solvents are discussed. Species List: A list of all of the chemical species in this. No colligative behavior of solutions reflects individual properties of the solutes. Citation Guide: A Guide to the proper citation of data from this site. This paper discusses the influence of the modifier on the colligative properties of the principal mobile phase, which may define the situation in the total mobile phase in a chromatography column or in parts of a column under SFC. For example, methanol is added as a cosolvent/modifier to SCCO2 for the extraction/separation of polar compounds. Supercritical fluid chromatography (SFC) and supercritical fluid extraction are generally carried out with neat supercritical carbon dioxide (SCCO2) or with SCCO2 containing modifiers (or cosolvents), especially for strongly polar compounds. International Journal of Analytical Mass Spectrometry and Chromatography,ĪBSTRACT: It is important to understand the mechanism and implications of different modifiers on analytical and preparative processes under chromatography with supercritical fluids (SFs) and under extraction with SFs. Supercritical Fluid (SF), Supercritical Fluid Chromatography (SFC), Supercritical Fluid Extraction (SFE), Modifiers, Influence of Modifiers, Colligative Properties, Thermodynamics-Based Evaluation of Binary Mixtures, Phase Equilibria Influence of Modifiers on Supercritical Fluid Chromatography (SFC) and Supercritical Fluid Extraction (SFE), Part IĪUTHORS: Ilia Brondz, Boris Sedunov, Nagarajan Sivaraman NIST Chemistry WebBook (2016) Thermophysical Properties of Fluid Systems.
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