Correlation of Solvatochromic Effects with Retention in Supercritical Fluid Chromatography

摘要

The study of mobile phase intermolecular interactions is reported using the solvatochromic technique for supercritical fluid chromatography (SFC). The change in the solvation character of the cybotactic region of the selected solute probes was observed to be dependent on the density of the solvent. This change in solvation is compared with solute retention under similiar pressure and temperature conditions for capillary SFC. The major solute-solvent interactions with CO sub 2 seems to be from dipole-induced dipole interactions. 25 refs., 8 figs. (ERA citation 11:038472)