Abstract
A novel inorganic synthetic clay material (SC) has been evaluated as the stationary phase in packed-column, supercritical fluid chromatography (SFC). The molecular recognition capability of the SC stationary phase in SFC for polycyclic aromatic hydrocarbons has been evaluated using carbon dioxide and carbon dioxide modified with methanol as the mobile phase. This recognition derives from the layer structure of the SC material which acts as a slit to distinguish non-planar solutes from the molecular-molecular interaction between solute and stationary phase and leads to smaller retention for non-planar solutes. The recognition capability is also dependent on the SFC conditions such as column pressure and column temperature.
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