iCG Surface Energy Analyzer (iGC-SEA)

RAMCON iGC SEA

The iGC-SEA is based on Inverse Gas Chromatography (IGC) methodology and is a gas phase technique for characterising surface and bulk properties of solid materials. A cylindrical column is uniformly packed with the solid material of interest, typically a powder, fibre or film. A pulse of constant concentration of gas is then injected down the column at a fixed carrier gas flow rate, and the time taken for the pulse or concentration front to elute down the column is measured by a detector. A series of IGC measurements with different gas phase probe molecules then allows access to a wide range of hysico chemical properties of the solid sample, e.g. the dispersive component of the surface energy (γ^D_S) can be calculated from the retention times obtained from inverse gas chromatography measurements of a series of n-alkane probes injected at infinite dilution (concentration within the Henry region of the adsorption isotherm)

Contact person: Eva Otyepková (eva.otyepkova@upol.cz)