Inverse gas chromatographic determination of solubility parameters of excipients

Surface characterization of okra hydrocolloid extract by inverse gas chromatography (IGC)

“…At infinite dilution, where the probe-probe interactions can be considered to be negligible, the system being dominated by stationary phase-probe interactions [22]. Gases such as air [9,36] or methane [9,10,16,36,37] can be used as a non-retained marker. This serves the calculation of the column dead time.…”

“…This technique has been employed for the characterization of a variety of organic materials such as copolymers [10][11][12], polymer blends [13], hyperbranched polymers [14,15], pharmaceutical materials [16], powders [17,18], crude oils [19], nanomaterials [20], fibers [21], and some non-food carbohydrates [22,23].…”

Determination of the Solubility Parameter of Epoxidized Soybean Oil by Inverse Gas Chromatography

“…V 1 represents the molar volume of solvent; R and V 2 are the gas constant and the specific volume of the polymer, respectively, and P 1 0 (logP o 1 = A − B/(t + C)) is the saturated vapor pressure of the probe at the column temperature; here, t is the temperature ( • C) and A, B, and C are constants. [22,23] …”

Examination of Polystyrene by Inverse GC: Part 2. Above Glass Transition Temperature

“…The cohesive energy of a material is the energy which holds the molecules of a liquid together and corresponds to the energy of all interactions between molecules: dispersion or London forces, polar interactions (dipoldipol and dipol-induced dipol) and specific interaction (hydrogen bonding) [33].…”