https://www.selleckchem.com/pr....oducts/Gefitinib.htm
The second approach also involved a new method to measure surface energy of mannitol powder based on measurements using Finite Dilution Inverse Gas Chromatography (FD-IGC). The surface energies of the mannitol powder were measured at high temperature (35 °C) and at different range of relative humidities. In spite of the fundamentally different approaches to the two ways of inferring inter-particles forces, these forces came out within less than 1.51 in magnitude. The Rumpf approach from bulk behaviour data obviously reflected the meas