[Dissolution processes and surface changes. 3. Determination of the surface with the BET process].
Two methods are demonstrated for the determination of the surfaces of solid substances by the BET-method. Using a newly constructed apparatus substances with high specific surfaces can be determined by the two-point-method with a good precision. For the determination of pulverous drugs we used the one-point-method proposed by Haul and Dümbgen [2] improving it in calibration und practicability.
D002626:Chemistry, Pharmaceutical / Q000295:instrumentation; D011312:Pressure; D012995:Solubility; D013499:Surface Properties
Auflösungsprozesse und Oberflächenänderung. 3. Mitteilung: Oberflächenbestimmung durch das BET-Verfahren.