Hydrogen depth profiling by p-p scattering in nominally anhydrous minerals

Nominally anhydrous minerals, both synthesized and of natural occurrence, with hydrogen concentrations from 10 to 100 ppm have been analysed. Hydrous minerals, as well as Mylar foils were used as standards. Depth profiles show that intrinsic hydrogen can be distinguished from surface contaminations, e.g. water adsorbed on the sample surfaces.