17O 3Q-MAS NMR characterization of a sodium aluminoborosilicate glass and its alteration gel

A quantitative approach was applied to the 3Q-MAS spectra of 17O to characterize a four-oxide glass composition and the alteration film that formed on its surface during aqueous alteration. The intensity of the oxide sites was corrected according to the quadrupolar interaction based on the efficiency of the coherence transfers induced by a 3Q-MAS sequence The restructuring of a boron-depleted aluminosilicate gel was clearly visible during alteration by H217O.