Di Tullio, Valeria NMR depth profiles as a non-invasive analytical tool to probe the penetration depth of hydrophobic treatments and inhomogeneities in treated porous stones. [electronic resource] - Analytical and bioanalytical chemistry Jul 2011 - 3151-64 p. digital Publication Type: Journal Article ISSN: 1618-2650 Standard No.: 10.1007/s00216-011-4968-5 doi