TY - RPRT TI - Structural analysis of geochemical samples by solid-state nuclear magnetic resonance spectrometry. Role of paramagnetic material AU - A. M. Vassallo AU - M. A. Wilson AU - P. J. Collin AU - J. M. Oades AU - A. G. Waters AU - Ronald L. Malcolm PY - 2002 DO - 10.1021/ac00131a005 UR - https://pubs.usgs.gov/publication/70014883 ID - 70014883 ER -