TY - RPRT TI - Mass spectrometric identification of an azobenzene derivative produced by smectite-catalyzed conversion of 3-amino-4-hydroxyphenylarsonic acid AU - Robert L. Wershaw AU - David W. Rutherford AU - Colleen E. Rostad AU - John R. Garbarino AU - I. Ferrer AU - K. R. Kennedy AU - G.-M. Momplaisir AU - A. Grange PY - 2003 DO - 10.1016/s0039-9140(03)00032-8 UR - https://pubs.usgs.gov/publication/70025632 ID - 70025632 ER -