TY - RPRT TI - Accurate mass analysis of ethanesulfonic acid degradates of acetochlor and alachlor using high-performance liquid chromatography and time-of-flight mass spectrometry AU - E.M. Thurman AU - Imma Ferrer AU - R. Parry PY - 2002 DO - 10.1016/s0021-9673(01)01470-4 UR - https://pubs.usgs.gov/publication/70182113 ID - 70182113 ER -