TY - RPRT TI - Use of field-applied quality control samples to monitor performance of a Goulden large-sample extractor/GC-MS method for pesticides in water AU - W.T. Foreman AU - Paul M. Gates AU - G.D. Foster AU - F. A. Rinella AU - S. W. McKenzie PY - 2006 DO - 10.1080/03067310008034145 UR - https://pubs.usgs.gov/publication/70023189 ID - 70023189 ER -