TY  - RPRT
TI  - Routine determination of sulfonylurea, imidazolinone, and sulfonamide herbicides at nanogram-per-liter concentrations by solid-phase extraction and liquid chromatography/mass spectrometry
AU  - E. T. Furlong
AU  - M.R. Burkhardt
AU  - Paul M. Gates
AU  - S.L. Werner
AU  - W.A. Battaglin
PY  - 2000
DO  - 10.1016/s0048-9697(99)00537-9
UR  - https://pubs.usgs.gov/publication/70022730
ID  - 70022730
ER  -