TY  - RPRT
TI  - Methods of analysis by the U.S. Geological Survey National Water Quality Laboratory-Determination of pesticides in water by Carbopak-B solid-phase extraction and high-preformance liquid chromatography
AU  - Stephen L. Werner
AU  - Mark R. Burkhardt
AU  - Sabrina N. DeRusseau
PY  - 1996
DO  - 10.3133/ofr96216
UR  - https://pubs.usgs.gov/publication/ofr96216
ID  - ofr96216
ER  -