@misc{indiciaee4dc15ad68df,
  title = {Coupling solid-phase extraction and enzyme-linked immunosorbent assay for ultratrace determination of herbicides in pristine water},
  author = {D.S. Aga and E.M. Thurman},
  year = {2002},
  doi = {10.1021/ac00068a029},
  url = {https://pubs.usgs.gov/publication/70017464},
  note = {Source identifier: 70017464}
}