@misc{indiciaeab50add845e6,
  title = {On-line solid phase extraction with polyurethane foam: trace level spectrophotometric determination of iron in natural waters and biological materials.},
  author = {Ricardo J Cassella},
  year = {2002},
  doi = {10.1039/b204700d},
  url = {https://pubmed.ncbi.nlm.nih.gov/12195994/},
  note = {Source identifier: 12195994}
}