@misc{indiciae0d23aa8a0ab3,
  title = {Quantitative paper chromatography, a simplified procedure.},
  author = {R J BLOCK},
  year = {1949},
  doi = {10.3181/00379727-72-17425},
  url = {https://pubmed.ncbi.nlm.nih.gov/15398305/},
  note = {Source identifier: 15398305}
}