@article{226096,
  author = {Michael Nelson and Mary Bedner and Brian Lang and Blaza Toman and Katrice Lippa},
  title = {Metrological approaches to organic chemical purity: primary reference materials for vitamin D metabolites},
  year = {2015},
  number = {407},
  month = {2015-09-07},
  publisher = {Analytical and Bioanalytical Chemistry},
  doi = {https://doi.org/10.1007/s00216-015-9013-7},
  language = {en},
}