title: Isotopic dilution assay for biotin: use of [14C]biotin.
mesh_terms: D001360:Avidin; D001710:Biotin / Q000032:analysis*; D002250:Carbon Radioisotopes; D007553:Isotope Labeling / Q000379:methods; D011485:Protein Binding
chemical_list: D002250:Carbon Radioisotopes; D001360:Avidin; D001710:Biotin