title: Fluorometric determination of nitrite with 4-hydroxycoumarin.
mesh_terms: D015110:4-Hydroxycoumarins; D006801:Humans; D009573:Nitrites / Q000032:analysis*; D012463:Saliva / Q000032:analysis; D013050:Spectrometry, Fluorescence
chemical_list: D015110:4-Hydroxycoumarins; D009573:Nitrites