title: Serum theophylline determination by fluorescence polarization immunoassay utilizing an umbelliferone derivative as a fluorescent label.
mesh_terms: D002851:Chromatography, High Pressure Liquid; D005454:Fluorescence Polarization; D005456:Fluorescent Dyes; D006801:Humans; D007118:Immunoassay / Q000379:methods; D013806:Theophylline / Q000097:blood*; D014468:Umbelliferones
chemical_list: D005456:Fluorescent Dyes; D014468:Umbelliferones; C033754:7-hydroxycoumarin-3-(N-(2-hydroxyethyl))carboxamide; D013806:Theophylline