title: Sensitive method for determination of ethinyl estradiol in presence of norethindrone.
abstract: A sensitive spectrophotofluorometric procedure for the determination of microamounts of ethinyl estradiol is described. The method is useful for the determination of ethinyl estradiol in the presence of norethindrome and common tablet excipients, especially in dissolution media.
mesh_terms: D004997:Ethinyl Estradiol / Q000032:analysis*; D005079:Excipients; D009640:Norethindrone; D011208:Powders / Q000032:analysis; D012995:Solubility; D013050:Spectrometry, Fluorescence / Q000379:methods; D013607:Tablets / Q000032:analysis
chemical_list: D005079:Excipients; D011208:Powders; D013607:Tablets; D004997:Ethinyl Estradiol; D009640:Norethindrone