Argentometric methods for the determination of acetylenic steroids, ethinyloestradiol and norethisterone.
D004997:Ethinyl Estradiol / Q000032:analysis*; D009640:Norethindrone / Q000032:analysis*; D011199:Potentiometry / Q000379:methods; D013607:Tablets / Q000032:analysis
D013607:Tablets; D004997:Ethinyl Estradiol; D009640:Norethindrone