title: Determination of 3 beta-hydroxysterols by the cysteine-sulfuric acid reaction.
mesh_terms: D001646:Bile / Q000032:analysis; D002784:Cholesterol / Q000032:analysis*; D003124:Colorimetry; D003545:Cysteine; D004071:Digitalis Glycosides; D007202:Indicators and Reagents; D008099:Liver / Q000032:analysis; D008722:Methods; D012503:Saponins; D013053:Spectrophotometry; D013150:Spirostans; D013261:Sterols / Q000032:analysis*; D013464:Sulfuric Acids
chemical_list: D004071:Digitalis Glycosides; D007202:Indicators and Reagents; D012503:Saponins; D013150:Spirostans; D013261:Sterols; D013464:Sulfuric Acids; D002784:Cholesterol; D003545:Cysteine