title: Gas chromatographic assay at nanogram levels: (halogenomethyl)-dimethylsilyl steroid ethers.
mesh_terms: D000731:Androstanes / Q000032:analysis*; D000738:Androsterone / Q000032:analysis; D002849:Chromatography, Gas; D003687:Dehydroepiandrosterone / Q000032:analysis; D004958:Estradiol / Q000032:analysis*; D004987:Ethers / Q000032:analysis; D008832:Microchemistry; D012825:Silicon; D013739:Testosterone / Q000032:analysis
chemical_list: D000731:Androstanes; D004987:Ethers; D013739:Testosterone; D003687:Dehydroepiandrosterone; D004958:Estradiol; D000738:Androsterone; D012825:Silicon