title: The determination of steroids with and without natural electrophores by gas chromatography and electron-capture detection.
abstract: The response of the electron-capture detector to organic compounds is poorly defined, and the steroids are no exception to this observation. For those steroids which are naturally electron-capturing, the structures of the electrophores will be defined. Other steroids can be made electron-capturing by the formation of appropriate derivatives. Some new or infrequently used reagents for this purpose (flophemesyl ethers, t-bulflophemesyl ethers, pentafluorophenylhydrazone derivatives and halogen-substituted aromatic boronic acids) are described.
mesh_terms: D000818:Animals; D002849:Chromatography, Gas / Q000379:methods; D004440:Ecdysone / Q000032:analysis; D005466:Fluorocarbons; D006801:Humans; D007202:Indicators and Reagents; D008552:Melengestrol Acetate / Q000032:analysis; D012825:Silicon; D013256:Steroids / Q000032:analysis*; D013329:Structure-Activity Relationship
chemical_list: D005466:Fluorocarbons; D007202:Indicators and Reagents; D013256:Steroids; C010157:flophemesyl; D004440:Ecdysone; D008552:Melengestrol Acetate; D012825:Silicon