title: Trace analysis by gas chromatography/mass spectrometry (GC/MS) using a tandem double-focusing/quadrupole instrument.
abstract: Analysis for oestradiol bis-tert-butyldimethylsilyl ether by gas chromatography/mass spectrometry (GC/MS) with selected reaction monitoring ([M]+.----[M-C4H9]+) using a tandem double-focusing/quadrupole instrument gave a detection limit below 10 pg. During analyses of a plasma extract, the selectivity of detection was superior to conventional selected ion monitoring. A parent ion resolution of 5000 was used to eliminate detection of all components but the chosen analyte.
authors.forename: S J
authors.initials: SJ
authors.lastname: Gaskell
authors.forename: C J
authors.initials: CJ
authors.lastname: Porter
authors.forename: B N
authors.initials: BN
authors.lastname: Green
mesh_terms: D004958:Estradiol / Q000097:blood; D008401:Gas Chromatography-Mass Spectrometry / Q000295:instrumentation*
chemical_list: D004958:Estradiol