title: Gas chromatography/electron capture negative-ion mass spectrometry at the zeptomole level.
authors.affiliation: Department of Pharmaceutical Sciences, College of Pharmacy and Allied Health Professions, Northeastern University, Boston, Massachusetts 02115.
authors.forename: S
authors.initials: S
authors.lastname: Abdel-Baky
authors.forename: R W
authors.initials: RW
authors.lastname: Giese
mesh_terms: D004563:Electrochemistry; D008401:Gas Chromatography-Mass Spectrometry / Q000295:instrumentation*