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