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Energy‐resolved collision‐induced dissociation atmospheric pressure chemical ionization mass spectrometry of constitutional and stereo steroid isomers
Author(s) -
Sjöberg Per J. R.,
Markides Karin E.
Publication year - 1998
Publication title -
journal of mass spectrometry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.475
H-Index - 121
eISSN - 1096-9888
pISSN - 1076-5174
DOI - 10.1002/(sici)1096-9888(199809)33:9<872::aid-jms699>3.0.co;2-w
Subject(s) - chemistry , collision induced dissociation , mass spectrometry , dissociation (chemistry) , triple quadrupole mass spectrometer , tandem mass spectrometry , chemical ionization , atmospheric pressure chemical ionization , ionization , atmospheric pressure , analytical chemistry (journal) , mass spectrum , ion , structural isomer , tandem , selected reaction monitoring , chromatography , organic chemistry , oceanography , geology , materials science , composite material
Energy‐resolved mass spectra were recorded by controlled up‐front collision‐induced dissociation (CID) or conventional CID tandem mass spectrometry. Differentiation between constitutional isomers and stereoisomers of hydroxysteroids was studied using atmospheric pressure chemical ionization interfaced to a triple quadrupole mass spectrometer. Relative abundances of fragment ions from mainly water loss were used. © 1998 John Wiley & Sons, Ltd.