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Oxirane as a chemical ionization gas: Reactivity towards different classes of compounds
Author(s) -
Lange C.
Publication year - 1993
Publication title -
organic mass spectrometry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.475
H-Index - 121
eISSN - 1096-9888
pISSN - 0030-493X
DOI - 10.1002/oms.1210281102
Subject(s) - chemistry , adduct , protonation , ion , heteroatom , reactivity (psychology) , hydride , chemical ionization , molecule , ionization , selectivity , polyatomic ion , photochemistry , medicinal chemistry , organic chemistry , catalysis , hydrogen , medicine , ring (chemistry) , alternative medicine , pathology
Oxirane chemical ionization (CI) gives numerous ions, including C 2 H 3 O + and C 2 H 5 O + . These ions react with organic molecules through various specific ion–molecule reactions such as hydride abstraction, protonation, additions or cycloadditions. Oxirane CI allows discrimination between unsaturated compounds with [M + 43] + and [M + 57] + adduct ions and heteroatom functions with [M + 45] + adduct ion. All are diagnostic ions. Oxirane CI permits selectivity during the ionization process of a mixture and discrimination of isomers.