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Relative intensities of metastable peaks measured with B / E linked scan and metastable defocusing techniques
Author(s) -
Rashkes Yakov W.,
Sirotenko Elena G.,
Milgrom Yurij M.
Publication year - 1991
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.1210260910
Subject(s) - metastability , ion , table (database) , chemistry , molecule , position (finance) , order (exchange) , analytical chemistry (journal) , atomic physics , physics , chromatography , organic chemistry , finance , computer science , economics , data mining
The ratios ( A ) of metas table‐ and parent‐ion peak heights measured by me testable defocusing and the B / E inked scan technique have the same order of magnitude. This was established for the M + → [M ‐ 15] + and M + → [M − OR 1 ] + (R 1 = H, Me, Ac) transitions in the mass spectra of diterpene alkaloids with a licoctonine skeleton. The A values were demonstrated to depend on the position of the eliminated group in the parent molecule. The A values can also be employed as a criterion for the identification of daughter‐ion reaction configurations.