High- and low-energy collision experiments, by means of double-focusing and ion-trap mass spectrometers, respectively, performed on the M+. and [M-H2O]+. ions of 7-alpha- and 7-beta-hydroxycholesterol lead to a clear structural characterization of the two stereoisomers. In particular, the beta isomer shows peculiar fragmentation pathways due to interaction between the hydroxyl group in position 7-beta and the hydrogen atom on C(15).
Collisional Spectroscopy Approaches In the Characterization of 7-alpha-hydroxycholesterol and 7-beta-hydroxycholesterol
FAVRETTO, DONATA;
1991
Abstract
High- and low-energy collision experiments, by means of double-focusing and ion-trap mass spectrometers, respectively, performed on the M+. and [M-H2O]+. ions of 7-alpha- and 7-beta-hydroxycholesterol lead to a clear structural characterization of the two stereoisomers. In particular, the beta isomer shows peculiar fragmentation pathways due to interaction between the hydroxyl group in position 7-beta and the hydrogen atom on C(15).File in questo prodotto:
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