Spectra of the metastable ions on steroid sapogenins and their dihydro derivatives

Autor:	G. V. Fridlyanskii, Ya. V. Rashkes, Yu. M. Mil'grom, B. M. Voronin
Rok vydání:	1991
Předmět:	Relative intensity Chemistry medicine.medical_treatment Analytical chemistry Plant Science General Chemistry Sapogenin General Biochemistry Genetics and Molecular Biology Spectral line Ion Steroid Crystallography Fragmentation (mass spectrometry) Metastability Mass spectrum medicine
Zdroj:	Chemistry of Natural Compounds. 26:412-420
ISSN:	1573-8388 0009-3130
DOI:	10.1007/bf00598994
Popis:	Characteristic distinguishing features of the mass spectra of steroid sapogenins of the spirostan series and their dihydroderivatives are considered. The MD and B/E = const spectra of all the key ions have been studied. It has been established that the relative intensities of the metastable peaks obtained by the two methods have close values. The orders of these magnitudes are the same for monotypical fragmentation processes. The correlation between the parameters of the spectra is disturbed if a daughter of one has a number of alternative formation pathways. On the whole, the linked-scanning spectra are characteristic to the extent that they contain metastable peaks of analogous transitions possessing close parameters.
Databáze:	OpenAIRE
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