THE NEGATIVE-ION MASS-SPECTRA OF (M-H)(-) IONS FROM PHENYLTHIOHYDANTOIN DERIVATIVES OF AMINO-ACIDS

Authors
RAMSAY SL WAUGH RJ BLUMENTHAL T BOWIE JH
Citation
Sl. Ramsay et al., THE NEGATIVE-ION MASS-SPECTRA OF (M-H)(-) IONS FROM PHENYLTHIOHYDANTOIN DERIVATIVES OF AMINO-ACIDS, European mass spectrometry, 1(4), 1995, pp. 381-387
Citations number
24
Categorie Soggetti
Spectroscopy,"Physics, Atomic, Molecular & Chemical
Journal title
European mass spectrometry → ACNP
ISSN journal
13561049
Volume
1
Issue
4
Year of publication
1995
Pages
381 - 387
Database
ISI
SICI code
1356-1049(1995)1:4<381:TNMO(I>2.0.ZU;2-J
Abstract
The mass spectra of (M - H)(-) ions of phenylthiohydantoin (PTH) amino acids show characteristic fragmentations through the side chain (the alpha-side chain of the original amino acid) which may be used to iden tify each of the common amino acids. Some of these fragmentations are Leu (C3H8), Ile (CH4, C2H6), Phe (PhH), Tyr (CH2=C6H4=O), Trp (CH2=C8H 5N), Ser (CH2O), Thr (MeCHO) and Met (MeSH). The formulae in parenthes es represent the neutrals lost.