ISSN:
0030-493X
Keywords:
Chemistry
;
Analytical Chemistry and Spectroscopy
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Notes:
Results from investigations of the 10.5 eV photoionization of infrared laser-desorbed, jet-entrained peptides are presented. The instrumental set-up for vacuum ultraviolet generation and the coupling to a reflectron-time-of-flight mass spectrometer is described. Single-photon ionization makes possible the investigation of molecules without any chromophoric group. Examples of the application of this ionization method to di- and tripeptides containing glycine, alanine, leucine and proline are shown. A comparison between single- and multi-photon ionization of tryptophan and tryptophar-containing peptides up to four amino acids is made and discussed in terms of soft ionization and generation of fragment ions.
Additional Material:
8 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/oms.1210270418
