Photodissociation spectroscopy of trapped protonated tryptophan

We have coupled a quadrupole ion trap with a frequency doubled optical parametric oscillator laser. The photodissociation spectrum of the protonated tryptophan ion from 215 to 320 nm is reported. The yields of fragmentation on each mass channel as a function of the laser wavelength were obtained. We...

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Bibliographic Details
Published inThe Journal of chemical physics Vol. 122; no. 7; p. 074310
Main Authors Talbot, Francis O, Tabarin, Thibault, Antoine, Rodolphe, Broyer, Michel, Dugourd, Philippe
Format Journal Article
LanguageEnglish
Published United States 15.02.2005
Subjects
Gas Chromatography-Mass Spectrometry - instrumentation
Gas Chromatography-Mass Spectrometry - methods
Light
Protons
Spectrometry, Mass, Electrospray Ionization - instrumentation
Spectrometry, Mass, Electrospray Ionization - methods
Tryptophan - analysis
Tryptophan - chemistry
Tryptophan - radiation effects
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Summary:We have coupled a quadrupole ion trap with a frequency doubled optical parametric oscillator laser. The photodissociation spectrum of the protonated tryptophan ion from 215 to 320 nm is reported. The yields of fragmentation on each mass channel as a function of the laser wavelength were obtained. We also report experiments involving multiple stages of laser induced dissociation and discuss possible structures for the fragmentation products.
ISSN:0021-9606
1089-7690
DOI:10.1063/1.1850459