A simple laser vaporization source for thermally fragile molecules coupled to a supersonic expansion: application to the spectroscopy of tryptophan

被引:104
作者
Piuzzi, F [1 ]
Dimicoli, I [1 ]
Mons, M [1 ]
Tardivel, B [1 ]
Zhao, QC [1 ]
机构
[1] CEA, CEN Saclay, DRECAM, SPAM, F-91191 Gif Sur Yvette, France
关键词
D O I
10.1016/S0009-2614(00)00242-6
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
The mass resolved electronic spectrum of cold tryptophan molecules has been obtained using a novel desorption method as a vaporization source coupled with a supersonic expansion. This desorption device is characterized by its simplicity, stability suitable for spectroscopic studies and by a very low yield of fragmentation products. The unique performance of the desorption source is demonstrated by the possibility to measure hole-burning spectra of tryptophan by resonance enhanced two-photon ionization which confirms strongly the presence of only a small number of stable conformers for this species in its ground state. (C) 2000 Published by Elsevier Science B.V. All rights reserved.
引用
收藏
页码:282 / 288
页数:7
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