Comprehensive characterization of the photodissociation pathways of protonated tryptophan
Comprehensive characterization of the photodissociation pathways of protonated tryptophan
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DOI：
10.1063/1.2770458
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发表时间：
2007-10-07
影响因子：
4.4
通讯作者：
Fujii, A.
中科院分区：
文献类型：
--
作者：
Lepere, V.;Lucas, B.;Fujii, A.
在一种独特的实验装置中研究了质子化色氨酸的光裂解，在该实验装置中，在时间和位置上一致地检测到从光裂解中发出的离子和中性物质。从这些数据中提取了动能、与离子有关的中性碎片的数量、它们的质量以及碎裂步骤的顺序。此外，还获得了从几十纳秒到毫秒的碎片时间尺度。在这些数据的基础上，提出了一个综合的碎片化机制。(C)2007年美国物理研究所。
The photofragmentation of protonated tryptophan has been investigated in a unique experimental setup, in which ion and neutral issued from the photofragmentation are detected in coincidence, in time and in position. From these data are extracted the kinetic energy, the number of neutral fragments associated with an ion, their masses, and the order of the fragmentation steps. Moreover, the fragmentation time scale ranging from tens of nanoseconds to milliseconds is obtained. From all these data, a comprehensive fragmentation mechanism is proposed. (c) 2007 American Institute of Physics.