Photodissociation of laser-desorbed ions as a structure determination tool.
Photodissociation of laser-desorbed ions as a structure determination tool.
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DOI：
10.1021/ac00182a010
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发表时间：
1989-04
影响因子：
7.4
通讯作者：
L. Nuwaysir;C. Wilkins
中科院分区：
文献类型：
--
作者：
L. Nuwaysir;C. Wilkins
利用激光解吸傅立叶变换质谱法（LD/FTMS）对卟啉、金属卟啉和生物碱进行分析，研究了XeCl准分子激光光解捕获离子作为碰撞诱导解离的替代方法进行结构分析。结果表明，适当金属的存在增强了光解离，并且在激光解吸过程中原位金属附着可能是一种有用的分析策略。铁，锰，和铬的附加物种进行了检查，以评估金属对倾向的光解与308 nm激发的影响。
Laser desorption Fourier transform mass spectrometry (LD/FTMS) of porphyrins, metalloporphyrins, and alkaloids is used to investigate XeCl excimer laser photodissociation of trapped ions as an alternative to collision-induced dissociation for structure analysis purposes. It is shown that the presence of an appropriate metal enhances photodissociation and that in situ metal attachment during the laser desorption event may be a useful analytical strategy. Iron-, manganese-, and chromium-attached species are examined in order to assess the effect of metal upon the propensity for photodissociation with 308-nm excitation.