Tandem ion mobility spectrometry coupled to laser excitation.
Tandem ion mobility spectrometry coupled to laser excitation.
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串联离子迁移谱与激光激发耦合。
DOI：
10.1063/1.4930604
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发表时间：
2015
期刊：
影响因子：
--
通讯作者：
P. Dugourd
中科院分区：
文献类型：
--
作者：
Anne;F. Chirot;C. Choi;C. Clavier;M. Barbaire;J. Maurelli;X. Dagany;L. MacAleese;P. Dugourd
这篇手稿描述了一种新的实验装置，允许进行串联离子迁移谱（IMS）测量，并耦合到一个高分辨率的飞行时间质谱仪。它由两个79厘米长的漂移管组成，通过双离子漏斗组件连接。该装置被构建为允许在两个漂移管之间的转移区域中的离子的激光照射。该几何形状允许根据第一漂移管中的离子迁移率选择离子，以照射所选择的离子，并检查第二漂移管中的产物离子的离子迁移率。在同一区域（两个管之间）以及第二个管和飞行时间之间，通过碰撞激活是可能的。报道了关于泛素的IMS-IMS实验。我们选择了一个给定的电荷态+7的异构体，并探讨其结构重排后的碰撞激活两个漂移管之间。报道了一个以曙红Y为研究对象的IMS-激光-IMS实验的实例，其中激光辐照用于从双去质子化物质开始通过电子光剥离产生自由基离子。这允许测量自由基光产物的碰撞截面，其不能直接用电喷雾源产生。
This manuscript describes a new experimental setup that allows to perform tandem ion mobility spectrometry (IMS) measurements and which is coupled to a high resolution time-of-flight mass spectrometer. It consists of two 79 cm long drift tubes connected by a dual ion funnel assembly. The setup was built to permit laser irradiation of the ions in the transfer region between the two drift tubes. This geometry allows selecting ions according to their ion mobility in the first drift tube, to irradiate selected ions, and examine the ion mobility of the product ions in the second drift tube. Activation by collision is possible in the same region (between the two tubes) and between the second tube and the time-of-flight. IMS-IMS experiments on Ubiquitin are reported. We selected a given isomer of charge state +7 and explored its structural rearrangement following collisional activation between the two drift tubes. An example of IMS-laser-IMS experiment is reported on eosin Y, where laser irradiation was used to produce radical ions by electron photodetachment starting from doubly deprotonated species. This allowed measuring the collision cross section of the radical photo-product, which cannot be directly produced with an electrospray source.
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影响因子：
8.4
作者：
Daly S;Kulesza A;Poussigue F;Simon AL;Choi CM;Knight G;Chirot F;MacAleese L;Antoine R;Dugourd P
通讯作者：
Dugourd P
影响因子：
7.4
作者：
Clowers, Brian H.;Ibrahim, Yehia M.;Smith, Richard D.
通讯作者：
Smith, Richard D.
影响因子：
7.4
作者：
Koeniger, Stormy L.;Merenbloom, Samuel I.;Clemmer, David E.
通讯作者：
Clemmer, David E.
气相中α-乳清蛋白衍生的多阴离子的构象选择性光电子能谱
DOI：
10.1039/c3cp54596b
发表时间：
2014
期刊：
Physical chemistry chemical physics : PCCP
影响因子：
--
作者：
M. Vonderach;M.-O. WinghartL. MacAleese;F. Chirot;R. Antoine;Ph. Dugourd;P. Weis;O. Hampe;M.M. Kappes
通讯作者：
M.M. Kappes