Dynamic Trapping Experiments in Fourier Transform Mass Spectrometry

该项目属于分析和表面化学的一般领域，以及质谱学的子领域。戴维·劳德教授将研究操纵离子包的方法，这些离子在离子回旋共振中循环。动态捕获技术将被用来控制回旋加速器内离子的动能分布。这就提高了傅里叶变换质谱仪的分辨率和高质量检测能力。改进后的探测系统的进一步工作将侧重于设计和建造用于激光解吸FTMS的光纤接口。悬浮捕集技术将被用来控制回旋加速器内中性物质的浓度。这项研究将对色谱流与FTMS的耦合产生影响，从而能够直接分析非常复杂的混合物。

This project is in the general area of analytical and surface chemistry and in the subfield of mass spectrometry. Professor David Laude will study the means to manipulate the packet of ions which cycle in ion cyclotron resonance. Dynamic trapping techniques will be used to control the kinetic energy distributions of ions within the cyclotron cell. This leads to improvement of resolution and high mass detection in Fourier transform mass spectrometry (FTMS). Further work with the improved detection system will focus on design and construction of a fiber optic interface for laser desorption FTMS. Suspended trapping techniques will be used to control the concentration of neutral species within the cyclotron cell. This research will have impact on the coupling of chromatographic streams to the FTMS enabling direct analysis of very complex mixtures.