A compact and cost-effective laser desorption source for molecular beam generation: comparison with simulations

A compact and cost-effective laser desorption source for molecular beam generation: comparison with simulations
复制标题

用于分子束生成的紧凑且经济有效的激光解吸源:与模拟的比较

DOI:
10.1088/1361-6455/ac259b
复制
发表时间:
2021
期刊:
Molecular and Optical Physics
影响因子:
--
通讯作者:
Bar, Ilana
Bar, Ilana
中科院分区:
--
文献类型:
--
作者:
Shachar, Afik;Kallos, Itai;de Vries, Mattanjah S;Bar, Ilana

文献摘要

参考文献

被引文献

相似文献

激光解吸射流冷却技术的发展使研究气相中低蒸气压分子成为可能。在这里,我们设计并组装了一个独特的紧凑型激光解吸源,包括简单的样品移动和解吸的部分,并将其连接到一个自制的飞行时间质谱仪,用于喷射冷却生物分子的光谱研究。直接模拟蒙特卡罗方法的分子束(MB)的建模和可视化提供了空间演化和全球功能的流动和源操作的新见解。通过从模拟中确定操作参数并将其与色胺的共振增强双光子电离(R2 PI)信号进行比较来验证该系统。在原点带过渡区的信号测量提供了一个R2PI光谱类似于先前从加热的样品中获得的,表明在MB中的7个构象。由于这种来源的潜力,我们预计它将通过耦合到其他系统和各种光谱来揭示其可行性。
The development of laser-desorption jet-cooling has enabled the study of low vapor pressure molecules in the gas phase. Here, we design and assemble a unique compact laser-desorption source comprising simple parts for sample movement and desorption and attach it to a home-built time-of-flight mass spectrometer for spectroscopic studies of jet-cooled biomolecules. Modeling and visualization of the molecular beam (MB) by the direct simulation Monte Carlo method provides spatial evolution and global features of the flow and new insights into source operation. The system is validated by determining operational parameters from the simulation and comparing them with the resulting resonance-enhanced two-photon ionization (R2PI) signal of tryptamine. The signal measurements in the origin band transitions region provide an R2PI spectrum resembling that previously acquired from heated samples, indicating seven conformers in the MB. Due to the potential of this source, we expect that it will reveal its feasibility through coupling to other systems and various spectroscopies.
激光辅助微米和纳米技术的基础知识
DOI: 10.1007/978-3-319-05987-7
发表时间: 2014
期刊: The Review of scientific instruments
影响因子: --
作者:
V. Veiko;T. Vartanyan
通讯作者: T. Vartanyan
DOI: 10.1063/1.458661
发表时间: 1990
影响因子: 4.4
作者:
Yunzhi Li;R. T. McIver;J. Hemminger
通讯作者: J. Hemminger
DOI: 10.1021/j100412a009
发表时间: 1986
期刊: The Journal of Physical Chemistry
影响因子: --
作者:
L. Philips;D. Levy
通讯作者: D. Levy
一水合 2-(4-氟苯基)乙胺的结构特征:光谱和计算相结合的研究。
DOI: --
发表时间: 2017
期刊: Physical Chemistry, Chemical Physics - PCCP
影响因子: --
作者:
A. Shachar;Nitzan Mayorkas;I. Bar
通讯作者: I. Bar
DOI: 10.1021/ja000502c
发表时间: 2000-08-23
影响因子: 15
作者:
Nir, E;Imhof, P;de Vries, MS
通讯作者: de Vries, MS