A compact ion source combining electron-impact and thermal ionization for multiple-reflection time-of-flight mass spectrometry.

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2024-08-01 DOI:10.1063/5.0213443

Jiajun Yu, Ali Mollaebrahimi, Samuel Ayet San Andrés, Timo Dickel, Wolfgang R Plaß, Heinrich Wilsenach, Sönke Beck, Zhuang Ge, Hans Geissel, Christine Hornung, Andrew Jacobs, Gabriella Kripko-Koncz, Anna A Kwiatkowski, Meetika Narang, Christoph Scheidenberger, Jaden Sequeira, Coulter Walls

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引用次数: 0

Abstract

A compact ion source combining electron impact and thermal ionization has been developed and commissioned in two Multiple-Reflection Time-Of-Flight Mass Spectrometer (MR-TOF-MS) setups at the Fragment Separator Ion Catcher at the GSI Helmholtz Centre for Heavy Ion Research, Darmstadt, Germany, and at TRIUMF's Ion Trap for Atomic and Nuclear science at TRIUMF Canada's particle accelerator center, Vancouver, Canada. The ion source is notable for its compact dimensions of 50 mm in height and 68 mm in diameter. The ion source is currently in daily operation at both facilities. Design, simulations, and results of combining ions from thermal and electron-impact ionization of different gases (perfluoropropane and sulfur hexafluoride) are presented in this work. The systematic effects of heating power on the thermal source were studied in detail. The source has demonstrated stable and long-term production of reference ions over a wide mass range for the MR-TOF-MS. This versatile ion source has also been used to optimize and investigate the transport of ions with different chemical reactivity and ionization potentials.

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用于多次反射飞行时间质谱分析的电子撞击和热电离相结合的紧凑型离子源。

在德国达姆施塔特 GSI 赫尔姆霍兹重离子研究中心的碎片分离器离子捕获器和加拿大温哥华 TRIUMF 粒子加速器中心的 TRIUMF 原子与核科学离子阱的两个多反射飞行时间质谱仪（MR-TOF-MS）装置中，开发并试运行了结合电子撞击和热电离的紧凑型离子源。该离子源以其高度 50 毫米、直径 68 毫米的紧凑尺寸而著称。该离子源目前在这两个设施中进行日常运行。这项工作介绍了将不同气体（全氟丙烷和六氟化硫）的热电离和电子撞击电离产生的离子结合起来的设计、模拟和结果。详细研究了加热功率对热源的系统影响。该离子源已证明能在很宽的质量范围内为 MR-TOF-MS 长期稳定地产生参考离子。这种多功能离子源还被用于优化和研究具有不同化学反应性和电离电位的离子的传输。

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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.