基于印刷电路板的易于组装的介电屏障放电等离子电离源产生的离子形成的研究

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Moritz Hitzemann¹, Daniel Röckrath¹, Alexander Haack¹

¹Leibniz University Hannover, Institute of Electrical Engineering and Measurement Technology, Appelstr. 9A, Hannover, 30167, Germany.

|December 13, 2025

概括

一个新的印刷电路板等离子电离源为分析物提供软电离. 这种介电屏障放电等离子体通过氧化脱将酒精转化为,这是化学分析的关键发现.

科学领域:

分析化学分析化学
血科学是一门科学课.
质谱测量质量谱测量

背景情况:

介电屏障放电 (DBD) 等离子源具有独特的电离能力.
印刷电路板 (PCB) 技术使微型化和具有成本效益的等离子体设备制造成为可能.
了解离子化学对于开发敏感的分析方法至关重要.

研究的目的:

为了研究一种新的基于PCB的DBD等离子电离源.
以正极和负极的反应物和产物离子进行表征.
分析分析物与等离子体相互作用对电离和碎片化的影响.

主要方法:

将一个定制的离子运动谱仪 (IMS) 和质谱仪 (MS) 连接到PCB-DBD等离子源.
分析各种分析物,包括酒精,和挥发性麻醉剂.
当分析物通过或绕过等离子体时,比较电离和反应途径.

主要成果:

确定的主导反应物离子:质子化水群 (正态) 和酸-酸群 (负态).
证明了柔软的电离,分析物的碎片化最小.
当通过血时,通过氧化脱观察到大量的酒精转化为.

结论:

PCB-DBD等离子源为敏感分析提供了明确的离子化学.
观察到的酒精的氧化脱是一种重要的化学转化.
这项技术有望用于选择性化学分析和反应监测.

关键词:

这就是为什么DBD是DBD.介电屏障放电的放电方式在IMS中,IMS是IMS.离子移动性光谱仪离子移动性光谱仪在MSMSMSMSMSMSMSMSMSMSMS中,我们可以看到等离子体电离源的来源

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