Classification of electrospray axial regimes as revealed by spray current measurements

IF 1.6 3区化学 Q3 PHYSICS, ATOMIC, MOLECULAR & CHEMICAL

International Journal of Mass Spectrometry Pub Date : 2023-10-13 DOI:10.1016/j.ijms.2023.117150

Ioan Marginean

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Abstract

A coherent classification of electrospray axial regimes is provided based on non-linear fluid dynamics as revealed by spray current measurements and fast time-lapse imaging of the electrified meniscus. The classification includes two periodic (dripping, pulsating), two transient/chaotic (burst, astable), and two stationary (cone-jet, jetting) regimes. The dripping faucet phase diagram is described as a particular case of a more complex electrospray phase diagram. Spray current measurements and electrospray characteristic curves are presented as essential for the diagnosis of the electrospray operation and the transition between its various regimes. Reaching a consensus on regime nomenclature and a standardized approach to designate transitions between electrospray regimes is suggested. Finally, the effect of the electrospray operating regime on the mass spectrometer signal is briefly summarized.

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由喷雾电流测量揭示的电喷雾轴向状态的分类

在非线性流体动力学的基础上，通过对带电半月板的喷射电流测量和快速延时成像，提供了电喷雾轴向状态的连贯分类。分类包括两个周期(滴水，脉动)，两个瞬态/混沌(突发，不稳定)和两个平稳(锥形射流，喷射)制度。滴水水龙头相图被描述为一个更复杂的电喷雾相图的特殊情况。喷雾电流测量和电喷雾特性曲线被认为是诊断电喷雾操作及其不同状态之间转换的必要条件。建议在制度命名和标准化的方法来指定电喷雾制度之间的过渡达成共识。最后简要总结了电喷雾操作方式对质谱仪信号的影响。

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来源期刊

International Journal of Mass Spectrometry 物理-光谱学

CiteScore

3.60

自引率

5.60%

发文量

145

审稿时长

71 days

期刊介绍： The journal invites papers that advance the field of mass spectrometry by exploring fundamental aspects of ion processes using both the experimental and theoretical approaches, developing new instrumentation and experimental strategies for chemical analysis using mass spectrometry, developing new computational strategies for data interpretation and integration, reporting new applications of mass spectrometry and hyphenated techniques in biology, chemistry, geology, and physics. Papers, in which standard mass spectrometry techniques are used for analysis will not be considered. IJMS publishes full-length articles, short communications, reviews, and feature articles including young scientist features.