Regime transition in electromechanical fluid atomization and implications to analyte ionization for mass spectrometric analysis.
Regime transition in electromechanical fluid atomization and implications to analyte ionization for mass spectrometric analysis.
复制标题
DOI：
10.1016/j.jasms.2010.07.007
复制
发表时间：
2010-11
影响因子：
3.2
通讯作者：
Fedorov AG
中科院分区：
文献类型：
--
作者：
Forbes TP;Degertekin FL;Fedorov AG
从纯机械喷射过渡到机电喷射，电喷雾的物理过程进行了研究，通过互补的缩放分析和光学可视化。实验表征和可视化进行与超声驱动阵列的微机械超声电喷雾（AMUSE）离子源，以解耦的电场和机械场。一个新的无量纲参数，芬恩数，被引入到定义之间的过渡的喷雾制度，在其依赖于特征斯特劳哈尔数的喷射过程。从理论上推导出一个基本的关系和斯特劳哈尔数之间的实验证实，在喷雾液体电解质的不同离子强度进行了变化幅度的电场。这种关系和带电液滴生成物理的基本理解对不同类型分析物的最佳电离效率和质谱响应具有直接影响。
The physical processes governing the transition from purely mechanical ejection to electromechanical ejection to electrospraying are investigated through complementary scaling analysis and optical visualization. Experimental characterization and visualization are performed with the ultrasonically-driven array of micromachined ultrasonic electrospray (AMUSE) ion source to decouple the electrical and mechanical fields. A new dimensionless parameter, the Fenn number, is introduced to define a transition between the spray regimes, in terms of its dependence on the characteristic Strouhal number for the ejection process. A fundamental relationship between the Fenn and Strouhal numbers is theoretically derived and confirmed experimentally in spraying liquid electrolytes of different ionic strength subjected to a varying magnitude electric field. This relationship and the basic understanding of the charged droplet generation physics have direct implications on the optimal ionization efficiency and mass spectrometric response for different types of analytes.
登录
查看更多内容
影响因子：
19.6
作者：
Collins, Robert T.;Jones, Jeremy J.;Basaran, Osman A.
通讯作者：
Basaran, Osman A.
影响因子：
7.4
作者：
Marginean, I;Parvin, L;Vertes, A
通讯作者：
Vertes, A
影响因子：
7.4
作者：
Bakhoum, SFW;Agnes, GR
通讯作者：
Agnes, GR
DOI：
10.1016/j.jasms.2009.05.006
发表时间：
2009-09-01
影响因子：
3.2
作者：
Forbes, Thomas P.;Dixon, R. Brent;Fedorov, Andrei G.
通讯作者：
Fedorov, Andrei G.
影响因子：
2.4
作者：
Marginean, Ioan;Nemes, Peter;Vertes, Akos
通讯作者：
Vertes, Akos