Fabrication and characterization of an ion mobility spectrometer device for volatile organic compounds detection

机译：用于挥发性有机化合物检测的离子迁移谱仪装置的制造和表征

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This work proposes a new geometry for an Ion Mobility Spectrometer (IMS) in order to detect toluene, 2-propanol and water vapor. The IMS system was designed with a compact ionization chamber followed by another capable of selectively discriminate the range radius of the charged ions that collides to lateral sensing electrodes under a bidimensional distribution of high electric fields (0.0 to 27kV/cm) and under a stationary flow regime of ions, without turbulence, using a vacuum pump coupled to the chamber. The MATLAB platform was employed to solve the equations that describes the ion trajectories as a function of their mass and the Quickfield6.3 program was employed to simulate the bidimensional distribution of high electric fields under a stationary flow regime of ions without turbulence. The results showed a good fit of the range radius of the ionized species with the position of the lateral sensing electrodes after measuring the current intensity associated to the different ionic masses obtained from the ionization of toluene, 2-propanol and water, respectively.

机译：这项工作为离子迁移谱仪（IMS）提出了一种新的几何结构，以检测甲苯，2-丙醇和水蒸气。 IMS系统设计为具有紧凑的电离室，其后是另一个能够选择性区分在高电场（0.0至27kV / cm）的二维分布和固定流量下与侧向感应电极碰撞的带电离子的范围半径使用与腔室相连的真空泵，在不产生湍流的情况下实现离子的稳定状态。使用MATLAB平台求解描述离子轨迹作为其质量的函数的方程式，并使用Quickfield6.3程序来模拟在没有湍流的稳定离子流态下高电场的二维分布。结果表明，分别测量由甲苯，2-丙醇和水的电离获得的不同离子质量相关的电流强度后，电离物质的范围半径与横向感应电极的位置具有良好的匹配性。

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来源
《2017 32nd Symposium on Microelectronics Technology and Devices》|2017年|1-4|共4页
会议地点 Fortaleza(BR)
作者
R. G. Moreira; L. H. Higa Moreira; S. G. dos Santos Filho;
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作者单位

University of São Paulo, LSI/PSI/EPUSP, Av. Prof. Luciano Gualberto - trav. 3, 153, São Paulo, SP, Brazil;

University of São Paulo, LSI/PSI/EPUSP, Av. Prof. Luciano Gualberto - trav. 3, 153, São Paulo, SP, Brazil;

University of São Paulo, LSI/PSI/EPUSP, Av. Prof. Luciano Gualberto - trav. 3, 153, São Paulo, SP, Brazil;

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原文格式 PDF
正文语种 eng
中图分类
关键词
Electric fields; Microelectrodes; Mathematical model; Ionization chambers;

机译：电场;微电极;数学模型;电离室;;

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Fabrication and characterization of an ion mobility spectrometer device for volatile organic compounds detection

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