期刊
SPECTROCHIMICA ACTA PART B-ATOMIC SPECTROSCOPY
卷 93, 期 -, 页码 34-40出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.sab.2013.12.010
关键词
Multi-collector-ICP-MS; Mass discrimination; Shock wave formation; Direct Simulation Monte Carlo; High performance computing
类别
资金
- European Metrology Research Program (EMRP) for the organizational research excellence grant (REG) provided in the context of the SIB09-Elements
- European Metrology Research Program
- EURAMET
- European Union
The interface between the atmospheric pressure plasma ion source and the high vacuum mass spectrometer is a crucial part of an inductively coupled plasma-mass spectrometer. It influences the efficiency of the mass transfer into the mass spectrometer, it also contributes to the formation of interfering ions and to mass discrimination. This region was simulated using the Direct Simulation Monte Carlo method with respect to the formation of shock waves, mass transport and mass discrimination. The modeling results for shock waves and mass transport are in overall agreement with the literature. Insights into the effects and geometrical features causing mass discrimination could be gained. The overall observed collision based mass discrimination is lower than expected from measurements on real instruments, supporting the assumptions that inter-particle collisions play a minor role in this context published earlier. A full representation of the study, for two selected geometries, is given in form of a movie as supplementary data. (c) 2014 Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据