Effects of the Discharge Parameters on the Efficiency and Stability of Ambient Metastable-Induced Desorption Ionization

Ionization efficiency is an important factor for ion sources in mass spectrometry and ion mobility spectrometry.Using helium as the discharge gas,acetone as the sample,and high-field asymmetric ion mobility spectrometry（FAIMS） as the ion detection method,this work investigates in detail the effects...

Full description

Saved in:
Bibliographic Details
Published inPlasma science & technology Vol. 17; no. 12; pp. 1048 - 1052
Main Author 张晓天 陈池来 刘友江 王泓伟 张乐华 孔德义 Mario CHAVARRIA
Format Journal Article
LanguageEnglish
Published 01.12.2015
Subjects
Desorption
Discharge
Ion mobility
Ionic mobility
Ionization
Mass spectrometry
Spectrometry
Spectroscopy
亚稳态
放电参数
环境
电离效率
离子迁移谱
稳定性
解吸
诱导
Online AccessGet full text
ISSN1009-0630
DOI10.1088/1009-0630/17/12/12

Cover

More Information
Summary:Ionization efficiency is an important factor for ion sources in mass spectrometry and ion mobility spectrometry.Using helium as the discharge gas,acetone as the sample,and high-field asymmetric ion mobility spectrometry（FAIMS） as the ion detection method,this work investigates in detail the effects of discharge parameters on the efficiency of ambient metastableinduced desorption ionization（AMDI） at atmospheric pressure.The results indicate that the discharge power and gas flow rate are both significantly correlated with the ionization efficiency.Specifically,an increase in the applied discharge power leads to a rapid increase in the ionization efficiency,which gradually reaches equilibrium due to ion saturation.Moreover,when the discharge voltage is fixed at 2.1 kV,a maximum efficiency can be achieved at the flow rate of 9.0 m/s.This study provides a foundation for the design and application of AMDI for on-line detection with mass spectrometry and ion mobility spectrometry.
Bibliography:ZHANG Xiaotian, CHEN Chilai, LIU Youjiang , WANG Hongwei, ZHANG Lehua ,KONG Deyi ,Mario CHAVARRIA（ 1State Key Laboratory of Transducer Technology, Hefei Institute of Intelligent Machines, CAS, Hefei 230031, China; 2College of Electronic Science and Applied Physics, University of Technology, Hefei 2300111 China ;3Department of Automation, University of Science and Technology of China, Hefei 230027,China ;4Microsystems Laboratory, Ecole Polytechnique Federale de Lausanne （EPFL）, CH-1015 Lausanne, Switzerland）
34-1187/TL
ambient helium ionization asymmetric desorption metastable saturation acetone reaches unexpected
Ionization efficiency is an important factor for ion sources in mass spectrometry and ion mobility spectrometry.Using helium as the discharge gas,acetone as the sample,and high-field asymmetric ion mobility spectrometry（FAIMS） as the ion detection method,this work investigates in detail the effects of discharge parameters on the efficiency of ambient metastableinduced desorption ionization（AMDI） at atmospheric pressure.The results indicate that the discharge power and gas flow rate are both significantly correlated with the ionization efficiency.Specifically,an increase in the applied discharge power leads to a rapid increase in the ionization efficiency,which gradually reaches equilibrium due to ion saturation.Moreover,when the discharge voltage is fixed at 2.1 kV,a maximum efficiency can be achieved at the flow rate of 9.0 m/s.This study provides a foundation for the design and application of AMDI for on-line detection with mass spectrometry and ion mobility spectrometry.
ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:1009-0630
DOI:10.1088/1009-0630/17/12/12