Peak Profile Analysis in High Field Asymmetric Wave Ion Mobility Spectrometry  

高场不对称波形离了迁移谱谱图峰分析办法研究

作　　者：陈池米[1,2] 孔德义[1] 汪小华[1] 王焕钦 双丰 梅涛[1] 

机构地区：[1]中国科学院合肥智能机械研究所传感技术国家重点实验室,合肥230031 [2]中国科学技术大学精密机械与精密仪器系,合肥230027

出　　处：《Chinese Journal of Chemical Physics》2011年第3期325-329,I0004,共6页化学物理学报（英文）

基　　金：This work was supported by the National Natural Science Foundation of China （No.60871037 andNo.61004133） and the Innovation and Technology Fund of Hefei Institutes of Physical Science.

摘　　要：High field asymmetric wave ion mobility spectrometry （FAIMS） is a powerful tool to detect and characterize gas-phase ions, while the unsolvable partial differential equation of ions moving in ion drift tube poses a big challenge to FAIMS spectral peak analysis. In this work, a universal and effective model of FAIMS spectral peak profile has been proposed by introducing ion trajectory and loss height. With this model, the influence of the structure of ion drift tube, dispersion voltages, compensation voltages, and carrier gas flow rate on the FAIMS spectral peak characteristics like peak shape, full width at half maximum and peak height is analyzed and discussed. The results show that the influence of different factors on the FAIMS spectral peak profile can be qualitatively described by the model which agrees with the experimental data.

关 键 词：High field asymmetric wave ion mobility spectrometry Loss height Ion trajectory Spectral peak profile model Parameter optimization 

分 类 号：O[理学]