Share Email Print
cover

Proceedings Paper

Development of an ion mobility spectrometer with UV ionization source to detect ketones and BTX
Author(s): Kai Ni; Jingran Guo; Guangli Ou; Yu Lei; Xiaohao Wang
Format Member Price Non-Member Price
PDF $14.40 $18.00

Paper Abstract

Ion mobility spectrometry (IMS) is an attractive material analysis technology for developing a miniaturized volatile organic compounds (VOCs) on-site monitoring sensor. Having simple instrumentation, IMS is especially suitable when portability and sensitivity are required. In this work, we designed an ion mobility spectrometer with UV ionization. The geometric parameters of the UV-IMS were optimized based on a numerical simulation. The simulation results demonstrated that the drift electric field in the drift region was approximately homogenous and in the reaction region had an ion focusing effect, which could improve the sensitivity and resolving power of the IMS. The UV-IMS has been constructed and used to detect VOCs, such as acetone, benzene, toluene and m-xylene (BTX). The resolution of these substance measured from the UV-IMS in the atmospheric conditions are about 30 and the limit of detection (LOD) is low to ppmv. The ion mobility module and electric circuit are integrated in a main PCB, which can facilitate mass production and miniaturization. The present UV-IMS is expected to become a tool of choice for the on-site monitoring for VOCs.

Paper Details

Date Published: 8 November 2014
PDF: 10 pages
Proc. SPIE 9259, Remote Sensing of the Atmosphere, Clouds, and Precipitation V, 925910 (8 November 2014); doi: 10.1117/12.2068437
Show Author Affiliations
Kai Ni, Graduate School at Shenzhen, Tsinghua Univ. (China)
Jingran Guo, Graduate School at Shenzhen, Tsinghua Univ. (China)
Guangli Ou, Graduate School at Shenzhen, Tsinghua Univ. (China)
Yu Lei, Graduate School at Shenzhen, Tsinghua Univ. (China)
Xiaohao Wang, Graduate School at Shenzhen, Tsinghua Univ. (China)


Published in SPIE Proceedings Vol. 9259:
Remote Sensing of the Atmosphere, Clouds, and Precipitation V
Eastwood Im; Song Yang; Peng Zhang, Editor(s)

© SPIE. Terms of Use
Back to Top