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Resistively heated temperature programmable silicon micromachined gas chromatography with differential mobility spectrometry


Luong, J and Nazarov, E and Gras, R and Shellie, RA and Cortes, HJ, Resistively heated temperature programmable silicon micromachined gas chromatography with differential mobility spectrometry, International Journal for Ion Mobility Spectrometry, 15, (3) pp. 179-187. ISSN 1435-6163 (2012) [Refereed Article]

Copyright Statement

Copyright 2012 Springer-Verlag

DOI: doi:10.1007/s12127-012-0105-1


A microfabricated electromechanical system based on radio frequency modulated ion mobility spectrometry (MEMS-RFIMS), also known as differential ion mobility spectrometry (DMS) has been successfully interfaced to a custom-fabricated resistively heated temperature programmable micromachined gas chromatograph. In contrast to a conventional time-of-flight ion mobility spectrometer, the DMS uses the non-linear mobility dependence in strong radio frequency electric fields for ion filtering. Selective and sensitive detection of targeted analytes of interest can be achieved by using different transport gases, radio frequencies, and associated compensation voltages. In addition, the detection of both positive and negative ions, depending on the ionization mechanism favorable to the analytes involved is achieved. When compared to a stand-alone GC with a non spectrometric detector or a stand-alone DMS, GC-DMS as a hyphenated technique offers two competitive advantages; two orthogonal separating methods in a single analytical system and the resolving power of gas chromatography to minimize charge exchange in the ionization chamber of the detector. In this article, a portable, resistively heated temperature programmable silicon machined gas chromatograph with differential mobility detection is introduced. The performance of the instrument is illustrated with examples of difficult industrial applications.

Item Details

Item Type:Refereed Article
Keywords:differential mobility detection, resistively heated temperature programming, silicon micromachining gas chromatography, fast gas chromatography
Research Division:Chemical Sciences
Research Group:Analytical chemistry
Research Field:Separation science
Objective Division:Expanding Knowledge
Objective Group:Expanding knowledge
Objective Field:Expanding knowledge in the chemical sciences
UTAS Author:Luong, J (Mr Jim Luong)
UTAS Author:Shellie, RA (Associate Professor Robert Shellie)
UTAS Author:Cortes, HJ (Dr Hernan Cortes)
ID Code:79505
Year Published:2012
Deposited By:Austn Centre for Research in Separation Science
Deposited On:2012-09-18
Last Modified:2013-06-13

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