Halliday, Jaydene, Lewis, Alastair C., Hamilton, Jacqueline F., Rhodes, Christopher, Bartle, Keith D., Homewood, Philip, Grenfell, Robin J. P., Goody, Brian, Harling, Alice, Brewer, Paul, Vargha, Gergely, and Milton, Martin J. T.
GAS chromatography, MEASUREMENT, VOLATILE organic compounds, ELECTRONIC modulators, SEPARATION (Technology), MICROFABRICATION, and EQUIPMENT & supplies
This article reports the early development of a microfabricated comprehensive gas chromatography(GC) system suitable for the separation of volatile organic compounds (VOCs) and competitive for uses as a portable measurement device. Thus low-power device showed good separation performance for a small set of VOCs and sub-ng detection sensitivity to monoaromatics. Comprehensive GC separation was achieved by coupling the primary column to the secondary via a differential flow modulator. Preliminary results from the 2D separation of gas mixes of several of gas mixes of several VOCs in the ppm range are promising. [ABSTRACT FROM AUTHOR]