High-performance multicapillary gas separation columns with MPG stationary phases, IEEE Sensors Conference

Research output: Contribution to conferencePaperpeer-review

6 Citations (Scopus)

Abstract

This paper reports the development of microfabricated multicapillary columns (μMCC) with self-assembled stationary phases for high-performance gas separation. The fabrication process merging a double-doped MEMS fabrication process and nanotechnology provides highly reproducible and conformal gold deposition inside 250μm-deep, 30μm-wide, 25cm-long μMCC with 16 channels. This technique also affords excellent bonding and coating yields (~95%). To evaluate chromatographic performance, μMCCs were functionalized by self-assembly of octadecanethiol (C18H37SH) to form monolayer-protected-gold (MPG) surface. These columns demonstrated 7300 plates/m, the highest reported on μMCCs, and separated a complex gas mixture containing compounds with wide range of boiling points.
Original languageEnglish
Number of pages4
DOIs
Publication statusPublished - 28 Oct 2011

ASJC Scopus subject areas

  • Analytical Chemistry

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