Real-Time Simultaneous Separation and Detection of Chemicals Using Integrated Microcolumn and Surface Plasmon Resonance Imaging Micro-GC

Zijian Du, Francis Tsow, Di Wang, Nongjian Tao

Research output: Contribution to journalArticle

2 Scopus citations

Abstract

An integrated and miniaturized micro-gas chromatography (GC) with real-time imaging capability for simultaneous chemical separation and detection was developed. Surface plasmon resonance imaging (SPRi) was used as a sensitive and real-time imaging-based detector for various gaseous chemical mixtures, and good gas chromatographs were obtained. The system integrated a home-made miniaturized molecular sieve packed spiral microchannel column with the SPRi chip and real-time chemical separation and detection were demonstrated using alkanes. The chemical separation processes were simulated using COMSOL and matched well with the experimental results. The system enabled the study of chemical separation processes in real-time by miniaturizing and integrating the micro-GC separation and detection units. This approach can be expanded to multidimensional GC development.

Original languageEnglish (US)
Article number8214247
Pages (from-to)1351-1357
Number of pages7
JournalIEEE Sensors Journal
Volume18
Issue number4
DOIs
StatePublished - Feb 15 2018

Keywords

  • GC column
  • GC detector
  • Gas chromatography (GC)
  • chemical separation
  • micro-GC
  • miniturization and integration
  • surface plasmon resonance imaging (SPRi)

ASJC Scopus subject areas

  • Instrumentation
  • Electrical and Electronic Engineering

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