New approaches on gas phase molecular absorption spectrometry detection in gas chromatography

  1. Sanz Vicente, I. 1
  2. Cabredo Pinillos, S. 1
  3. Galbán Bernal, J. 2
  4. Sanz Asensio, J. 1
  1. 1 Universidad de La Rioja
    info

    Universidad de La Rioja

    Logroño, España

    ROR https://ror.org/0553yr311

  2. 2 Universidad de Zaragoza
    info

    Universidad de Zaragoza

    Zaragoza, España

    ROR https://ror.org/012a91z28

Journal:
Fresenius' Journal of Analytical Chemistry

ISSN: 0937-0633

Year of publication: 1996

Volume: 355

Issue: 5

Pages: 733-735

Type: Article

SCOPUS: 2-s2.0-0030376773 GOOGLE SCHOLAR

More publications in: Fresenius' Journal of Analytical Chemistry

Abstract

A hyphenated technique for coupling a spectrophotometric detector to a gas chromatograph with a packed column is described. The packed column was connected directly to the flow cell (path length 1 cm) which was placed in a UV-visible molecular absorption spectrophotometer with diode array detector. This detection system was employed for separating and determining benzene, toluene, 1,4-xylene, 1,2-xylene and mesitylene. Molecular absorption spectra of all the separated compounds have also been obtained. A new possibility for coupling capillary gas chromatography and gas phase molecular absorption spectrometry is currently being tested. In this new case, two fibre optics are used and the measurement is performed in the capillary column. © Springer-Verlag 1996.