Gas Phase Molecular Absorption Spectrometry as a Gas Chromatography detector: Determination of alcohols

  1. Sanz-Vicente, I. 1
  2. Cabredo, S. 1
  3. Galban, J. 2
  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:
Journal of Chromatographic Science

ISSN: 0021-9665

Year of publication: 1999

Volume: 37

Issue: 4

Pages: 126-132

Type: Article

SCOPUS: 2-s2.0-18944378697 WoS: WOS:000079628400006 GOOGLE SCHOLAR

More publications in: Journal of Chromatographic Science

Institutional repository: lock_openOpen access Editor

Abstract

A mixture containing methanol, ethanol, 2-propanol, 1-butanol, 1-pentanol, 1-hexanol, benzyl alcohol, phenol, 2,4-dimethylphenol, 2,3-dimethylphenol, and 2-nitrophenol is analyzed using a simple detection system for gas chromatography based on molecular absorption spectrometry in the gas phase. All of the parameters affecting the determination are optimized, including solvent, temperature, carrier gas flow, type of flow cell, injection volume, and measurement wavelength. The analytical characteristics of each compound are calculated, obtaining detection limits ranging from 2.5 to 15 mg/L for aromatic alcohols and from 47 to 120 mg/L for lineal alcohols. The method is applied to several synthetic mixtures with good results.