Gas chromatography with UV-vis molecular absorption spectrometry detection: Data acquisition and treatment when using a diode-array spectrophotometer

  1. Sanz-Vicente, I. 1
  2. Cabredo, S. 1
  3. Galbán, 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:
Chromatographia

ISSN: 0009-5893

Year of publication: 1998

Volume: 48

Issue: 7

Pages: 535-541

Type: Article

DOI: 10.1007/BF02466646 SCOPUS: 2-s2.0-0031791736 WoS: WOS:000078156800010 GOOGLE SCHOLAR

More publications in: Chromatographia

Institutional repository: lock_openOpen access Editor

Abstract

This article describes a theoretical/practical study of the parameters which affect the chromatograms obtained when using a molecular diode-array spectrometer as the detector in gas chromatography. The objective is to offer some rules which permit the identification of the optimum signal/noise relation. To achieve this, we study the effect of the different parameters which affect the noise and how to reduce their impact, as well as alternatives for increasing the signal. All the options tested can be applied by correctly programming the spectrometer with BASIC programs, within reach of any user who has even a small understanding of programming. Finally, we consider the effect that the selection of the acquisition conditions may have on the chromatographic resolution. All the studies are carried out using a mixture of alcohols and phenols.