Gas chromatography with ultraviolet-visible molecular absorption spectrometry detection: increasing sensitivity of the determination of alcohols and phenols by derivatization
- Sanz-Vicente, I. 1
- Cabredo, S. 1
- Galbán, J. 2
-
1
Universidad de La Rioja
info
-
2
Universidad de Zaragoza
info
ISSN: 0009-5893
Any de publicació: 1998
Volum: 48
Número: 7
Pàgines: 542-547
Tipus: Article
Altres publicacions en: Chromatographia
Resum
A method is proposed for the determination of alcohols and phenols based on their derivatization to benzoates and gas chromatography-gas phase molecular absorption spectrometry. All parameters affecting the derivatization reaction, such as the solvent, basic medium, benzoyl chloride and stirring time, were optimized. Chromatographic and instrumental conditions were also studied. Finally, a calibration study was performed and the results were compared to that obtained by the direct determination of the compounds.