Application of the photoionization detector for the determination of ethanol in aqueous solutions and human breath.
A determination of ethanol is described, which is based on a purging system in conjunction with a photoionization detector. With that system a fast and reliable determination of ethanol in aqueous solutions is possible. The system has been used for the analysis of wine. The 3delta-detection limit has been 0.005% ethanol, the relative standard deviation 4.8 to 6.0% and the time constant of the entire analytical system 20 s. The photoionization detector has been also applied to the analysis of artificial and genuine human breath. A comparison with gas-chromatography and non-dispersive IR-detection has been proven the reliability of results.
Reimann
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Institut für Angewandte Analytik und Umweltchemie, Humboldt-Universität, Hessische Strasse 1-2, 10115, Berlin, Germany.
Mergemeier
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Ebner
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Scholz
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