Preparation of calibration gas mixtures for the measurement of breath alcohol concentration

Preparation of calibration gas mixtures for the measurement of breath alcohol concentration

Calibration gas mixtures for breath alcohol measuring techniques need to have a defined ethanol concentration in water-saturated air. For the calibration of evidential breath analysers in Germany, these gases are prepared at the Physikalisch-Technische Bundesanstalt according to the saturation metho...

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Veröffentlicht in:Journal of breath research 2010-09, Vol.4 (3), p.036004-036004
Hauptverfasser: Pratzler, Sonja, Dorothea Knopf, Ulbig, Peter, Scholl, Stephan
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Sprache:eng
Schlagworte:
Breath Tests
Calibration
Ethanol - analysis
Ethanol - pharmacokinetics
Humans
Reference Values
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container_title Journal of breath research
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creator Pratzler, Sonja
Dorothea Knopf
Ulbig, Peter
Scholl, Stephan
description Calibration gas mixtures for breath alcohol measuring techniques need to have a defined ethanol concentration in water-saturated air. For the calibration of evidential breath analysers in Germany, these gases are prepared at the Physikalisch-Technische Bundesanstalt according to the saturation method. The ethanol concentration is calculated via the air-liquid partition ratios of the air-water-ethanol substance system. This article deals with the selection and critical consideration of different preparation methods for test gases and their applicability to the specific gas mixture required for breath alcohol measurements.
doi_str_mv 10.1088/1752-7155/4/3/036004
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subjects Breath Tests
Calibration
Ethanol - analysis
Ethanol - pharmacokinetics
Humans
Reference Values
title Preparation of calibration gas mixtures for the measurement of breath alcohol concentration
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