Schoknecht G, Kophamel B, Barduhn B
Blutalkohol. 1989 May;26(3):137-49.
Breath-alcohol concentration determined in expired alveolar air depends even at equal blood concentration on the temperature of the breath while leaving the subject's mouth. By using a two-stage simulator it is possible to simulate the physiological reality and to examine the measuring conditions of the temperature. The results show the essential influence of the mouthpieces and the environmental temperature on the measured values. Deviations especially appear at low environmental temperature. To reduce systematic deviations an electrically heated support of the temperature probe was developed which diminishes the influence of the mouthpieces to -0.3 degree centigrade. This device almost eliminates the influence of temperature of the environment.
呼出肺泡气中测定的呼气酒精浓度，即使在血液浓度相同的情况下，也取决于呼气离开受试者口腔时的温度。通过使用两级模拟器，可以模拟生理现实并检查温度的测量条件。结果表明，吸嘴和环境温度对测量值有重要影响。偏差尤其在低环境温度下出现。为了减少系统偏差，开发了一种温度探头的电加热支架，可将吸嘴的影响降低至0.3摄氏度。该装置几乎消除了环境温度的影响。
