
doi: 10.1007/bf01728552
Die Bestimmung der Oberflachenspannung des Sputums mit der Ringmethode nachLecomte du Nouy ist nicht praktikabel, weil diese Substanz nicht die erforderliche Voraussetzung einer planen Oberflache erfullt. Es ist ferner zweifelhaft, ob Messungen mit geeigneteren Verfahren nicht in der Mehrzahl der Falle die Oberflachenspannung des dem Sputum aufliegenden Speichels statt der des Bronchialsekretes ermitteln wurden.
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