検知管による酸素の迅速定量

概要

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Rapid determination of oxygen in atmosphere with detector tubes was studied. Detecting reagent was prepared by addition of alkaline pyrogallol solution to activated alumina particles and changed its color from white to brown by oxygen in atmosphere. Detector tube is a small glass tube packed with the detecting reagent, through which 50 ml of sample gas is passed in 100 sec. with a syringe. Two〜thirty per cent concentration of oxygen in atmosphere is easily measured by this method from the length of brown zone of detector tube colored by oxygen. The value obtained by the proposed method should be corrected by the correction table, if coexisting carbon dioxide concentration is above 5 %. The temperature of the detector tube gives no effect on the values determined by the proposed method within the range of 5〜40℃.
公益社団法人日本薬学会の論文
1966-06-30