有機微量分析の研究 (第15報)

酸素分析に於ける窒素ガス精製用還元銅の酸素除去能力について

抄録

It is seriously necessary to remove the impurities such as oxygen and water vapor contained in the nitrogen stream used in the direct determination of organic oxygen by the method of Schütz-Unterzaucher.
The variation in blank values resulting from these impurities was investigated with the various temperatures of reduced copper provided for removal of oxygen and simultaneously with the different materials of connecting tube which should prevent the diffusion of atmospheric oxygen and moisture. It was concluded that the reduced copper maintained at 550° may eliminate the oxygen completely and further, the polyethylene connecting tube shows sufficient prevention of the permeation of atmospheric oxygen and moisture.