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遵照毛主席“独立自主,自力更生”的教导,我们采用前文报导的可控硅低压大电流脉冲热源熔样,析出的一氧化碳等气体由氩气直接带入色谱柱进行分离,然后进入热导池之一臂,根据两臂电位差所记录而得的一氧化碳峰高,计算样品中氧的含量。本法具有设备价廉、分析成本低、不需真空及低温装置、操作简便、快速等特点。测定金属中氧含量为0.01％至1.5％范围内的样品。重现性及准确度良好。方法易在中小厂矿建立。一、定氧装置本装置由载气纯化系统、可控硅低压大电流加热电源、试样熔炉及色谱仪等部
According to Chairman Mao “independent, self-reliance,” the teaching, we use the previously reported thyristor low-voltage high-current pulsed heat source melting, precipitated carbon monoxide and other gases directly into the column by argon gas separation, and then into one of the thermal conductivity pool , Calculated from the potential difference between the arms of the carbon monoxide peak height calculated in the sample of oxygen content. This method has the advantages of low cost equipment, low analysis cost, no need of vacuum and low temperature equipment, easy operation and quick performance. Determination of metal in the oxygen content of 0.01% to 1.5% of the sample range. Reproducibility and accuracy are good. The method is easy to establish in small factories and mines. First, set the oxygen device The device consists of a carrier gas purification system, SCR low-voltage high-current heating power, sample furnace and chromatography and other ministries