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测定微量的CO,国内常用的方法是红外法、色谱法和电导法。这些方法有的灵敏度不高,有的仪器复杂。而库仑法测定CO与I_2O_5反应生成的I_2,灵敏度高,仪器简便,可连续自动测定,国外已有介绍。检测下限达0.03ppm,可连续监测三个月。我们用原电池库仑法测定CO,仪器很简单,可连续自动监测,灵敏度达0.1ppm。影响测定的关键是I_2O_5的造粒和预处理,我们做了各种试
Determination of trace amounts of CO, the domestic commonly used method is infrared, chromatography and conductivity method. Some of these methods are not sensitive and some are complicated. The Coulometric method for the determination of I_2O produced by the reaction of CO and I_2O_5 has high sensitivity, simple instrument, and can be continuously and automatically measured, which has been introduced abroad. Detection limit of 0.03ppm, continuous monitoring for three months. We use the original battery Coulometric CO, the instrument is very simple, continuous automatic monitoring, the sensitivity of 0.1ppm. The key to influence the determination of I_2O_5 granulation and pretreatment, we have done a variety of tests