总有机碳分析仪测定水中的游离二氧化碳

Determination of free carbon dioxide in water by total organic carbon analysis instrument

利用总有机碳分析仪、结合酸化吹气装置对水样中的游离二氧化碳的测定条件进行试验。结果表明水浴温度80℃,流量150 ml/min通氮气30 min为水样释放游离二氧化碳的最佳条件。总有机碳分析测定水中游离二氧化碳含量方法的建立为水质分析提供了新的方法参考。

Total organic carbon analysis instrument and acidification blowing absorption apparatus were used to analyze the free carbon dioxide in water under different test conditions. The result showed that with water bath at 80℃ and purging nitrogen （150 ml/min） for 30 rain, maximum volume of free carbon dioxide will release from water. Using total organic carbon analysis instrument to determine free carbon dioxide could be a new method for water monitoring.