DPD分光光度法对氯和二氧化氯的区分测定

Distinction between Chlorine and Chlorine Dioxidewith DPD Spectrophotometry

利用ＤＰＤ分光光度法对氯和二氧化氯的区分测定进行了研究．结果表明，ＤＰＤ法可准确区分两者的含量，该方法既可用于确定二氧化氯发生器的产物成分，确定其产率，并调整工艺参数，提高工作效率，同时也可用于确定投加量和测定残余量的成分．

An experimental study has been made in this paper,which focuses on the distinction between chlorine and chlorine dioxide with DPD spectrophotometry.The results of the experiment indicate DPD spectrophotometry can be distinguished between chlorine and chlorine dioxide.The method can be used to determine the ratio of chlorine dioxide generator products in order to reorganise parameters of process and enhance efficiency.Moreover,the method can be used to determine dose and survivals in disinfection.