水溶液中二氧化氯及系列氧化物的测定

Determination of ClO_2、Cl_2、ClO_2^-、ClO_3^- in aqueous solution

根据碘离子在不同 p H值与 Cl O2 、Cl2 、Cl O- 2 、Cl O- 3发生不同反应的原理 ,提出同时分析含氯系列氧化物的方法。相对标准偏差 1 .2 %～ 6.5 % ,加标回收率可达 92 .6%～ 94.8%。该方法不仅可用于测定二氧化氯发生器产物各组分的浓度 ,还能用于测定给水和废水处理中的二氧化氯。

A analytical method is described about the determination of chlorine dioxide, chlorite, chlorine, chlorate in aqueous solution. The titration determination of iodine is formed by the oxidation of iodide by the species of interest Samples pretreatment by purging and pH adjustment are required to differentiate the various chlorine species present The standard deviations are 1 2%～6 5% and the recoveries are 92%～94%