酸性靛蓝示差光度法测定水中低水平ClO_2的含量  

Determination of low level of ClO_2 in water by using indigo carmine differential spectrophotometry

作　　者：崔崇威[1] 黄君礼[1] 冯琦[1] 

机构地区：[1]哈尔滨建筑大学市政环境工程学院,黑龙江哈尔滨150090

出　　处：《哈尔滨建筑大学学报》1999年第6期110-112,共3页Journal of Harbin University of Civil Engineering and Architecture

基　　金：黑龙江省自然科学基金

摘　　要：研究了利用酸性靛蓝 (λmax=610nm,pH<4)的氧化还原褪色反应 ,定量地测定了水中低水平ClO2的含量 ,本方法褪色迅速且化学计量比(1:1)恒定。该方法平均加标回收率为99.8 %。变异系数为2.22 % ,最低检出限为0.005mg/L ,具有操作简便易行、准确灵敏等优点。In this paper,determination of low level of ClO2 is studied by using the decolorization of sodium indigotin disulfonate(λmax=610nm, pH< 4). The average recovery ratio of the method is 99.8%,the coefficient of variation(CV) is 2.22%and the lowest detection limit is 0.005mg/L. The method has simple,accurate and sensitive advantage.

关 键 词：二氧化氯 酸性靛蓝 示差光度法 水 

分 类 号：TU991.21[建筑科学—市政工程] TU991.25