摘要
为了规范检测水中低浓度二氧化氯,本文以美国哈希公司现场测定仪的检测原理为基础,加以改进,发展了实验室快速测定二氧化氯的方法。二氧化氯的浓度在0.02～5.00 mg/L时,标准曲线线性较好,测定结果的相对标准偏差为2.3%,平均回收率为90.5,与现场测定仪相比,测定结果无显著差异。该法可用于饮用水中低浓度二氧化氯的实验室测定。
In order to standardization determine the low concentration chlorine dioxide in water, this paper developed a speed method which was improved on the basis of the HACH pocket colorimeter TM II. AA had a appropriate linear relationship with the concentration of chlorine dioxide in the range of 0.02 N 5.00 mg/L. The RSD was 2.3%, the recovery was 90.5%, and there was no difference between the field test and laboratorial analysis. This method could be applied to determine the low concentration chlorine dioxide in drinking water in the lab.
出处
《环境与发展》
2013年第2期121-124,共4页
Environment & Development
关键词
DPD
分光光度法
水
二氧化氯
DPD
Spectrophotometry
Water
Chlorine dioxide
