紫外分光光度法在纯水COD测定中的应用

DETERMINATION OF COD IN RO WATER BY ULTRAVIOLET ABSORPTION SPECTROMETRY

本文介绍了用紫外分光光度法测定ＲＯ产水的ＣＯＤ值的方法。作者通过一年多的对比测试和统计分析，发现紫外分光光度法与酸性高锰酸钾法测定ＲＯ产水ＣＯＤ值时无显著性差异，且精密度更高、完全可以满足纯净水生产、科研中快速测定的需要。

This paper gives a new way to determine the COD in reverse osmosis(RO) water. Through contrast test and statistic analysis for one year or more, the author discovered that no obvious difference in determining COD of RO product water using both methods of ultraviolet absorption spectrometry and acidic polassium permanganate process, moreover the former's accuracy is higher and can meet the requirements of pure water production and quick-determination in scientific research.