辽河水质中UVA与COD_(Mn)的相关关系探讨

Discussion on Correlation between UVA and COD_(Mn) in Liao River Water

通过对辽河水的紫外吸光度(UVA)与高锰酸盐指数(CODMn)测定值进行线性回归分析,得出辽河水质中的紫外吸光度与高锰酸盐指数之间具有良好的相关性。在一定条件下,可利用测定的紫外吸光度折算出高锰酸盐指数。

The value of ultraviolet absorbancy degree（UVA） and Permanganate index （CODMn） of Liao river water were detected to make a linear regression. The results show that there was a good correlations between UVA and CODMn. So, CODMn value will be calculated by using the date of UVA in some certain conditions.