Application of automatic titrator in water quality analysis
This thesis introduced the characteristics of Shunxin 1800 automatic titrator and the application in water quality analysis of chemical oxygen demand(CODCr),permanganate index(CODMn),and total hardness.The accuracy of chemical oxygen demand was measured,and the relative errors of low and high concentration quality control samples were 0.3%and 0.7%respectively.The precision of the blank sample was good,and the relative standard deviation(RSD)was less than 1.0%.Thedetermination results of CODMn,and total hardness in actual water samples were evaluated with F-test and t-test.Statistical evaluation showed that there was no significant difference in the results between manual titration and automatic titration.
automatic titrationwater quality analysis1800 Model Shunxin
国家科技期刊平台
NSTL
万方数据
维普
