Comparative Study on Determination of Free Residual Chlorine in Water by Multi-parameter Water Quality Analyzer Method and National Standard Method
Objective:To compare the determination of free residual chlorine in water by multi-parameter water quality analyzer method and national standard method.Method:The built-in working curve of the multi-parameter water quality analyzer was verified by chlorine standard solution,and the multi-parameter water quality analyzer method was tested by recovery test.Result:The working curve of the multi-parameter water quality analyzer was accurate and reliable,with a recovery rate of 80.0%to 95.0%and a precision of 0.38%to 6.24%,which met the standard requirements.Conclusion:Compared with the national standard method,the multi-parameter water quality analyzer method has faster detection speed and higher precision,and is suitable for the rapid detection of free residual chlorine in drinking water.
muti-parameter water quality analyzernational standard methodfree residual chlorinedrinking water