Determination of Phenol in Drinking Water by Flow Injection Analysis

Objective To establish flow injection analysis for determination of volatile phenols in drinking water by using 4-amino spectrophotometry diantipyryl.Methods Drinking water samples were treated by online distillation,condensation and colorimetric determination were automatically finished by QC8500 flow injection analyzer.Results The minimum detectable concentration was 1.14 μg / L,the relative standards deviation was 1.86%-3.06%, recovery rate was 94.2%-99.5%,respectively.The same water sample was tested using two different methods,which the detection results showed that there was no no significant difference(t =0.632,P 0.05).Conclusion The method has the characteristics of simplicity,accuracy,high automation and reliability,it is suitable for large amount samples analysis.