Water quality permanganate index online analyzer and detection method thereof

The invention provides a water quality permanganate index online analyzer and a detection method thereof. The analyzer comprises a potassium permanganate reagent metering assembly, a reagent meteringassembly, a sample feeding assembly, a titration reaction assembly, a liquid discharging assembly and a single chip microcomputer, wherein the potassium permanganate reagent metering assembly and thedetection reagent metering assembly are connected with the titration reaction assembly through liquid conveying channels, the sample feeding assembly is connected with the titration reaction assemblythrough a liquid conveying channel, the liquid discharging assembly is connected with the titration reaction assembly through a liquid conveying channel, and the single-chip microcomputer is used forbeing connected with electronic components in all the assemblies. According to the method, the steps of sample feeding, metering, reaction, titration measurement and the like are fully automated, thepermanganate index content in