Testing Purpose:

Applicable to the determination of the permanganate index (calculated as O2) in drinking water, source water, and surface water with chloride ion content of 300-3000mg/L.

Standards Applied: 

HJ1445-2026 "Water Quality—Determination of Permanganate Index — Sodium Oxalate Reduction Acidic Titration Method"

HJ1446-2026 "Water Quality—Determination of Permanganate Index — Sodium Oxalate Reduction Alkaline Titration Method"

GB/T5750.7-2023 "Standards for Drinking Water Quality — Comprehensive Organic Indicators"

ISO8467-1986 "Water Quality — Determination of Permanganate Index"

Technical Advantages of the New Generation Permanganate Index Analyzer:

No external autosampler is required, yet it can still achieve fully automatic sample weighing and automatic pipeline cleaning, realizing the entire process: automatic metering - automatic reagent addition - automatic water bath digestion - automatic titration - automatic endpoint recognition - automatic result calculation — data printing, automatic upload, and other functions; two sets of high-precision syringe pumps can simultaneously add reagents, perform titration, and determine the titration endpoint without mutual interference, doubling work efficiency and greatly accelerating detection speed, making your testing work simpler and easier:

1）54-position automatic sampling tray; samples to be tested do not need to be weighed, as the equipment automatically meters them, and it can also achieve unlimited cyclic automatic sampling, allowing any number of samples to be automatically tested in cycles;

2）Fully automatic high-speed stable three-axis robotic motion system, quickly transferring samples to be tested from the waiting area to the digestion area and titration area;

3）The sample automatically receives sulfuric acid and potassium permanganate solution in the reagent addition area. If the sample has already been acidified, click "Cancel Acid Addition" in the system operation area;

4）Automatic water bath digestion. After digestion is completed, excess sodium oxalate is back-titrated with potassium permanganate in a constant-temperature environment (60-80 degrees);

5）Automatic determination of the titration endpoint, using advanced visual sensing technology superior to the human eye to automatically determine the titration endpoint through color change;

6）The instrument adopts a PLC control system, making the instrument more stable; the system automatically completes the entire experimental process and automatically outputs experimental result data, facilitating statistics for laboratory personnel;

7）According to national standard specifications, a boiling water bath heating method is adopted to make sample heating more uniform. It also has an automatic water replenishment function in case of low water level, ensuring that the samples to be tested are completely immersed in the boiling water bath.

8）High-precision syringe pumps are used for titration and sample addition, and the titration and sample addition accuracy reaches 5‰, reducing the impact of titration errors on results.

9）Automatically realizes safe monitoring of reagent liquid volume and displays reagent liquid level in real time. 

10）Altitude self-adaptation, capable of automatically detecting local air pressure and temperature-humidity changes, and adjusting heating temperature and time parameters in real time.

Product keywords: fully automatic permanganate index analyzer, fully automatic permanganate index analysis instrument, automatic permanganate index analyzer