LB-4200 Permanganate Index Fully Automatic Analyzer Introduction: Permanganate index, also known as oxygen consumption, also known as chemical oxygen demand (manganese method), is expressed in CODMn. It refers to using potassium permanganate as an oxidant to oxidize reducing substances in water under certain conditions, converting the amount of potassium permanganate consumed into oxygen (O2, mg/L). Reducing substances in water include inorganic and organic substances, mainly organic substances. Therefore, oxygen consumption can indirectly reflect the degree of organic pollution in water, and is a comprehensive indicator for evaluating the total amount of organic pollution in water. Scope of application: It is suitable for the determination of drinking water, source water, surface water, and groundwater. Inorganic reducing substances such as NO2 -, S2 -, and Fe2+in samples can be determined. The chloride ion concentration is higher than 300mg/L, and the determination method of oxidation in alkaline medium is used. The higher applicable standard requirements can be measured at 5.0mg/L (calculated as O2), which can be adjusted according to the actual needs of customers. characteristic: 1. Intelligent robotic arms replace human hands, resist corrosion and high temperature, automatically grab and transfer samples, add reagents, and complete the "digestion titration" process automatically. Machine vision replaces human eyes, and automatically judges the titration end point based on color changes; 2. Multiple independent channels for boiling water bath heating, with constant water bath temperature and constant liquid volume without loss; 3. Constant temperature titration, using imported color sensors for endpoint determination, not affected by sample color, turbidity, impurities, etc; 4. Automatic metering of various reagents during operation, and liquid shortage warning alarm to remind users to ensure effective operation of the experiment; 5. Each reagent is added using an independent injection pump mechanism, which is accurate without calibration and cross contamination; 6. The instrument testing process and reagents used are completely consistent with traditional manual methods; 7. Avoiding direct contact between the operator and strong oxidizing agents such as sulfuric acid, potassium permanganate, and high-temperature media; 8. Automatic cleaning pipeline, using imported Teflon pipeline, resistant to acid, alkali, and corrosion; 9. Real-time display of residual reagent quantity, reminding to add reagent; 10. M meets the requirements of GB11892-89 and GB/T5750.7-2006; 11. Fully automatic integration technology, "one button detection", unattended, and direct output of analysis results. Technical parameters: Detection limit: detection limit<0.05mg/L; Precision: RSD ＜ 3.0% (glucose standard solution with potassium permanganate value of 3.0 mg/L, n=7); Determination range: Determination range of permanganate index (CODMn) (without dilution, when sampling amount is 100mL), 0-5.0mg/L; Measurement speed: ≤ 6 min/sample (continuous measurement); Sample size: 100ml; Titration resolution: 0.01 mL; Number of water bath channels: 6 channels; Thermostatic titration Temperature control range: room temperature - 100 ℃; Temperature control accuracy of constant temperature titration: ± 0.1 ℃;
Introduction: Permanganate index, also known as oxygen consumption, also known as chemical oxygen demand (manganese method), is expressed in CODMn. It refers to using potassium permanganate as an oxidant to oxidize reducing substances in water under certain conditions, converting the amount of potassium permanganate consumed into oxygen (O2, mg/L). Reducing substances in water include inorganic and organic substances, mainly organic substances. Therefore, oxygen consumption can indirectly reflect the degree of organic pollution in water, and is a comprehensive indicator for evaluating the total amount of organic pollution in water.
