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Probest TOC online automatic water quality monitor strictly follows the national standard of "Determination of Water Quality, Total Organic Carbon, Combustion Oxidation-Non-Dispersive Infrared Absorption Method" (HJ 501-2009). The product integrates high-precision detection, automated operation and intelligent management, which can effectively meet the monitoring needs of the whole chain from pollution source supervision to process control, and is a reliable choice to promote water environment management towards digitalization and refinement.
PCM300-TOC Total Organic Carb Quality Online Automatic Monitor
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Chromate method. Under certain conditions, add potassium dichromate and sulfuric acid mixture to react in the digestion tank, so that organic reductants in the water sample are oxidized, Cr6 + is reduced to Cr3 + in the reaction, causing the color change of the mixed solution. Detect the color change of the mixed sample by photoelectric colorimeter, and finally convert it into the oxygen content required for redox reaction, that is, the chemical oxygen demand of the tested water sample.
PCM300-CODcr Chemical Oxygen Demand Water Quality Online Automatic Monitor
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Salicylic acid optical colorimetry. The sample and the developer are fully mixed under the action of air and a chemical reaction occurs, and the concentration value of ammonia nitrogen is finally calculated according to the color change of the developer.
PCM300-NH3N Ammonia Water Quality Online Automatic Monitor
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Ammonium molybdate spectrophotometry. The aqueous sample is digested with potassium persulfate, and all the phosphorus contained in it is converted into orthophosphate. In an acidic medium, orthophosphate forms a colored complex with a developer and reducing agent. Its absorbance is measured at a specific wavelength, which is proportional to the concentration of total phosphorus.
PCM300-TP Total Phosphorus Water Quality Online Automatic Monitor
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Alkaline potassium persulfate digestion ultraviolet spectrophotometry. In the presence of potassium persulfate, the nitrogenous compounds in the water sample are oxidized into nitrate ions after full oxidation and digestion, and then the absorbance measured by ultraviolet spectrophotometry is used to calculate the total nitrogen content.
PCM300-TN Total Nitrogen Water Quality Online Automatic Monitor
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Acid potassium permanganate oxidation titration method. Potassium permanganate oxidizes the organic pollutants in the sample, and then adds the measured sodium oxalate solution to reduce the remaining potassium permanganate, and then uses potassium permanganate solution to drop back the excess sodium oxalate, judges the titration endpoint by the change of photometrology, and finally the instrument automatically calculates the permanganate index value.
PCM200-CODmn-BD Permanganate Index Online Automatic Monitor of Water Quality
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Dichromate method. Under certain conditions, the mixture of potassium dichromate and sulfuric acid is added and reacted in the digestion tank to oxidize the organic reducing substances in the water sample, and Cr6+ is reduced to Cr3+ in the reaction, causing the color change of the mixture. The change in the color of the mixed sample is detected by a photocolorimeter, and finally converted into the content of oxygen required for the redox reaction, which is the chemical oxygen demand of the measured water sample.
PCM200-CODcr Chemical Oxygen Demand Water Quality Online Automatic Monitor
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Salicylic acid optical colorimetry. The sample and the developer are fully mixed under the action of air and a chemical reaction occurs, and the concentration value of ammonia nitrogen is finally calculated according to the color change of the developer.
PCM200-NH3N Ammonia Water Quality Online Automatic Monitor
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Ammonium molybdate spectrophotometry. The aqueous sample is digested with potassium persulfate, and all the phosphorus contained in it is converted into orthophosphate. In an acidic medium, orthophosphate forms a colored complex with a developer and reducing agent. Its absorbance is measured at a specific wavelength, which is proportional to the concentration of total phosphorus.
PCM200-TP Total Phosphorus Water Quality Online Automatic Monitor
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Alkaline potassium persulfate oxidation-resorcinol method. The principle of the method is that potassium persulfate is heated to a certain temperature under alkaline conditions, so that the nitrogen element of nitrogen-containing compounds in the water sample is converted into nitrate, in this process, the organic matter is also oxidized and decomposed, nitrate and resorcinol are formed in the concentrated sulfuric acid medium, and then at the characteristic wavelength, the absorbance is measured, and the total nitrogen content is calculated according to this absorbance value.
PCM200-TN Total Nitrogen Water Quality Online Automatic Monitor
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Alkaline potassium persulfate digestion ultraviolet spectrophotometry. In the presence of potassium persulfate, the nitrogenous compounds in the water sample are oxidized into nitrate ions after full oxidation and digestion, and then their absorbance is measured by ultraviolet spectrophotometry to calculate the content of total nitrogen.
PCM200-TN-UV Total Nitrogen Water Quality Online Automatic Monitor
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Ammonium molybdate spectrophotometry. In an acidic medium, orthophosphate forms a colored complex with a developer and reducing agent. Its absorbance is measured at a specific wavelength, which is proportional to the concentration of orthophosphate.
PCM200-PO4 Orthophosphate Water Quality Online Automatic Monitoring Instrument
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