Total Cadmium Water Quality Online Monitor

It is based on the colorimetric method for measuring the total cadmium content in water. After digestion, the sample is converted into divalent cadmium ions. These ions react with the color reagent in an alkaline environment to form a colored complex. The absorbance of this complex is measured at a certain wavelength, and the concentration of cadmium is calculated using the correction factor stored in the analyzer.

Total Arsenic Water Quality Online Monitor

It is based on the colorimetric method for measuring the total arsenic content in water. The analyzer operates by using a specific arsenic color reagent that reacts with arsenic ions in an acidic medium to form a stable complex. This complex absorbs light at a specific wavelength. By measuring its absorbance, the arsenic content in the water sample can be calculated. This method has good resistance to interference. Common metal ions in water do not interfere with the determination, especially phosphorus and silicon.

Hexavalent Chromium Water Quality Online Monitor

Under acidic conditions, hexavalent chromium reacts with the color reagent diphenylcarbazide to form a stable colored compound. This compound absorbs light at a specific wavelength. By measuring its absorbance, the content of hexavalent chromium in the water sample can be calculated. The method has excellent resistance to interference. Low concentrations of metal ions (such as iron, copper, and lead) present in the sample do not interfere with the measurement.

Total Copper Water Quality Online Monitor

After undergoing digestion, redox, and other reactions, a masking agent is added to the water sample to mask certain interfering factors. A color reagent is then added to form a stable colored complex. The absorbance of this complex at a specific wavelength is measured, and the concentration of copper in the water sample is calculated based on this measurement.

Total Nickel Water Quality Online Monitor

After the water sample is digested, the nickel ions in the sample react with the color reagent to form a colored, stable, soluble complex. The concentration of nickel is then calculated through photometric measurement at a specific wavelength and computational processing.

Total Chromium Water Quality Online Monitor

After digestion, all trivalent chromium in the sample is oxidized to hexavalent chromium. It reacts with the color reagent under acidic conditions to form a stable colored compound, which is then spectrophotometrically measured at its specific absorption wavelength. The total chromium content in the water sample can be calculated by measuring its absorbance.