HMA-2000 series heavy metal online analyzer adopts the principle of anodic dissolution voltammetry detection, and monitoring factors cover lead, cadmium, zinc, mercury, arsenic, etc. It is suitable for online monitoring of surface water, drinking water, municipal sewage, industrial process water, pollution source wastewater discharge, etc.
This analyzer adopts the principle of anodic dissolution voltammetry detection. The pre-treated water sample is mixed with electrolyte in the detection cell after high-temperature and high-pressure decomposition.
Then a reduction potential is applied to the electrode to enrich the metal ions to be measured in the mixture on the working electrode. Then the applied potential is continuously changed in a step-pulse manner to dissolve the metal elements enriched on the working electrode. The current signal intensity is detected when dissolving. According to the dissolution, the concentration of the measured component is obtained by converting the peak intensity of the current signal to the concentration of the measured component.
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