A chlorine dioxide analyzer is an analytical instrument used for the quantitative detection of chlorine dioxide concentration in water. It is widely used in drinking water, domestic water, surface water, and industrial water applications, including drinking water disinfection monitoring (such as treated water from water treatment plants and water at the end of pipe networks), industrial process water disinfection (such as cleaning water in the food and beverage industry and circulating cooling water systems), and online monitoring of chlorine dioxide concentration in hospital wastewater and swimming pool water.
Different models of the instrument employ photoelectric colorimetry, DPD photometry, electrochemical methods, or selective membrane sensors, featuring high measurement accuracy, ease of operation, and portability. Some instruments comply with national standards GB/T 5750-2006 or GB/T 5750.11-2006 and are suitable for rapid laboratory or field testing. Key technical specifications vary by model; for example, the measurement range can reach 0.010-25.000 mg/L, some models have a minimum detection limit of 10 ppb, and accuracy or precision can reach ±3% or 5%.
