Water analysis test strip

calciummagnesiumfree chlorine

This product can be used for the detection of Nitrate, Nitrite, Free chlorine, Total chlorine, Bromine, Hydrogen peroxide, Total hardness, Carbonate, Cyanuric acid, pH, Copper, Zinc, Mercury, Tin, Beryllium, Aluminium in water (drinking water and its source, well water, surface water, spring water, mineral water, etc.). Principle: Nitrate: A reducing agent can reduce nitrate in water to form nitrite, which, along with the existing nitrite in water, diazotized with N-(1-Naphthyl) ethylenediamine, and then react with sulfonamide to produce a purple azo dye. Nitrite: Under acidic conditions, nitrite in water is diazotized with N-(1-Naphthyl) ethylenediamine, and then react with sulfonamide to produce a purple azo dye. Free chlorine: N, N-diethyl-p-phenylenediamine react rapidly with free chlorine in water to form a red dye, and the color depth is proportional to the content of Free chlorine. Total chlorine: Oxidizing chlorides and Cl2 react with Redox reagent to produce a blue dye, and the color depth is proportional to the total oxidizing chlorine content. Bromine: Bromine react with N, N-diethyl-p-phenylenediamine to produce a red dye, and the color depth is proportional to Bromine content. Hydrogen peroxide: Hydrogen peroxide react with tetramethylbenzidine under existing of peroxidase and produce a blue dye. Total hardness: Calcium and Magnesium ions in water react with mixed indicators to form a purple chelates. Carbonate: Carbonate react with complex indicators to form a blue dye. Cyanuric acid: Cyanuric acid react with complex indicator to produce a purple dye and the depth of color is proportional to the concentration of Cyanuric acid.