WebIn this colorimetric method, use for drinking water, wastewater and seawater, nitrate is reduced to nitrite with hydrazine sulfate. The diazonium reagents then react with the nitrite to produce a red color. The intensity of the color is proportional to the original amount of nitrate and nitrite present in the sample. WebHach’s solutions are designed to make drinking water analysis better, from plant to lab to field, giving you total confidence in the quality of your water. Hach covers all the drinking …
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