Molybdate Test Refills

Molybdate Test Kits

Nitrate is the most completely oxidized form of nitrogen. It is formed during the final stages of biological decomposition, either in wastewater treatment facilities or in natural water supplies. Low-level nitrate concentrations may be present in natural waters. However, a maximum of 10-ppm nitrate-nitrogen is allowed in drinking water supplies. This method is applicable to drinking and surface waters, as well as domestic and industrial wastes. Nitrate is reduced to nitrite using cadmium as the reducing agent. The resulting nitrite concentration is then determined colorimetrically. Nitrite...