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Description:
The nitrate reduction test is a two-step procedure. Sulfanic acid (Nitrate Reagent A) is added to acidify the medium and then naphthylamine (Nitrate Reagent B) is added which re acts with nitrites to procedure a red color. Some orgasims reduce nitrates to free nitrogen or ammonia. If no color develop upon the addition of reagents, the orgasims has either reduced the nitrate free nitrogen or it has no attacked the nitrate at all. A red color development after the addition of zinc dust demonstrates that nitrate are present, indicating a negative nitrate reduction test. No formation of a red color after the addition of zinc dust indicates that the orgasim reduced the nitrate to free n itrogen or ammonia and is considered a positive nitrate.
Specification:
10ml