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Ammonia as Nitrogen. ALS Environmental may or may not test for Ammonia as Nitrogen (CAS # 7664-41-7). Information is subject to change; please contact us for the latest available analytes for which we test.
Ammonia is a product of protein catabolism and is metabolized by the liver. Normal blood ammonia levels range from 10-40 Âµmol/L. This increases 10% with exposure to 25 ppm but is not considered harmful.