Nitrogen, Ammonia TNT, 0,02 - 2,50 mg/L NH3-N

Description

Cuvette tests TNT 2604545 for the determination of ammonium-nitrogen from Hach. Used for water analysis and wastewater monitoring. Cuvette test (Ø 16 mm) completely equipped with all reagents, optimised for reliable measuring results and easy handling.

Parameter: Ammonia.

Special remarks: 16 mm TNT products can be evaluated on DR900 only.

Summary of method: Ammonia compounds combine with chlorine to form monochloramine. Monochloramine reacts with salicylate to form 5-aminosalicylate. The 5‑aminosalicylate is oxidized in the presence of a sodium nitroprusside catalyst to form a blue colored compound. The blue color is masked by the yellow color from the excess reagent present to give a green-colored solution. The measurement wavelength is 655 nm for spectrophotometers or 610 nm for colorimeters.