NANOCOLOR® total Nitrogen TNb 22
Photometric determination of total nitrogen
Oxidative decomposition in the heating block with subsequent interference compensation and photometric determination with 2,6-dimethylphenol in sulphuric acid / phosphoric acid mixture.
All organic and inorganic nitrogen containing
substances are oxidised to nitrate in acidic solution. In acidic solution nitrate ions react with 2,6-dimethylphenol to form 4-nitro-2,6-dimethylphenol, which can be evaluated photometrically.
Data and ordering information
REF 985 083
Type tube test 0-83
Range 0.5 – 22.0 mg/l N
Sufficient for 20 determinations
Shelf life at least 1 year
Sea water suitability no
