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    ชุดทดสอบไนโตรเจน Tube Test (3 – 60 mg/l N)

    NANOCOLOR® total Nitrogen TNb 60

    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 985 092
    Type tube test 0-92
    Range 3 – 60 mg/l N
    Sufficient for 20 determinations
    Shelf life at least 1 year
    Sea water suitability no

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