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    ชุดทดสอบไนไตรท์ในน้ำ (0.05 -1.0 ppm.)

    VISOCOLOR® alpha Nitrite
    Colorimetric determination of nitrite

    In acidic solution sulphanilic acid or sulphanilamide are diazotised with nitrite. The diazonium salt is then coupled with an aromatic amine, forming an intensely coloured azo dye.
    Organic colloids, chlorine, humic acids and coloured heavy metal ions interfere.

    Data and ordering information
    REF 935 066
    Type colorimetric test kit
    Range 0.05 · 0.10 · 0.25 · 0.5 · 1.0 mg/l NO2
    Sufficient for 200
    Shelf life at least 1.5 years
    Sea water suitability yes
    Detectable with PF-12 no

    In surface waters nitrite ions are generally present in low concentrations. Their presence in ground water is less common. In waste waters nitrite frequently occurs, even in fairly high concentrations.


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    Klong 1, Klong Luang, Pathumthani 12120 Thailand. 

    Tel.  02-191-3928 Fax 02-191-3929

    For more information please contact 081-847-6768 (Ms. Nareerat) IDLine: @alltestkit

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