$1.00
FOR DETERMINATION OF
Nitrite
RANGE/SENSITIVITY
0.05 ∙ 0.10 ∙ 0.25 ∙ 0.5 ∙ 1.0 mg/L NO2–
NUMBER OF TESTS
200
TEST METHOD
Visual Test Kits
MANUFACTURER
Macherey-Nagel
ORDER CODE
935066
Description
The VISOCOLOR® alpha Nitrite Test Kit is for the 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 colored azo dye. Organic colloids, chlorine, humic acids and colored heavy metal ions interfere.
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.
Suitable for testing sea water.
