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Ammonium in Manure

Prove InstrumentsPhotometric determination using the indophenol blue method

Sample Preparation

Folded filter
Membrane filter with 0.45 μm pore diameter

Put 10 ml of the sample into a 1000-ml volumetric flask, fill up to volume with water for analysis and mix. After the solid parts have settled, take 10 ml of the supernatant solution and, mixed with a spatula - tipfull of charcoal activated for soil tests, put it into a 50-ml volumetric flask and fill up to volume with water for analysis. Before determination filter the charcoal through a folded filter. In case the solution remains cloudy, filter again through a membrane filter.


Determine with the below mentioned test kits.


Ammonium content in mg/kg NH4 = analysis value in mg/l NH4 x 2000



Product 114544 is not compatible with Move 100.