This MQuant® Ammonium test (formally MColortest®) is suitable for the colorimetric determination using the easy to use color card. The evaluation considers the untreated sample so even turbid and colored water samples can be analysed. The test measures both ammonium ions and dissolved ammonia in e.g. groundwater and surface water, seawater, drinking water and aquarium water. Ammonium nitrogen (NH4-N) occurs partly in the form of ammonium ions and partly as ammonia. A pH-dependent equilibrium exists between the two forms. Method: colorimetric, acc. to Neβler, with colour card and sliding comparator 0.5 - 1 - 2 - 3 - 5 - 7 - 10mg/L NH4+ MQuant®.
Method: Ammonium ions react with Neβler's reagent to form a yellow-brown compound. The ammonium concentration is measured semiquantitatively by allocating the color to a value on a reference scale.
The test can be used in:
- Groundwater and surface water
- Drinking water
- Wastewater
- Aquarium water, waters from aquaculture
- Boiler and boiler feed water, cooling water
- Swimming-pool water
- Soils and fertilisers after appropriate sample pretreatment
- This test is not suited for seawater
Legal Information: MQUANT is a registered trademark of Merck KGaA, Darmstadt, Germany, MCOLORTEST is a registered trademark of Merck KGaA, Darmstadt, Germany
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