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1.08025

Supelco

Nitrite Test

colorimetric, 0.025-0.5 mg/L (NO2-), for use with MQUANT®

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specific analyte(s)

nitrite

Quality Level

measuring range

0.025-0.5 mg/L (NO2-)

compatibility

for use with MQUANT®

detection method

colorimetric

storage temp.

15-25°C

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Nitrite Test colorimetric, 0.025-0.5 mg/L (NO2-), for use with MQUANT®

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Nitrite Test colorimetric, 0.1-3 g/L (NO2-), for use with MQuant® StripScan App, MQuant®

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detection method

colorimetric

detection method

colorimetric

detection method

colorimetric

detection method

colorimetric

measuring range

0.025-0.5 mg/L (NO2-)

measuring range

0.1-10 mg/L (NO2-)

measuring range

0.03-0.6 mg/L (NO2-N), 0.1-2.0 mg/L (NO2-)

measuring range

0.1-3 g/L (NO2-)

microbialanalysis
microbialanalysis

microbialanalysis
microbialanalysis

microbialanalysis
microbialanalysis

microbialanalysis
microbialanalysis

compatibility

for use with MQUANT®

compatibility

for use with MCOLORTEST®

compatibility

for use with MCOLORTEST®

compatibility

for use with MQuant® StripScan App

storage temp.

15-25°C

storage temp.

15-25°C

storage temp.

15-25°C

storage temp.

2-8°C

General description

Method: colorimetric with color card and sliding comparator 0.025 - 0.050 - 0.075 - 0.10 - 0.15 - 0.2 - 0.3 - 0.5 mg/l NO₂⁻ MQuant®

Analysis Note

Application testconforms
This MQuant® Nitrite 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 analyzed without further preparation. Nitrite is naturally present in soil, water and food and must be closely monitored in drinking and ground water as well as in process, waste, or aquarium water.
The test can be used in:
  • Groundwater and surface water, seawater
  • Drinking water and mineral water
  • Aquarium water (freshwater and seawater), waters from aquaculture
  • Food after appropriate sample pretreatment
  • Soils and fertilizers after appropriate sample pretreatment
  • Boiler and boiler feed water, cooling water
  • Wastewater
  • Electroplating wastewater

Method
In acidic solution nitrite ions react with sulfanilic acid to form a diazonium salt, which in turn reacts with N-(1-naphthyl)ethylenediamine dihydrochloride to form a red-violet azo dye. The nitrite concentration is measured semiquantitatively by allocating the color to a value on a reference scale.

Legal Information

MCOLORTEST is a registered trademark of Merck KGaA, Darmstadt, Germany
MQUANT is a registered trademark of Merck KGaA, Darmstadt, Germany

Pictograms

Corrosion

Signal Word

Warning

Hazard Statements

Hazard Classifications

Eye Irrit. 2 - Met. Corr. 1 - Skin Irrit. 2

Storage Class Code

8A - Combustible, corrosive hazardous materials

WGK

WGK 3


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