1.16973
Nitrite Test
reflectometric, 0.5-25.0 mg/L (NO2-), for use with REFLECTOQUANT®
Synonym(s):
Nitrite chemical test strips, Nitrite test strip for instrument reader
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About This Item
UNSPSC Code:
41116116
Recommended Products
description
quantitative
Quality Level
specific analyte(s)
nitrite
reaction suitability
reaction type: Griess reaction
measuring range
0.5-25.0 mg/L (NO2-)
compatibility
RQflex® 10 Plus
RQflex® 10
RQflex® 20
for use with REFLECTOQUANT®
detection method
reflectometric
storage temp.
2-8°C
General description
Method: reflectometric with test strips 0.5 - 25.0 mg/l NO₂⁻ Reflectoquant®
Nitrites must be closely monitored in drinking and groundwater as well as in process, waste, or aquarium water. In farm produce and fruit juices, high nitrate concentrations affect quality and can constitute serious health risks. Nitrites are also used in additives for food products and serve as corrosion inhibitors in engine cooling systems. On the Reflectoquant Nitrite test strips, in the presence of an acidic buffer nitrite ions react with an aromatic amine to form a diazonium salt, which in turn reacts to form a red-violet dye that is determined reflectometrically on the RQflex. For pre-testing a sample in an economic and quick way to estimate the nitrite concentration and a possible dilution factor prior to using this quantitative method we recommend our semi-quantitative MQuant test strips for nitrite. Further quantitative determination methods can be found with our Spectroquant tests.
Linkage
Replaces: 16973-1; 16973
Analysis Note
function control: conforms
Assay
- standard 1:
1.8 - 2.2 mg/l
- standard 2: 9.0 - 11.0 mg/l
- standard 3: 18.0 - 22.0 mg/l
Assay
- standard 1:
1.8 - 2.2 mg/l
- standard 2: 9.0 - 11.0 mg/l
- standard 3: 18.0 - 22.0 mg/l
Legal Information
REFLECTOQUANT is a registered trademark of Merck KGaA, Darmstadt, Germany
RQFLEX is a registered trademark of Merck KGaA, Darmstadt, Germany
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Warning
hcodes
Hazard Classifications
Eye Irrit. 2
Storage Class
11 - Combustible Solids
wgk_germany
WGK 2
Certificates of Analysis (COA)
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