1.16971
Nitrate Test
reflectometric, 5-225 mg/L (NO3-), for use with REFLECTOQUANT®
Synonym(s):
Nitrate chemical test strips, Nitrate test strip for instrument reader
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About This Item
UNSPSC Code:
41116116
Recommended Products
description
quantitative
Quality Level
specific analyte(s)
nitrate
reaction suitability
reaction type: Griess reaction
measuring range
5-225 mg/L (NO3-)
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 5 - 225 mg/l NO₃⁻ Reflectoquant®
The Reflectoquant Nitrate test strips can be used for the rapid determination of the nitrate content in water and also with fruit and vegetables to help decide whether a given delivery batch can be released for use in a specific product (e.g. baby foods). On the strip nitrate ions are reduced to nitrite ions by a reducing agent. In the presence of an acidic buffer, these nitrite ions react with an aromatic amine to form a diazonium salt, which in turn reacts with N-(1naphthyl)-ethylene-diamine to form a red-violet azo dye that is determined reflectometrically on the RQflex. For pre-testing a sample in an economic and quick way to check for nitrite interferences or to estimate the nitrate concentration and a possible dilution factor prior to using this quantitative method we recommend our semi-quantitative MQuant test strips for nitrate and nitrite. Further quantitative determination methods can be found with our Spectroquant tests.
Linkage
Replaces: 16971; 16971-1
Analysis Note
function control: conforms
Assay
- standard 1:
22 - 28 mg/l
- standard 2: 90 - 110 mg/l
- standard 3: 180 - 220 mg/l
Assay
- standard 1:
22 - 28 mg/l
- standard 2: 90 - 110 mg/l
- standard 3: 180 - 220 mg/l
Legal Information
REFLECTOQUANT is a registered trademark of Merck KGaA, Darmstadt, Germany
RQFLEX is a registered trademark of Merck KGaA, Darmstadt, Germany
Signal Word
Warning
Hazard Statements
Precautionary Statements
Hazard Classifications
Eye Irrit. 2
Storage Class Code
11 - Combustible Solids
WGK
WGK 2
Certificates of Analysis (COA)
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