1.16971

Nitrate Test Strips, reflectometric

5-225 mg/L (NO₃⁻), REFLECTOQUANT^®

• Synonym(s): Nitrate chemical test strips, Nitrate test strip for instrument reader
• UNSPSC Code: 41116116
• NACRES: NA.24

Properties

• product name: Nitrate Test, reflectometric, 5-225 mg/L (NO₃^-), for use with REFLECTOQUANT^®
• description: quantitative
• Quality Level: 100
• 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

Description

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

Legal Information

REFLECTOQUANT is a registered trademark of Merck KGaA, Darmstadt, Germany

RQFLEX is a registered trademark of Merck KGaA, Darmstadt, Germany

Safety Information

• Pictograms: GHS07
• Signal Word: Warning
• Hazard Statements: H319
• Precautionary Statements: P264 - P280 - P305 + P351 + P338 - P337 + P313
• Hazard Classifications: Eye Irrit. 2
• Storage Class Code: 11 - Combustible Solids
• WGK: WGK 2