1.16973

Nitrite Test Strips, reflectometric

0.5-25.0 mg/L (NO₂⁻), REFLECTOQUANT^®, for use with RQflex^® 20

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

Properties

• Product Name: Nitrite Test, reflectometric, 0.5-25.0 mg/L (NO₂^-), for use with REFLECTOQUANT^®
• description: quantitative
• Quality Level: 100
• specific analyte(s): nitrite
• reaction suitability: reaction type: Griess reaction
• measuring range: 0.5-25.0 mg/L (NO₂^-)
• application(s): aquaculture; food testing; seawater; wastewater
• compatibility: RQflex^® 20, for use with REFLECTOQUANT^®
• detection method: reflectometric
• storage temp.: 2-8°C

Description

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^® 20. 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.

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

Other Notes

Replaces: 16973-1; 16973

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
• signalword: Warning
• hcodes: H319
• pcodes: P264 - P280 - P305 + P351 + P338 - P337 + P313
• Hazard Classifications: Eye Irrit. 2
• Storage Class: 11 - Combustible Solids
• wgk: WGK 2