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1.16971

Supelco

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

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

Related Categories

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

Pictograms

Exclamation mark
GHS07

Signal Word

Warning

Hazard Statements

H319

Hazard Classifications

Eye Irrit. 2

Storage Class Code

11 - Combustible Solids

WGK

WGK 2

Certificates of Analysis (COA)

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