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1.16971

Supelco

Nitrate Test

reflectometric, 5-225 mg/L (NO3-), for use with REFLECTOQUANT®

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Synonym(s):
Nitrate chemical test strips, Nitrate test strip for instrument reader

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

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Nitrate Test reflectometric, 5-225 mg/L (NO3-), for use with REFLECTOQUANT®

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reaction suitability

reaction type: Griess reaction

reaction suitability

reaction type: Griess reaction

reaction suitability

-

reaction suitability

-

compatibility

RQflex® 10 Plus, RQflex® 20, for use with REFLECTOQUANT®

compatibility

RQflex® 10 Plus, RQflex® 20, for use with REFLECTOQUANT®

compatibility

for use with Spectroquant® Move 100, for use with Spectroquant® Nova 60 A, for use with Spectroquant® Prove 100, for use with Spectroquant® Prove 300, for use with Spectroquant® Prove 600

compatibility

for use with MQUANT®

detection method

reflectometric

detection method

reflectometric

detection method

photometric

detection method

colorimetric

description

quantitative

description

quantitative

description

-

description

-

measuring range

5-225 mg/L (NO3-)

measuring range

3-90 mg/L (NO3-)

measuring range

0.3-30.0 mg/L (NO3-N)

measuring range

5-90 mg/L (NO3-)

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

Signal Word

Warning

Hazard Statements

Hazard Classifications

Eye Irrit. 2

Storage Class Code

11 - Combustible Solids

WGK

WGK 2


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Articles

Step-by-step method describing the reflectometric determination of nitrate levels in various vegetables after reduction to nitrite and detection with Griess reagent using Reflectoquant® system and test strips.

Step-by-step method describing the reflectometric determination of nitrate in wastewater after reduction to nitrite and detection with Griess reagent using Reflectoquant® test strips and reflectometer.

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