Nitrate Test

Кат. номер

1169710001

1.16971.0001

US11.16971/0001

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.
Method: reflectometric with test strips 5 - 225 mg/l NO Reflectoquant®
Replaces: 16971; 16971-1
function control: conforms
Assay
- standard 1:
22 - 28 mg/l
- standard 2: 90 - 110 mg/l
- standard 3: 180 - 220 mg/l
REFLECTOQUANT is a registered trademark of Merck KGaA, Darmstadt, Germany
RQFLEX is a registered trademark of Merck KGaA, Darmstadt, Germany

storage conditions	Store at +2°C to +8°C.
Quality Level	100
description	quantitative
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