Sigma-Aldrich Ammonium Test Reflectometr

Description

quantitative

Quality Level

100

Specific Analyte(S)

ammonium

Measuring Range

5.0-20.0 mg/L (NH₄ ⁺)

Compatibility

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

Detection Method

reflectometric

Storage Temp.

2-8°C

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General Description

Method: Reflectometric with test strips and reagents, 5.0 - 20.0 mg/L (NH₄ ⁺), Reflectoquant^®

The Reflectoquant^®Ammonium test includes test strips and all necessary additional reagents and is suitable for determination potentially harmful pollution in surface and ground water, which are caused by ammonium compounds. Depending on the pH level ammonia is formed, which is a potent toxin for fish. In agriculture the Reflectoquant^®test strips can be used to measure the ammonium nitrogen content of various types of manure and compost after sample preparation. Ammonium ions react with a chlorinating agent to form monochloramine. This in turn reacts with a phenol compound to form a blue indophenol derivative that is determined reflectometrically on the RQflex^®. For pre-testing a sample in an economic and quick way to estimate the ammonium concentration and a possible dilution factor prior to using this quantitative method we recommend our semi-quantitative MQuant^®test strips for ammonium. Further quantitative determination methods can be found with our Spectroquant^®tests.

Application

• Development of celiac-safe foods: Explores the role of zinc sulfate in preventing gluten deamidation, an innovative approach to producing celiac-safe foods, showcasing its utility in food science and human health (Engström et al., 2024).

Analysis Note

function control: conforms
Assay
- standard 1:
6.5 - 8.5 mg/l
- standard 2: 9.0 - 13.0 mg/l
- standard 3: 13.5 - 17.5 mg/lMQUANT is a registered trademark of Merck KGaA, Darmstadt, GermanyREFLECTOQUANT is a registered trademark of Merck KGaA, Darmstadt, GermanyRQFLEX is a registered trademark of Merck KGaA, Darmstadt, GermanySPECTROQUANT is a registered trademark of Merck KGaA, Darmstadt, GermanyGHS05,GHS09P273 - P280 - P301 + P330 + P331 - P305 + P351 + P338 - P308 + P311