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pH Test

reflectometric, pH range 1.0-5.0, for use with REFLECTOQUANT®

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pH chemical test strips, pH test strip for instrument reader


refill: no

Quality Level

pH range



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

detection method


storage temp.


General description

In water analysis the pH value plays a very important role in how other substances behave. The test can be used for monitoring the pH value in aqueous solutions, beverages, e.g. wine, after dilution and food after sample pretreatment. The Reflectoquant pH tests are suited for all media in environmental analysis and in industrial in-process controls. The reaction zones of the test strip change color depending on the pH. The responsible indicator is chemically bound to the zones and hence does not bleed. The resulting color is evaluated reflectometrically on the RQflex. For tests for other parameters that require a specific pH range of the sample (e.g. Spectroquant, see instructions of use), we recommend the use of Reflectoquant or the semi-quantitative MQuant pH test strips as pre-test.
Method: reflectometric with test strips pH 1.0 - 5.0 Reflectoquant®

Analysis Note

function control: conforms
- standard 1:
1.2 - 1.8
- standard 2: 2.7 - 3.3
- standard 3: 4.2 - 4.8

Legal Information

REFLECTOQUANT is a registered trademark of Merck KGaA, Darmstadt, Germany
RQFLEX is a registered trademark of Merck KGaA, Darmstadt, Germany

Storage Class Code

11 - Combustible Solids



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An easy-to-use, economical, and smartphone-based reliable pH determination of milk and milk products using the MQuant® pH test strips and the MQuant® StripScan App.

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

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