Smartphone-based determination of pH after reaction with a chemically bound pH indicator
Analyze your MQuant® test strips with your smartphone for fast, convenient, and precise results. Test the simplest way to determine pH in aqueous solutions. This low-priced and easy-to-use analytical detection system provides reliable quantification of water, food & beverage samples for customers from research, industry, environment, and diagnostics.
The following application note describes the determination of coffee pH value using the MQuant® pH test strips in combination with the MQuant® StripScan App.
Special indicator dyes are covalently bound to the reagent papers, which changes the color depending on the pH value of the sample.
For analysis, follow this procedure:
Comparison with visual evaluation, Reflectoquant® pH test (1.16996), and pH electrode:
Note: Result graduation provided by MQuant® StripScan is identical to graduation on the test strip package. (The results above were obtained using the previous app version with its graduations of 0.5 pH units)
The MQuant® pH strip in combination with the MQuant® StripScan app is a quick and easy way to analyze the pH value of coffee. The measured values are comparable to those measured with the Reflectoquant® pH test (reflectometry) and the pH electrode.
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