Determination of Phosphoric Acid in Soft Drinks
Phosphoric Acid (H₃PO₄) plays a key role in soft drinks. It is used to lower the pH of these beverages, helping to balance the sweetness of sugar or sweeteners and to enhance the overall flavor profile. Measuring the phosphoric acid content makes it possible to maintain a consistent taste profile, ensuring that each production batch presents the same organoleptic characteristics, while also preserving the quality and shelf-life of the beverage.
Method
Sample treatment
Degas using the ultrasonic bath (code 222062) before taking the sample.
Principle of the test
Through a complexation reaction, the amount of phosphoric acid is determined by its reaction with a salt dissolved in solution in the presence of a reducing agent. The reaction develops an emerald green color, whose intensity, measured spectrophotometrically, is directly proportional to the concentration of phosphoric acid in the sample.
Calibration curve
The calibration curve, obtained using reference methods, confirms the excellent linearity of the system across the entire test range.
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Reagent test Kits
Code*301415: 10 tests
Measuring range
| Analyses | Measuring range | Resolution | Repeatability |
|---|---|---|---|
| Phosphoric acid | 10 - 600 mg/L | 1 mg/L | 4 mg/L |
The perfect system for you
CDR DrinkLab
Complete analysis panel, supplied already configured
Up to 16 determinations simultaneously
Possibility of carrying out analyses of the same sample
Integrated printer
Full connections (LAN - USB - Bluetooth barcode/QR code reader)