CDR DrinkLab is a quick, reliable and easy analysis system for the quality and process control of the beverage sector

Determination of Ascorbic Acid in Soft Drinks

Ascorbic acid is added to fruit juices to restore nutritional values lost during processing. It helps maintain the color of the product and ensures stability thanks to its antioxidant properties.

Method

Sample treatment

Degas using the ultrasonic bath (code 222062) before taking the sample.

Principle of the test

Ascorbic acid is brought into contact with a colored complex in an alcoholic solution and oxidizes, decolorizing the complex. The decolorization, measured at 520 nm (end-point), is directly proportional to the concentration of ascorbic acid in the sample. The result is expressed in ppm.

Calibration curve

The calibration curve of the CDR DrinkLab system, carried out using HPLC as a reference method, confirmed excellent linearity of the system throughout the measurement range.

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Reagent test Kits

Measuring range

AnalysesMeasuring rangeResolutionRepeatability

The perfect system for you

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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)