Determination of Total Acidity in vinegar
The total acidity of the vinegar is the sum of its titratable acidities when it is titrated to pH 7 against a standard alkaline solution. It is a very important quality parameter for vinegar.
Method
Test Principle
The total acidity reacts with a proper chromogen to decolorize it. The magnitude of discoloration, measured at 620 nm, is proportional to the total acidity value in the sample.
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Calibration curve
The calibration curve showed a good linearity of the system on the whole measuring range, compared to reference method.
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Reagent test Kits
Measuring range
Analyses | Measuring range | Resolution | Repeatability |
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The Analyzers for quality control in vinegar production
CDR WineLab®
- 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)
CDR WineLab® Jr
- Partial analysis panel, supplied configured with 3 analyses of your choice, implementable
- Up to 3 determinations simultaneously
- Wireless connection to external printer
- USB connections