Determination of TPI - Total Poliphenols Index in wine and must
The polyphenols are a very broad class of compounds whose electronic spectra have an absorption peack at 280 nm. The photometric reading at 280 nm is then proportional to the amount of the polyphenols present in wine or must sample.
Method
Test Principle
The wine sample is dissolved in an appropriate solvent and the absorbance of the solution is read at 280 nm.
Calibration curve
The calibration curve of CDR WineLab®, obtained using reference methods, confirms the excellent linearity of the system over the whole testing range.
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Reagent test kits
Measuring Range
| Analyses | Measuring range | Resolution | Repeatability |
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The Analyzer for process and quality control in winemaking
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)