Determination of TPI - Total Poliphenols Index

CDR WineLab analysis system fast, simple to use and reliable for determining multiple parameters in wine and mustThe polyphenols are a very broad class of compounds whose electronic spectra have an absorption peack at 280nm. The photometric reading at 280nm is then proportional to the amount of the polyphenols present in wine or must sample.

The Analyzers CDR WineLab® for determining Total Polyphenols Index in Wine and Must

The system is supplied pre-calibrated and ready for use.
Results are expressed in accordance with the reference method.
It is also possible to standardize the system using samples with a known titration.
The reagents have a shelf-life untill 18 months
The analytical methods are simple: the system does not require an equipped laboratory or skilled staff.

  CDR WineLab wine analyzerCDR WINELAB® CDR WineLab<sup>®</sup> wine analyzer Junior VersionCDR WINELAB® JUNIOR
Analyses Fermentable Sugars
Total Acidity
Acetic Acid
L-Lactic Acid
L-Malic Acid
Malolactic Fermentation
Alcohol
Free sulfur dioxide (Free SO2)
Total sulfur dioxide (Total SO2)
pH
Yeast assimilable nitrogen (YAN)
Gluconic Acid
Glycerol
Polyphenols
TPI – Total Polyphenols Index
Acetaldehyde (Ethanal)
Anthocyanins
Catechins
Colour intensity and tonality
Copper
Configuration with tailored panel of analyses
Simultaneous Sample Analyses 16 3
Multiple Analyses on a Sample si

Method

Test type: End Point.
Testing time: one test 1 minute.
Test sessions with several samples are possible, up to a maximum of 16.

Calibration curve

The calibration curve of CDR WineLab®, obtained using reference methods, confirms the excellent linearity of the system over the whole testing range.

Correlation to the reference method of Total Polyphenols Index analysis with CDR WineLab in wine and must

Test Principle

Photometric reading at 280 nm

Reagent test Kits

The reagents are packaged in foil pouches containing 10 tubes useful to perform 10 analyses.

This is the minimum package that allows the use of CDR systems even to those who need to make a few analyses, thus not wasting reagents.

There are also boxes of 100 tests, however, packaged in 10 bags of 10 tubes containing the reagent.

Code. *300495: 10 tests 

Code. *300505: 100 tests (10 packages of 10 tests)

The reagents have a shelf-life of 12 months

 

Processing – Sample Volume – Measuring Range direction

Use the wine as is or centrifuged must.

Test Measuring range
mg/L of gallic acid)
Sample volume Resolution Repeatability
TPI 2 – 100 10 µL 1 0,4

Reagent developed by CDR S.r.l - ISO 9001 certified company

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Total Polyphenols Index was last modified: May 23rd, 2017 by CDR s.r.l.