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Antec Leyden has developed an integrated system solution for the analysis
of resveratrol, epicatechin, quercetin and other polyphenols in wine
and food products. The system uses a gradient LC system to optimise
separation. Polyphenols
- Excellent reproducibility and linearity
- Micro LC (2 mm) to reduce solvent consumption and
waste
- Gradient HPLC for analysis in complex matrix
Fig. 1. Chromatogram of 10X diluted
Santa Digna cabernet sauvignon 2003, Chile; 1=
Myricetin, 2= trans-Resveratrol, 3= Quercetin, 4=
cis-Resveratrol, 5= Keampferol, EC= Epicatechin,
EGC=epigallocatechin.
Table 1. System Solution for polyphenols in wine
and food products
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Part no.
|
Description |
| 180.0094A |
ALEXYS
Polyphenols |
For the analysis of polyphenols in wine and food products a flowcell with glassy carbon electrode and HyREF was
used. The HyREF is completely
maintenance free, and compatible with high modifier percentages. The
mobile phase contains up to 25% acetonitrile, therefore a 2mm column
has been used at a flow rate of 200 uL/min which results in less
chemical waste. The ALEXYS system comprises the following parts:
- AS 110 autosampler, cool
- LC 110 HPLC pump (2)
- OR 110 organiser rack
- Clarity data acquisition software
- DECADE II electrochemical detector
- Flow cell with GC WE, HyREF
- 216-006 -
Resveratrol, epicatechin, quercetin and other polyphenols in wine
and food products
|
ALEXYS Polyphenols
The system uses
gradient HPLC for best resolution in complex matrix.
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