Direct Analysis of Red Wine Using Ultra-Fast Chromatography and High Resolution Mass Spectrometry

Instrument Type: LCMSMS

Red wine is a very complex mixture and a rich source of beneficial anti-oxidants. Identification and quantitation of these natural products is challenging. Ultra High Pressure Liquid Chromatography (U-HPLC) coupled to the Thermo Scientific LTQ Orbitrap XL mass spectrometer was used for analysis of French red wine, which enabled simultaneous detection and relative quantitation of the wine's anti-oxidant constituents.

Determination of High Sugar Concentrations in a Malbec Wine Sample Using a Compact Ion Chromatography System

Instrument Type: IC

This record demonstrates the determinations of glucose in a 100-fold diluted Malbec wine sample by HPAE-PAD. Typically samples with g/L concentrations require > 10,000-fold dilutions to remain in the linear range of the very sensitive HPAE-PAD technique. However, this method, demonstrated on the Integrion RFIC system, uses a 0.4 µL internal injection loop with the High Concentration Carbohydrate Analysis Kit to extend the linearity from low mg/L to g/L concentrations. A wood hydrolysate application using this technique is attached for reference.

A simple gradient method for the analysis of resveratrol in red wine

Instrument Type: HPLC

The Thermo Scientific UltiMate 3000 HPLC system is applied for the analysis of resveratrol in red wine. The separation is performed on a Thermo Scientific Acclaim 120 C18 column, with UV detection at 310 nm.

Improved separation of resveratrol and related compounds in red wine using a Thermo Scientific Acclaim PolarAdvantage II (PA2) HPLC column

Instrument Type: HPLC

The Thermo Scientific UltiMate 3000 RSLC system is applied for the analysis of resveratrol and related compounds in red wine. The separation is performed on a Thermo Scientific Acclaim PolarAdvantage II (PA2) HPLC column, with UV detection at 310 nm.