Presentation on theme: "Analytic methodPiecesParameters, symbol and unit of measure Parameters for detecting fraud 13 C/ 12 C-IRMSethanol, sugar acids, glycerol 13 C/ 12 C(‰)"— Presentation transcript:
Analytic methodPiecesParameters, symbol and unit of measure Parameters for detecting fraud 13 C/ 12 C-IRMSethanol, sugar acids, glycerol 13 C/ 12 C(‰) vsPDB Botanical origin of sugar from wine (detect sugar mixture C 3 and C 4 plant) and honey, addition of glycerol and non- grape alcohols from wines, year product. 2 H/ 1 H-IRMSWater 2 H/ 1 H (‰) vsSMOW Global content deuterium from water, geographical origin. 18 O/ 16 O-IRMSWater extract from wine 18 O/ 16 O (‰) vsSMOW Geographical origin, year product, water addition in wines and fruit juices. Multi-isotope analysis, determination of isotope ratios by Continuous Flow Isotope Ratio Mass Spectrometry CF-IRMS – a powerful analytical method used to authenticate both raw materials and finished products in the food industry and by national food control laboratories.
Wine: multi-component and multi- isotopic analysis
CF-IRMS DELTA V PLUS The CF-IRMS DELTA V PLUS is a new generation of Isotope Ratio MS, more sensitive while delivering excellent linearity and stability, more versatile and more rugged than predecessors. The conversion of any type of organic or inorganic compound into simple gases is the basic principle for IRMS. A wide range of sample preparation devices and interfaces are available as inlets: I. ConFlo III Universal Interface allows the connection of a wide variety of Elemental Analyzers to the Delta V including Dumas combustion elemental analyzers for 13 C/ 12 C, 15 N/ 14 N, quantitative high temperature carbon reduction elemental analyzers for D/H and 18 O/ 16 O (Flash EA/TC). ) II. The GasBench II (18O/16O – equilibration water content in wine) is a flexible continuous flow preparation device and inlet system with Repetitive loop injection of gases. Is supported by a robotic autosampler and using septum-sea led sample vials.