ICP-MS LASER-ABLATION OAK WOOD METALS WOO D STANDARD SEMIQUANTITATIVEANALYSIS

The semi-quantitative analysis by LA-ICP-MS on oak wood samples requir es a response calibration with wood standard and an internal standard of wood. We obtained a standard of wood by mineralisation in nitric ac id and hydrogen peroxide. C-13 is a relative constant concentration ca rbon isotope and is used as internal standard of wood. The elemental c oncentrations are determined in order to find the geographical origin of wood and for enology to quantify the catalytic effect on low oxidat ion conditions during aging of wine.