Food Authenticity Testing Using Strontium Isotope Ratios

This technical report outlines the methodology for food authenticity testing through the determination of strontium isotope ratios in wine and cereals using ICP-MS technology. The document describes the importance of verifying the geographical origin of food products to ensure consumer safety and maintain quality standards. It details the analytical techniques employed, including the use of PlasmaQuant MS Elite and MC-ICP-MS for precise measurements of the 87Sr/86Sr isotope ratio. The report emphasizes the significance of achieving high precision in isotope ratio determination, which is crucial for distinguishing between products from different origins. It also discusses the sample preparation process, including digestion and matrix separation, to ensure accurate isotopic analysis. The findings indicate that the PlasmaQuant MS Elite can effectively differentiate food origins, supporting the need for rigorous testing in food quality control laboratories. The report concludes with a discussion on the operational parameters and conditions necessary for optimal analysis.