Analytical Proof of Origin for Raw Materials

Growing public interest in getting information on the origin of raw materials used to manufacture goods for daily life has triggered development concepts increase transparency material supply chains. Analytical proofs (APOs) may support those by giving evidence about a specific shipment. For variety like gemstones, TTT (tantalum, tin, tungsten) minerals, and others, APOs have been developed. The identification features that distinguish different origins, databases from reliable reference samples, data evaluation strategy adopted envisaged application scenario are key aspects APO methods. Here, an overview is given methods developed cases.