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

中文翻译：

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原材料的原产地分析证明

越来越多的公众兴趣是要获取有关用于制造日常生活用品的原材料的来源的信息，这触发了概念的发展，以提高原材料供应链的透明度。原材料的原产地分析证明（APO）可以通过提供有关特定原材料装运原产地的证据来支持这些透明度概念。对于宝石，TTT（钽，锡，钨）矿物等多种原材料，已经开发了APO。识别不同来源的特征，从可靠的参考样本中获得这些特征的数据库以及适用于设想的应用场景的数据评估策略是APO方法的关键方面。在此，将概述针对不同原材料和应用案例开发的APO方法。