Automated Measurement of 13C for Identifying and Classifying Edible Oils A fast screening method distinguishes between oils derived from different plant species and can be used to test for product adulteration. In addition, data from the same product (olive oil), harvested in different regions, is presented. Keywords: Material: Edible oils, vegetable oils, olive oil, corn, soybean, sesame Process: Stable isotopes, 13C, delta-13C Picarro TOC-CRDS同位素碳分析儀 Picarro 13C+D CM-CRDS碳?xì)渫凰胤治鰞x