Ramos Mariana F, Kinney Chad A, Coblinski João A, Fett Mauro S, Dick Deborah P, de Oliveira Camargo Flávio A
Federal University of Rio Grande do Sul, Faculty of Agronomy, Department of Soil Science, Porto Alegre, Brazil.
Colorado State University-Pueblo, Pueblo, CO, USA.
Forensic Sci Res. 2024 Feb 7;10(2):owae016. doi: 10.1093/fsr/owae016. eCollection 2025 Jun.
recreational and/or medicinal use has been legalized in the past years in many states and countries. As a consequence, many growers and product developers have emerged in a new market throughout the world; at the same time, issues regarding questionable quality control have also risen, as several reports on users' health-related problems caused by inaccurate labeling content in -based medicines, edibles or other derivatives are being published and brought out to the public's attention. These facts make traceability methodologies crucial whether for forensic use, such as drug trafficking eradication, or for quality control purposes of legal and of products derived from it. Hence, the objective of this study was to analyze by means of attenuated total reflectance Fourier transform infrared spectroscopy (ATR-FTIR) to assess the capability of this technique to trace the geographical origin of cultivated in Brazil and in Colorado, USA. Forty-seven samples from Brazil and 18 samples from Colorado were analyzed by ATR-FTIR. Linear discriminant analysis (LDA) was employed to source the samples. The combination of ATR-FTIR and LDA achieved up to 95.23% accuracy in assigning samples to their geographical locations of origin in Brazil and up to 100% in Colorado.
在过去几年里，娱乐性和/或药用在许多州和国家已合法化。因此，世界各地的新市场中涌现出许多种植者和产品开发者；与此同时，有关质量控制存疑的问题也出现了，因为有几份关于基于大麻的药品、食品或其他衍生物中标签内容不准确导致用户健康相关问题的报告正在发布并引起公众关注。这些事实使得溯源方法至关重要，无论是用于诸如根除毒品贩运等法医用途，还是用于合法大麻及其衍生产品的质量控制目的。因此，本研究的目的是通过衰减全反射傅里叶变换红外光谱法（ATR-FTIR）进行分析，以评估该技术追踪巴西和美国科罗拉多种植的大麻地理来源的能力。通过ATR-FTIR对来自巴西的47个样品和来自科罗拉多的18个样品进行了分析。采用线性判别分析（LDA）对样品进行溯源。ATR-FTIR和LDA的组合在将大麻样品归为其在巴西的地理来源位置时准确率高达95.23%，在科罗拉多则高达100%。
