Department of Chemical and Geological Sciences, University of Modena and Reggio Emilia, via G. Campi 103, 41125 Modena, Italy.
Department of Life Sciences, University of Modena and Reggio Emilia, G. Campi 103, 41125 Modena, Italy.
Analyst. 2023 Sep 25;148(19):4688-4697. doi: 10.1039/d3an01090b.
Two electrochemical sensors are proposed here for the first time for the fast screening of cannabinoids in L. plant material (inflorescences). The accurate control of cannabinoid content is important for discriminating between recreational, illegal, and fibre-type samples, which differ mainly according to the amount of Δ-tetrahydrocannabinol (Δ-THC) and Δ-tetrahydrocannabinolic acid (Δ-THCA). Two screen printed electrodes obtained using different electrode materials were tested for the analysis of extracts from recreational and fibre-type and their performance was compared with a consolidated method based on high-performance liquid chromatography (HPLC). The voltammetric responses recorded in the different samples reflected the compositional differences of the recreational and fibre-type extracts in accordance with the results of HPLC analyses. Moreover, the quantification of Δ-THCA and the total cannabinoid content on the basis of the intensity of the peaks of the voltammograms was possible through a simple and fast electrochemical procedure.
本文首次提出了两种电化学传感器，用于快速筛选 L. 植物材料（花序）中的大麻素。准确控制大麻素含量对于区分娱乐性、非法和纤维型样品非常重要，这些样品主要根据 Δ-四氢大麻酚（Δ-THC）和 Δ-四氢大麻酸（Δ-THCA）的含量来区分。使用两种不同电极材料制备的两种丝网印刷电极用于分析来自娱乐性和纤维型的提取物，并将其性能与基于高效液相色谱（HPLC）的综合方法进行了比较。在不同样品中记录的伏安响应反映了根据 HPLC 分析结果，娱乐性和纤维型提取物的组成差异。此外，通过简单快速的电化学程序，可以根据伏安图峰的强度对 Δ-THCA 和总大麻素含量进行定量。
