当前位置: X-MOL 学术Analyst › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Development of an electrochemical sensor based on carbon black for the detection of cannabidiol in vegetable extracts
Analyst ( IF 4.2 ) Pub Date : 2020-10-23 , DOI: 10.1039/d0an01932a
Marco Cirrincione 1, 2, 3, 4, 5 , Barbara Zanfrognini 5, 6, 7, 8 , Laura Pigani 5, 9, 10, 11 , Michele Protti 1, 2, 3, 4, 5 , Laura Mercolini 1, 2, 3, 4, 5 , Chiara Zanardi 5, 6, 7, 8, 9
Affiliation  

A glassy carbon electrode chemically modified with a carbon black coating is proposed here for the rapid and portable determination of cannabidiol (CBD) in a commercial Cannabis seed oil and in fibre-type Cannabis sativa L. leaves. The mechanism of CBD oxidation was studied in relation to simpler phenyl derivatives bearing the same electroactive group, namely resorcinol and 2-methylresorcinol. These molecules also allowed us to determine the best conditions for the electrochemical detection of CBD, as to the pH value and to the best solvent mixture to use. Carbon black was chosen among nanostructured carbon-based materials owing to its outstanding features as an electrode modifier for analyte detection. The performance of the modified electrode was determined by flow injection analyses of standard solutions of CBD, obtaining a linear correlation between the oxidation current and the analyte concentration; the sensor response is characterised by suitable repeatability and reproducibility. The analysis of commercial products by the standard addition method allowed us to ascertain the accuracy of the sensor for the detection of CBD in real samples.

中文翻译:

基于炭黑的电化学传感器的开发,用于检测蔬菜提取物中的大麻二酚

本文提出了一种用碳黑涂层化学修饰的玻璃碳电极,用于快速,便携式测定商用大麻籽油和纤维型大麻中的大麻二酚(CBD)。L.叶子。针对带有相同电活性基团的简单苯基衍生物,即间苯二酚和2-甲基间苯二酚,研究了CBD氧化机理。这些分子还使我们能够确定CBD电化学检测的最佳条件,包括pH值和使用的最佳溶剂混合物。炭黑由于其出色的功能作为分析物检测的电极改性剂,因此在纳米结构的碳基材料中选择了炭黑。通过对CBD标准溶液进行流动注射分析来确定修饰电极的性能,获得氧化电流与分析物浓度之间的线性关系。传感器响应的特点是具有适当的可重复性和可重复性。
更新日期:2020-11-13
down
wechat
bug