Highly sensitive voltammetric determination of Allura Red (E129) food colourant on a planar carbon fiber sensor modified with shungite

• Published in: Analytica chimica acta Vol. 1272; p. 341481
• Main Authors: Bukharinova, Maria A., Khamzina, Ekaterina I., Stozhko, Natalia Yu, Tarasov, Aleksey V.
• Format: Journal Article
• Language: English
• Published: Netherlands Elsevier B.V 01.09.2023
• Subjects: Allura red; Azo Compounds - analysis; Azodye; Beverages; Carbon - chemistry; Carbon Fiber; Carbon veil; Chemical sensor; Electrochemical Techniques; Electrodes; Food Coloring Agents - analysis; Limit of Detection; Pharmaceuticals; Shungite; SHU; phyto-AuNPs; GCE; Chemical sensor; Azodye; Shungite; EIS; AR; BAFS; EDS; PCFE; Allura red; Carbon veil; Beverages; Pharmaceuticals

This article presents an original planar carbon fiber electrode (PCFE), in which shungite (SHU) is used as a modifier for the first time. Shungite is a unique natural nanostructured composite consisting of carbon in the form of aggregated graphene stacks, oxides of silicon, titanium, aluminum, iron,...