Казанский (Приволжский) федеральный университет, КФУ
КАЗАНСКИЙ
ФЕДЕРАЛЬНЫЙ УНИВЕРСИТЕТ
 
SENSITIVE VOLTAMMETRIC QUANTIFICATION OF CARMINIC ACID IN CANDIES USING SELENIUM DIOXIDE NANOPARTICLES BASED ELECTRODE
Форма представленияСтатьи в зарубежных журналах и сборниках
Год публикации2022
Языканглийский
  • Зиятдинова Гузель Камилевна, автор
  • Кавиева Лия Радиковна, автор
  • Библиографическое описание на языке оригинала Kavieva, L. Sensitive voltammetric quantification of carminic acid in candies using selenium dioxide nanoparticles based electrode / L. Kavieva, G. Ziyatdinova // Food Chem. – 2022. – V. 386. – Article 132851. – 8 p.
    Аннотация Carminic acid is a food colorant which concentration has to be controlled due to the possible negative health effects. Sensitive voltammetric method is developed for carminic acid determination using electrode modified with SeO2 nanoparticles (SeO2 NPs) and hexadecyltriphenylphosphonium bromide (HDTPPB) acting as dispersive agent for nanoparticles and electrode surface co-modifier. SeO2 NPs of 37–45 nm are uniformly distributed at the electrode increasing its electroactive area (41 ? 2 vs. 8.9 ? 0.2 mm2 for bare glassy carbon electrode (GCE)). Electrochemical impedance spectroscopy data confirm an 18.3-fold decrease of charge transfer resistance compared to GCE (12.7 ? 0.3 vs. 232 ? 7 kΩ, respectively). In differential pulse mode, the linear dynamic ranges of carminic acid are 0.010–2.5 and 2.5–10 μmol L−1 with a detection limit of 3.4 nmol L−1. The method is successfully employed in candies and lozenges for sore throat treatment. The approach is simple, reliable, and can be used as an alternative to chromatography in routine analysis.
    Ключевые слова Food colorants, carminic acid, voltammetric detection, modified electrodes, nanoparticles, surfactants
    Название журнала FOOD CHEMISTRY
    URL https://www.scopus.com/inward/record.uri?eid=2-s2.0-85127182352&doi=10.1016%2fj.foodchem.2022.132851&partnerID=40&md5=52b4841685c66af34920d120bd86d831
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