Казанский (Приволжский) федеральный университет, КФУ
КАЗАНСКИЙ
ФЕДЕРАЛЬНЫЙ УНИВЕРСИТЕТ
 
SIMULTANEOUS DETERMINATION OF FERULIC ACID AND VANILLIN IN VANILLA EXTRACTS USING VOLTAMMETRIC SENSOR BASED ON ELECTROPOLYMERIZED BROMOCRESOL PURPLE
Форма представленияСтатьи в зарубежных журналах и сборниках
Год публикации2022
Языканглийский
  • Давлетшин Рустам Рифхатович, автор
  • Жупанова Анастасия Сергеевна, автор
  • Зиятдинова Гузель Камилевна, автор
  • Жупанова Анастасия Сергеевна, автор
  • Библиографическое описание на языке оригинала Ziyatdinova, G. Simultaneous determination of ferulic acid and vanillin in vanilla extracts using voltammetric sensor based on electropolymerized bromocresol purple / G. Ziyatdinova, A. Zhupanova, R. Davletshin // Sensors. - 2022. - V. 22. - № 1. - Article 288. - 18 p.
    Аннотация Natural phenolic antioxidants are one of the widely studied compounds in life sciences due to their important role in oxidative stress prevention and repair. The structural similarity of these antioxidants and their simultaneous presence in the plant samples stipulate the development of methods for their quantification. The current work deals with the simultaneous determination of vanillin and its bioprecursor ferulic acid using a voltammetric sensor for the first time. A sensor based on the layer-by-layer deposition of the polyaminobenzene sulfonic acid functionalized single-walled carbon nanotubes (f-SWCNTs) and electropolymerized bromocresol purple has been developed for this purpose. The best response of co-existing target analytes was registered for the polymer obtained from the 25 ?M dye by 10-fold potential cycling from 0.0 to 1.2 V with the scan rate of 100 mV s−1 in 0.1 M phosphate buffer (PB), pH 7.0. Scanning electron microscopy (SEM), cyclic voltammetry and electrochemical impedance spectroscopy (EIS) confirmed the effectivity of the sensor developed. The linear dynamic ranges of 0.10?5.0 ?M and 5.0?25 ?M for both analytes with the detection limits of 72 nM and 64 nM for ferulic acid and vanillin, respectively, were achieved in differential pulse mode. The sensor was applied for the analysis of vanilla extracts.
    Ключевые слова Electropolymerization, triphenylmethane dyes, voltammetry, natural phenolic antioxidants, food analysis
    Название журнала Sensors
    URL https://www.scopus.com/inward/record.uri?eid=2-s2.0-85122004691&doi=10.3390%2fs22010288&partnerID=40&md5=38d49805c154715ae346afeab41fe3b5
    Пожалуйста, используйте этот идентификатор, чтобы цитировать или ссылаться на эту карточку https://repository.kpfu.ru/?p_id=263406

    Полная запись метаданных