Naslov
Electroactivated disposable pencil graphite electrode ‐ new, cost‐effective, and sensitive electrochemical detection of bioflavonoid hesperidin

Autori
Šafranko, Silvija ; Stanković, Anamarija ; Asserghine, Abdelilah ; Jakovljević, Martina ; Hajra, Sugato ; Nundy, Srijita ; Medvidović- Kosanović, Martina ; Jokić, Stela

Izvornik
Electroanalysis (1040-0397) 33 (2021), 4; 1063-1071

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
electroactivated disposable graphite electrode ; hesperidin ; SECM ; voltammetry

Sažetak
Electroactivated disposable pencil graphite electrode (ePGE) was used for hesperidin detection with cv and dpv Electroactivation efficiency of the pencil graphite electrode (PGE) was examined with EIS and SECM. Enhancement of electron transfer kinetics after electroactivation was found. Hesperidin is irreversibly oxidized on ePGE (oxidation was the most pronounced at pH = 5.0). Linear dependence between the peak current and the hesperidin concentration from 5×10‐7 M to 1×10‐5 M was obtained. Determined LOD was 2×10‐7 M. Hesperidin was quantified in pharmaceutical formulation with ePGE and the results were in a good correlation with concentrations determined with HPLC‐DAD (R2 = 0.9462).

Izvorni jezik
Engleski

Znanstvena područja
Kemija, Biotehnologija

Napomena
This research is supported by Anhui Provincial
NaturalScience Foundation (Grants No. 2008085QB68
and No.1808085QB50), Natural Science Foundation
of AnhuiProvincial Department of Education (No.
KJ2019A0598),Excellent Young Talents Fund Program
of Higher Educa-tion Institutions of Anhui
Province (No. gxyq2019168),Foundation of State
Key Laboratory of AnalyticalChemistry for Life
Science (Grants No. SKLACLS2003)and Foundation of
Henan Key Laboratory of Biomolecu-lar Recognition
and Sensing (Grants No.HKLBRSK1905).

POVEZANOST RADA