Detailed Information on Publication Record
2022
Reduced graphene oxide/ZnO nanocomposite modified electrode for the detection of tetracycline
DUROVIC, Ana, Zorica STOJANOVIC, Zuzana BYTESNIKOVA, Snezana KRAVIC, Pavel SVEC et. al.Basic information
Original name
Reduced graphene oxide/ZnO nanocomposite modified electrode for the detection of tetracycline
Authors
DUROVIC, Ana, Zorica STOJANOVIC, Zuzana BYTESNIKOVA, Snezana KRAVIC, Pavel SVEC, Jan PŘIBYL (203 Czech Republic, guarantor, belonging to the institution) and Lukas RICHTERA
Edition
Journal of materials science, NEW YORK, Springer, 2022, 0022-2461
Other information
Language
English
Type of outcome
Článek v odborném periodiku
Field of Study
10400 1.4 Chemical sciences
Country of publisher
United States of America
Confidentiality degree
není předmětem státního či obchodního tajemství
References:
Impact factor
Impact factor: 4.500
RIV identification code
RIV/00216224:14740/22:00127889
Organization unit
Central European Institute of Technology
UT WoS
000758999900002
Keywords in English
SOLID-PHASE EXTRACTIONWALL CARBON NANOTUBESODIUM-BOROHYDRIDEGRAPHITESAMPLESSPECTROSCOPYANTIBIOTICSREDUCTIONCOMPOSITEWATER
Tags
International impact, Reviewed
Změněno: 2/11/2024 15:14, Mgr. Adéla Pešková
Abstract
V originále
In this work, rGO-ZnO (reduced graphene oxide-zinc oxide) nanocomposite was prepared and used for modification of GC (glassy carbon) surface in order to obtain an electrochemical sensor for tetracycline determination in water and urine samples by voltammetric technique. The characterization of synthesized nanocomposite was accomplished by utilizing SEM, EDS, AFM and FTIR analyses. The electrochemical behaviour of tetracycline on the modified GCE was studied by cyclic voltammetry and results revealed that modification enhanced the electro-oxidation of tetracycline with increased current intensity. Tetracycline provided a well-defined oxidation peak at around + 1.05 V vs. Ag/AgCl (3.5 mol/L KCl) in Britton-Robinson buffer (BRB) at pH 8.0. Then, square-wave voltammetry (SWV) was applied for analytical purposes. The influence of the supporting electrolyte (type, concentration and pH) and SWV parameters on the peak current was investigated in order to optimize the experimental and instrumental conditions for quantitative analysis. Under the optimal conditions, the prepared sensor exhibits a wide linear range (4-400 mu mol/L) with a low limit of detection (0.38 mu mol/L) and good reproducibility of analysis (RSD < 3.40%). In addition, the sensor showed high selectivity towards tetracycline analysis in comparison to interferences often present in real samples. The practical analytical usefulness of the presented sensing platform was successfully demonstrated in the determination of tetracycline in water and human urine with good recoveries.
Links
LM2018127, research and development project |
| ||
LQ1601, research and development project |
|