J 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.

Základní údaje

Originální název

Reduced graphene oxide/ZnO nanocomposite modified electrode for the detection of tetracycline

Autoři

DUROVIC, Ana, Zorica STOJANOVIC, Zuzana BYTESNIKOVA, Snezana KRAVIC, Pavel SVEC, Jan PŘIBYL (203 Česká republika, garant, domácí) a Lukas RICHTERA

Vydání

Journal of materials science, NEW YORK, Springer, 2022, 0022-2461

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

10400 1.4 Chemical sciences

Stát vydavatele

Spojené státy

Utajení

není předmětem státního či obchodního tajemství

Odkazy

Impakt faktor

Impact factor: 4.500

Kód RIV

RIV/00216224:14740/22:00127889

Organizační jednotka

Středoevropský technologický institut

UT WoS

000758999900002

Klíčová slova anglicky

SOLID-PHASE EXTRACTIONWALL CARBON NANOTUBESODIUM-BOROHYDRIDEGRAPHITESAMPLESSPECTROSCOPYANTIBIOTICSREDUCTIONCOMPOSITEWATER

Štítky

Příznaky

Mezinárodní význam, Recenzováno
Změněno: 17. 10. 2024 12:59, Ing. Monika Szurmanová, Ph.D.

Anotace

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.

Návaznosti

LQ1601, projekt VaV
Název: CEITEC 2020 (Akronym: CEITEC2020)
Investor: Ministerstvo školství, mládeže a tělovýchovy ČR, CEITEC 2020
90127, velká výzkumná infrastruktura
Název: CIISB II