A Laser Reduced Graphene Oxide Grid Electrode for the Voltammetric Determination of Carbaryl; Molecules; Vol. 26, iss. 16

A Laser Reduced Graphene Oxide Grid Electrode for the Voltammetric Determination of Carbaryl; Molecules; Vol. 26, iss. 16

Bibliographic Details
Parent link:	Molecules Vol. 26, iss. 16.— 2021.— [5050, 12 p.]
Corporate Author:	Национальный исследовательский Томский политехнический университет Инженерная школа природных ресурсов Отделение химической инженерии
Other Authors:	Saqib M. Muhammad, Dorozhko E. V. Elena Vladimirovna, Barek J. Jiri, Vyskocil V. Vlastimil, Korotkova E. I. Elena Ivanovna, Shabalina A. V. Anastasiya Valerjevna
Summary:	Title screen Laser-reduced graphene oxide (LRGO) on a polyethylene terephthalate (PET) substrate was prepared in one step to obtain the LRGO grid electrode for sensitive carbaryl determination. The grid form results in a grid distribution of different electrochemically active zones affecting the electroactive substance diffusion towards the electrode surface and increasing the electrochemical sensitivity for carbaryl determination. Carbaryl is electrochemically irreversibly oxidized at the secondary amine moiety of the molecule with the loss of one proton and one electron in the pH range from 5 to 7 by linear scan voltammetry (LSV) on the LRGO grid electrode with a scan rate of 300 mV/s. Some interference of the juice matrix molecules does not significantly affect the LSV oxidation current of carbaryl on the LRGO grid electrode after adsorptive accumulation without applied potential. The LRGO grid electrode can be used for LSV determination of carbaryl in fruit juices in the concentration range from 0.25 to 128 mg/L with LOD of 0.1 mg/L. The fabrication of the LRGO grid electrode opens up possibilities for further inexpensive monitoring of carbaryl in other fruit juices and fruits.
Language:	English
Published:	2021
Subjects:	труды учёных ТПУ электронный ресурс laser reduced graphene oxide grid electrode graphene oxide linear sweep voltammetry carbaryl pesticides оксид графена вольтамперометрия карбарил пестициды
Online Access:	http://earchive.tpu.ru/handle/11683/70717 https://doi.org/10.3390/molecules26165050
Format:	Electronic Book Chapter
KOHA link:	https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=667741

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