scholarly journals Simultaneous Voltammetric Detection of Carbaryl and Paraquat Pesticides on Graphene-Modified Boron-Doped Diamond Electrode

Sensors ◽  
2017 ◽  
Vol 17 (9) ◽  
pp. 2033 ◽  
Author(s):  
Aniela Pop ◽  
Florica Manea ◽  
Adriana Flueras ◽  
Joop Schoonman
2020 ◽  
Vol 151 (7) ◽  
pp. 1009-1017
Author(s):  
Eva Culková ◽  
Zuzana Lukáčová-Chomisteková ◽  
Renata Bellová ◽  
Danica Melicherčíková ◽  
Jaroslav Durdiak ◽  
...  

2020 ◽  
Vol 6 (4) ◽  
pp. 75
Author(s):  
Geiser Gabriel Oliveira ◽  
Déborah Christine Azzi ◽  
Tiago Almeida Silva ◽  
Paulo Roberto de Oliveira ◽  
Orlando Fatibello-Filho ◽  
...  

In this research, a boron-doped diamond (BDD) electrode has been explored to detect the chloroquine drug. The electrochemical performance of BDD electrode towards the irreversible anodic response of chloroquine was investigated by subjecting this electrode to the cathodic (−0.5 A cm−2 by 180 s, generating a predominantly hydrogen-terminated surface) and anodic (+0.5 A cm−2 by 30 s, oxygen-terminated surface) pretreatments. The cathodically pretreated BDD electrode ensured a better-defined anodic peak and higher current intensity. Thus, by applying the cathodically pretreated BDD electrode and square-wave voltammetry (SWV), the analytical curve was linear from 0.01 to 0.25 µmol L−1 (correlation coefficient of 0.994), with sensitivity and limit of detection of 12.2 µA L µmol−1 and 2.0 nmol−1, respectively. This nanomolar limit of detection is the lowest recorded so far with modified and unmodified electrodes.


2013 ◽  
Vol 25 (7) ◽  
pp. 1734-1741 ◽  
Author(s):  
Ana Paula Pires Eisele ◽  
Débora Nóbile Clausen ◽  
César Ricardo Teixeira Tarley ◽  
Luiz Henrique Dall'Antonia ◽  
Elen Romão Sartori

2013 ◽  
Vol 39 ◽  
pp. 41-46 ◽  
Author(s):  
Polyana Fernandes Pereira ◽  
Mariana Cardoso Marra ◽  
Amanda Barbosa Lima ◽  
Wallans Torres Pio dos Santos ◽  
Rodrigo Alejandro Abarza Munoz ◽  
...  

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