The simultaneous determination of omethoate and dichlorvos pesticides in grain samples using a palladium and graphene composite modified glassy carbon electrode

RSC Advances ◽  
2015 ◽  
Vol 5 (28) ◽  
pp. 21909-21915 ◽  
Author(s):  
M. Siva Prasad ◽  
K. Krishnaveni ◽  
M. Dhananjayulu ◽  
V. Sreenivasulu ◽  
N. Y. Sreedhar
Keyword(s):  
Electrochemical Sensor ◽  
Simultaneous Determination ◽  
Glassy Carbon Electrode ◽  
Glassy Carbon ◽  
Carbon Electrode ◽  
Modified Glassy Carbon Electrode ◽  
Graphene Composite

An electrochemical sensor based on a palladium (Pd) and graphene (Gr) composite modified GCE was fabricated, characterised and used for the simultaneous determination of OMT and DCV in grain samples.

Application of a Bismuth-Silver Nanosensor for the Simultaneous Determination of Pt-Rh and Pd-Rh Complexes

2016 ◽  
Vol 44 ◽  
pp. 126-133 ◽  
Author(s):  
Charlton van der Horst ◽  
Bongiwe Silwana ◽  
Emmanuel Iheanyichukwu Iwuoha ◽  
Vernon Somerset
Keyword(s):  
Electrochemical Sensor ◽  
Simultaneous Determination ◽  
Glassy Carbon Electrode ◽  
Glassy Carbon ◽  
Bimetallic Nanoparticles ◽  
Carbon Electrode ◽  
Modified Glassy Carbon Electrode ◽  
Electrode Surfaces ◽  
Vis Spectroscopy

The present work describes the development of an electrochemical sensor for the simultaneous determination of Pd-Rh and Pt-Rh complexes using a bismuth-silver bimetallic nanofilm modified glassy carbon electrode. The electrochemical sensor was prepared by drop-casting bismuth-silver bimetallic nanoparticles on to glassy carbon electrode surfaces. The HRTEM microscopy and UV-Vis spectroscopy results of the bismuth-silver nanoparticles were compared with other work in literature. The developed nanosensor exhibited a linear working range of 0.4 - 1.4 ng/L for Pd-Rh and 0.8-1.2 ng/L for Pt-Rh DMG complexes, respectively. Very low detection limits (S/N = 3) of 0.19 ng/L for Pd (II), 0.2 ng/L Pt (II) and 0.22 ng/L for Rh (III) were obtained and the sensor was successfully applied to environmental samples.

scholarly journals Simultaneous determination of methadone and morphine at a modified electrode with 3D β-MnO2 nanoflowers: application for pharmaceutical sample analysis

RSC Advances ◽  
2020 ◽  
Vol 10 (63) ◽  
pp. 38532-38545
Author(s):  
Sedigheh Akbari ◽  
Shohreh Jahani ◽  
Mohammad Mehdi Foroughi ◽  
Hadi Hassani Nadiki
Keyword(s):  
Electrochemical Sensor ◽  
Simultaneous Determination ◽  
Glassy Carbon Electrode ◽  
Glassy Carbon ◽  
Simultaneous Detection ◽  
Carbon Electrode ◽  
Sample Analysis ◽  
Modified Glassy Carbon Electrode ◽  
Pharmaceutical Sample

Electrochemical sensor based on β-MnO2 nanoflower-modified glassy carbon electrode for the simultaneous detection of methadone and morphine was fabricated.

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