TY - JOUR
T1 - Electrochemical Glyphosate Sensor Based on Hybrid Material SiO2/Sm2O3/3 3 with Meldola Blue
AU - Vieira Blasques, Rodrigo
AU - Fernandes-Junior, Wilson S.
AU - Vieira Mendes, Ana Márcia Rabelo
AU - Rose Castro Costa, Andressa
AU - Canevari, Thiago C.
AU - Ticona Arenas, Leliz
AU - Barcellos da Rosa, Marcelo
AU - Nunes, Gilvanda Silva
AU - Campos Janegitz, Bruno
AU - Chagas Silva, Maria Raimunda
AU - Pividori, María Isabel
AU - Mendes Villis, Paulo Cesar
N1 - Funding Information:
The authors are grateful to CNPq (303338/2019‐9 and 120557/2019‐3), CAPES (001 and 88887.510506/2020‐00), Universidade CEUMA (UNICEUMA) [BM‐04452/17]; and the Foundation for the Support of Research and Scientific and Technological Development of Maranhão (FAPEMA) [Process UNIVERSAL – 00987/18] for the financial support.
Publisher Copyright:
© 2022 Wiley-VCH GmbH.
PY - 2022
Y1 - 2022
N2 - In this work, we have proposed an electrochemical sensor for the detection of pesticides by using a ceramic composite with a SiO2 surface modified with Sm2O3 nanoparticles and C-graphite (SSMG), obtained by the sol-gel process and immobilized by adsorption in Meldola Blue cationic dye (MB). The composite was called (SSMG/MB), which was characterized by spectroscopic, electrochemical techniques, Fourier-transform infrared spectroscopy, and Cyclic Voltammetry. The proposed sensor was applied for the glyphosate electrochemical detection, using Differential Pulse Voltammetry, and, under optimized parameters has presented the linear response for the pesticide in the concentration range from 0.99 to 7.94 (μmol L−1; R2=0.9963; n=8). The calculated values for the detection limit and the quantification limit were 0.15 and 0.49 μmol L−1, respectively. Therefore, the new electrochemical sensor based on SiO2, NPsSm2O3, C-graphite, and MB hybrid material was developed for the first time for glyphosate determination, which has demonstrated high potential for the development of new hybrid devices for environmental control.
AB - In this work, we have proposed an electrochemical sensor for the detection of pesticides by using a ceramic composite with a SiO2 surface modified with Sm2O3 nanoparticles and C-graphite (SSMG), obtained by the sol-gel process and immobilized by adsorption in Meldola Blue cationic dye (MB). The composite was called (SSMG/MB), which was characterized by spectroscopic, electrochemical techniques, Fourier-transform infrared spectroscopy, and Cyclic Voltammetry. The proposed sensor was applied for the glyphosate electrochemical detection, using Differential Pulse Voltammetry, and, under optimized parameters has presented the linear response for the pesticide in the concentration range from 0.99 to 7.94 (μmol L−1; R2=0.9963; n=8). The calculated values for the detection limit and the quantification limit were 0.15 and 0.49 μmol L−1, respectively. Therefore, the new electrochemical sensor based on SiO2, NPsSm2O3, C-graphite, and MB hybrid material was developed for the first time for glyphosate determination, which has demonstrated high potential for the development of new hybrid devices for environmental control.
KW - ceramic material
KW - Meldola Blue
KW - pesticide
KW - samarium oxide nanoparticles
KW - sensor
UR - https://www.scopus.com/pages/publications/85143277332
U2 - 10.1002/elan.202200373
DO - 10.1002/elan.202200373
M3 - Article
AN - SCOPUS:85143277332
SN - 1040-0397
JO - Electroanalysis
JF - Electroanalysis
ER -