TY - JOUR
T1 - Silver-capped selenium explored as an electro-catalyst for simultaneous detection of nitro-aromatic drugs in different aqueous samples
AU - Jesu Amalraj, Antolin Jesila
AU - Narasimha Murthy, Umesh
AU - Wang, Sea Fue
N1 - Publisher Copyright:
© 2022 The Korean Society of Industrial and Engineering Chemistry
PY - 2022/4/25
Y1 - 2022/4/25
N2 - Herein, we have fabricated silver (Ag) over selenium (Se) to explore its enriched electrochemical performance towards the simultaneous detection of nitro-aromatic drugs (nitrofurantoin (NFT) and P-nitrophenol (P-NP)). Due to its synergistic effect, Ag/Se modified GCE showed excellent electro-catalytic activity compared to other electrodes. Well-defined and divergent reduction peaks were obtained at −0.49 V (NFT) and −0.85 V (P-NP) with a detection range of 0.9 V at Ag/Se/GCE. It withholds an extensive linear range of 0.1 to 210 µM for NFT and 0.1 to 150 µM for P-NP with a nanomolar level detection limit of 23.87 nM L−1 & 7.82 nM L−1; an appraisable sensitivity of 1.138 µA µM−1 cm−2 & 2.86 µA µM−1 cm−2 for NFT and P-NP, respectively. Interestingly, the electrode possesses a high selectivity in the presence of biomolecules, nitro drugs, and metal ions. Examination of nitro-aromatic drug contamination on water sources shows a massive peril to human life and marine environs due to its adverse hazardous effects. Further, the fabricated Ag/Se-based electrochemical sensor was exposed to various environmental aqueous samples to detect NFT& P-NP which has demonstrated an exquisite recovery results in practical feasibility. Thereby confirms that Ag/Se-based electrochemical sensors have boundless potential for ecological investigations and sensing applications.
AB - Herein, we have fabricated silver (Ag) over selenium (Se) to explore its enriched electrochemical performance towards the simultaneous detection of nitro-aromatic drugs (nitrofurantoin (NFT) and P-nitrophenol (P-NP)). Due to its synergistic effect, Ag/Se modified GCE showed excellent electro-catalytic activity compared to other electrodes. Well-defined and divergent reduction peaks were obtained at −0.49 V (NFT) and −0.85 V (P-NP) with a detection range of 0.9 V at Ag/Se/GCE. It withholds an extensive linear range of 0.1 to 210 µM for NFT and 0.1 to 150 µM for P-NP with a nanomolar level detection limit of 23.87 nM L−1 & 7.82 nM L−1; an appraisable sensitivity of 1.138 µA µM−1 cm−2 & 2.86 µA µM−1 cm−2 for NFT and P-NP, respectively. Interestingly, the electrode possesses a high selectivity in the presence of biomolecules, nitro drugs, and metal ions. Examination of nitro-aromatic drug contamination on water sources shows a massive peril to human life and marine environs due to its adverse hazardous effects. Further, the fabricated Ag/Se-based electrochemical sensor was exposed to various environmental aqueous samples to detect NFT& P-NP which has demonstrated an exquisite recovery results in practical feasibility. Thereby confirms that Ag/Se-based electrochemical sensors have boundless potential for ecological investigations and sensing applications.
KW - Environmental sample analysis
KW - Lustrous transition metal
KW - Nitroaromatics
KW - Selenium rods
KW - Simultaneous detection
UR - http://www.scopus.com/inward/record.url?scp=85124209834&partnerID=8YFLogxK
U2 - 10.1016/j.jiec.2022.01.004
DO - 10.1016/j.jiec.2022.01.004
M3 - Article
AN - SCOPUS:85124209834
SN - 1226-086X
VL - 108
SP - 243
EP - 253
JO - Journal of Industrial and Engineering Chemistry
JF - Journal of Industrial and Engineering Chemistry
ER -