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Ultrasensitive electroanalytical sulfisoxazole sensors amplified with Pd doped ZnO nanoparticle and 1-hexyl-3-methyl imidazolium bis (tri fluoro methyl sulfonyl) imid modified

Abstract

In this research, an electrochemical sensor have been introduced through incorporating Pd doped ZnO nanoparticle (ZnO-Pd/NPs) into carbon paste (CP) matrix amplified by a conductive binder (1-hexyl-3-methyl imidazolium bis (trifluoro methylsulfonyl) imid (1H3MIBTMSI), in this case) to determine the concentration of sulfisoxazole (SFX) drug in urine, tablet, and pharmaceutical wastewater samples. ZnO-Pd/NPs nanoparticles were successfully synthesized by a one-pot procedure based on precipitation strategy and characterized by FE-SEM, TEM, EDAX, MAP, and XRD methods. Using ZnO-Pd/NPs/1H3MIBTMSI/CPE as a working electrode, a dramatic increase in the oxidation current of SFX was observed and the sensor was used for determining SFX within the concentration range 0.009 μM to 430 μM (R2=0.9981). Due to high conductivity of ZnO-Pd/NPs/1H3MIBTMSI/CPE, the sensor showed a limit of detection of 5.0 nM and was introduced as the first analytical sensor for determining SFX at the nanomolar level. Real sample analysis results showed a recovery range 98.8-104.15% for determination of SFX that confirm a powerful ability of ZnO-Pd/NPs/1H3MIBTMSI/CPE for determination of SFX in urine and pharmaceutical samples.

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Article information


Submitted
24 Mar 2020
Accepted
18 May 2020
First published
21 May 2020

New J. Chem., 2020, Accepted Manuscript
Article type
Paper

Ultrasensitive electroanalytical sulfisoxazole sensors amplified with Pd doped ZnO nanoparticle and 1-hexyl-3-methyl imidazolium bis (tri fluoro methyl sulfonyl) imid modified

R. Bavandpour, M. Rajabi, H. Karimi-Maleh and A. Asghari, New J. Chem., 2020, Accepted Manuscript , DOI: 10.1039/D0NJ01461C

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