Volume 34, Issue 9 p. 1431-1440
Research Article

Construction of Sensor for Submicromolar Detection of Riboflavin by Surface Modification of SPCE with Thermal Degradation Products of Nickel Acetate Tetrahydrate

Miloš Ognjanović

Corresponding Author

Miloš Ognjanović

The „VINČA“ Institute of Nuclear Sciences – National Institute of the Republic of Serbia, University of Belgrade, Mike Petrovića Alasa 12–14, 11001 Belgrade, Serbia

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Dalibor M. Stanković

Dalibor M. Stanković

The „VINČA“ Institute of Nuclear Sciences – National Institute of the Republic of Serbia, University of Belgrade, Mike Petrovića Alasa 12–14, 11001 Belgrade, Serbia

Faculty of Chemistry, University of Belgrade, Studentski trg 12–16, 11000 Belgrade, Serbia

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Željko K. Jaćimović

Željko K. Jaćimović

Faculty of Metallurgy and Technology, University of Montenegro, Cetinjski put bb, 81000 Podgorica, Montenegro

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Milica Kosović-Perutović

Milica Kosović-Perutović

Faculty of Metallurgy and Technology, University of Montenegro, Cetinjski put bb, 81000 Podgorica, Montenegro

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José F. M. L. Mariano

José F. M. L. Mariano

Department of Physics and CeFEMA, Faculty of Science and Technology, University of Algarve, Campus de Gambelas, Faro, 8005-139 Portugal

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Stjepko Krehula

Stjepko Krehula

Division of Materials Chemistry, Ruđer Bošković Institute, P.O. Box 180, HR, 10002 Zagreb, Croatia

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Svetozar Musić

Svetozar Musić

Division of Materials Chemistry, Ruđer Bošković Institute, P.O. Box 180, HR, 10002 Zagreb, Croatia

Croatian Academy of Sciences and Arts, Trg Nikole Šubića Zrinskog 11, 10000 Zagreb, Croatia

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Bratislav Antić

Bratislav Antić

The „VINČA“ Institute of Nuclear Sciences – National Institute of the Republic of Serbia, University of Belgrade, Mike Petrovića Alasa 12–14, 11001 Belgrade, Serbia

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First published: 03 March 2022
Citations: 4

Abstract

Nickel acetate tetrahydrate (NAT) sample series were used to modify screen-printed carbon electrodes (SPCE). The samples were hybrid Ni/NiO nanocomposites, where the NiO phase increased with an applied treatment temperature. Results of electrochemical measurements pointed that the Ni/NiO550/SPCE-modified electrode had the best analytical performance toward the detection of riboflavin (RF). The Ni/NiO550/SPCE-based sensor showed linear response with RF in the concentration range of 0.5–75 μM and 0.15 μM LOD in BRBS. Sensor offered fast response time, good repeatability, and selectivity with an RSD of 1.4 %. Our results show that the Ni:NiO nanocomposite ratio strongly influenced the electroanalytical performance of SPCE.

Data Availability Statement

Data sharing not applicable to this article as no datasets were generated or analysed during the current study.