A Comparison of Four Different Electrode Matrices on the Performance of Amperometric Hydrogen Peroxide (Bio)Sensors


Tunca K., Öztürk F., Erden P. E.

Electroanalysis, 2022 (Peer-Reviewed Journal) identifier identifier

  • Publication Type: Article / Article
  • Publication Date: 2022
  • Doi Number: 10.1002/elan.202100469
  • Journal Name: Electroanalysis
  • Journal Indexes: Science Citation Index Expanded, Scopus, Academic Search Premier, Aerospace Database, Applied Science & Technology Source, BIOSIS, Chimica, Communication Abstracts, Metadex, Civil Engineering Abstracts
  • Keywords: Amperometric (bio)sensor, hydrogen peroxide, carbon nanotubes, zinc oxide nanoparticles, ionic liquid, prussian blue, CARBON NANOTUBES, SILVER NANOPARTICLES, GRAPHENE OXIDE, DIRECT ELECTROCHEMISTRY, HORSERADISH-PEROXIDASE, ZINC-OXIDE, BIOSENSOR, SENSOR, H2O2, BLUE

Abstract

© 2022 Wiley-VCH GmbHA comparison of the analytical performances of four different (bio)sensor designs in H2O2 determination is discussed. The (bio)sensor designs developed were based on the use of (i) multiwalled carbon nanotubes (MWCNT), zinc oxide nanoparticles (ZnONP), prussian blue (PB); (ii) MWCNT, ZnONP, PB and ionic liquid (IL); (iii) MWCNT, ZnONP and horseradish peroxidase (HRP) and (iv) MWCNT, ZnONP, HRP and IL modified glassy carbon electrode (GCE). A performance comparison of (bio)sensors showed that the one based on HRP/IL-MWCNT-ZnONP/GCE showed the best analytical characteristics with a linear dynamic range of 9.99×10−8–7.55×10−4 M, detection limit of 1.37×10−8 M and sensitivity of 17.00 μA mM−1.