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A Highly Sensitive and Selective Hydrogen Peroxide Biosensor Based on Gold Nanoparticles and Three-Dimensional Porous Carbonized Chicken Eggshell Membrane

Fig 3

X-ray diffraction patterns (A), FTIR spectra (B) and XPS spectra (C) of modified electrodes.

XPS spectra of wide-scan survey (a), XPS C1s spectra of ESM (b), CESM (c), GCE (d) and CESM-GCE (e).

Fig 3

doi: https://doi.org/10.1371/journal.pone.0130156.g003