“…Hydrogen peroxide (H 2 O 2 ) is an important analyte, and its determination plays a key role in different fields, such as biology, biomedicine, the food industry, and pharmaceutical, biochemical, and environmental analyses. , Moreover, it is involved in several biological processes, and its excess can affect the proper functioning of cells; thus, its accurate determination is valuable . Over the years, different techniques have been explored for its determination, such as titrimetry, chromatography, spectrophotometry, colorimetry, fluorescence, and electrochemistry . However, electrochemical methods are preferred due to their rapid development, good accuracy, lower detection limits, easy miniaturization, biocompatibility, low cost, simple instrumentation, high selectivity, and fast response. − …”