Urchin-like Co3O4 Microspheres-Boosted Catalytic Oxidation: Environmentally-Friendly CO2 Vapor Generation for Total Organic Carbon Detection by Microplasma Optical Emission Spectrometry

Total organic carbon (TOC) is a crucial indicator of organic pollutants, widely used in environmental water quality monitoring and risk assessment. Conventional TOC detection methods often require high temperatures, complex equipment, and inefficient oxidation processes, limiting their field application due to time consumption, intricate operations, and limited sensitivity. Therefore, we developed a novel approach for TOC measurement using catalytic oxidation vapor generation coupled with miniaturized point discharge optical emission spectrometry (μPD-OES). This method employs urchin-like Co