Design of a Schiff base-modified chitosan hydrogel electrochemical sensor for the simultaneous detection of phenolic pollutants in seawater

Key Points

• The sensor effectively detects phenolic pollutants in seawater, enhancing environmental monitoring.
• Chitosan-based hydrogel enables simultaneous detection of multiple contaminants, showcasing its versatility.
• Electrochemical analysis demonstrated high sensitivity for phenolic pollutants at low concentrations, specifically at 10 µM.
• This approach highlights the potential for advanced sensors to monitor marine pollution, but further validation may be needed.