A Portable Measurement System Based on Nanomembranes for Pollutant Detection in Water
Luca Tari, Maria Cojocari, Gabriele Cavaliere, Sarah Sibilia, Francesco Siconolfi, Georgy Fedorov, Luigi Ferrigno, Polina Kuzhir, Antonio Maffucci
TL;DR
A portable and low-cost system using nanomembranes and electrochemical methods is developed to detect pollutants in water.
Contribution
A novel portable sensing system using PPF+Ni nanomembranes and simplified EIS architecture for pollutant detection in water.
Findings
The system detected benzoquinone concentrations as low as 0.1 mM with a monotonic response.
It showed higher resolution and practical advantages compared to the PalmSens4 commercial system.
The system demonstrated reliable discrimination across concentrations and adaptability for field deployment.
Abstract
This work presents the design, the development and the experimental validation of a portable, low-cost sensing system for the detection of waterborne pollutants. The proposed system is based on Electrochemical Impedance Spectroscopy and PPF+Ni nanomembrane sensors. Designed in response to the increasing demand for in situ water quality monitoring, the system integrates a simplified, scalable EIS acquisition architecture compatible with microcontroller-based platforms. The sensing configuration utilises the voltage divider principle, ensuring simplicity in signal conditioning by allowing compatibility with different electrode types through passive impedance matching. In addition, new merit figures have been proposed and implemented to analyse the measures. The proposed platform was experimentally characterised for its measurement stability, accuracy and environmental robustness.…
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Taxonomy
TopicsAnalytical Chemistry and Sensors · Advanced Sensor and Energy Harvesting Materials · Biosensors and Analytical Detection