Potentiometric Sensor System with Self-Calibration for Long-Term, In Situ Measurements
نویسندگان
چکیده
We built an integrated solid-contact ion-selective electrode (SCISE) system with the functionality of self-calibration. A multiplexed SCISE sensor (K+ and NO3− vs. Ag/AgCl) was fabricated on printed-circuit board (PCB) substrates subsequently embedded into a microfluidic flow cell for self-calibration flow-through analysis. PCB circuit that includes modules both readout fluid control developed. The sensors showed fast near-Nernstian response (56.6 K+ −57.4 mV/dec electrode) maintained their performance at least three weeks. also highly reproducible in automated two-point calibration, demonstrating potential situ monitoring. Lastly, successfully applied to measure mineral nutrients plant sap samples.
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ژورنال
عنوان ژورنال: Chemosensors
سال: 2023
ISSN: ['2227-9040']
DOI: https://doi.org/10.3390/chemosensors11010048