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Overview of all hydrogel-based ethanol sensors including their measurement tasks.
| Sensors | Sensors Were Used for |
|---|---|
| Sensor #1–#2 | Determination of the measuring range (Section 3.1) |
| Sensor #3–#5 | Cross-sensitivity to different salt concentrations (Section 3.2) |
| Sensor #6–#8 | Cross-sensitivity to different pH values (Section 3.3) |
| Sensor #9–#14 | Preparation of calibration curves, measurement of vodka samples (Section 3.4), and calculation of the LoD and LoQ (Section 3.5) |
