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Potentiometric sensitivity of the sensors calculated between 10−5 and 10−3 M (±3 mV/dec).
| Zeolite (Sensor) | Na+ | K+ | NH4+ | Mg2+ | Ca2+ |
|---|---|---|---|---|---|
| Na-X (s1) | 24 | 37 | 37 | 19 | 35 |
| K-X (s2) | 31 | 30 | 34 | 72 | 22 |
| Na-Y (s3) | 42 | 70 | 39 | 13 | 15 |
| K-Y (s4) | 38 | 56 | 42 | 19 | 15 |
| Na-A (s5) | 29 | 34 | 14 | 15 | 5 |
| K-A (s6) | 23 | 31 | 6 | 45 | −6 |
| NH4-MOR (s7) | 47 | 57 | 34 | 28 | 12 |
| NH4-BEA-12 (s8) | 21 | 12 | 23 | 30 | 15 |
| NH4-BEA-19 (s9) | 30 | 35 | 27 | 29 | 8 |
| NH4-ZSM-5 (s10) | 18 | 42 | 20 | 11 | 6 |
| K-LTL (s11) | 33 | 58 | 35 | 53 | 20 |
| CLPT (s12) | 19 | 46 | 40 | 43 | 11 |
