Table 5.
Statistics of the response characteristics of the P1–P6 surfactant sensors to DMIC, given together with ±95% confidence limits.
| Parameters | Surfactant Sensor with plasticizer | |||||
|---|---|---|---|---|---|---|
| P1 | P2 | P3 | P4 | P5 | P6 | |
| Slope, mV/decade of activity | 58.4 ± 0.6 | 59.6 ± 0.7 | 54.6 ± 0.7 | 55.1 ± 0.7 | 55.9 ± 0.5 | 32.9 ± 0.4 |
| Standard error | 0.2 | 0.4 | 0.2 | 0.4 | 0.7 | 0.6 |
| Correlation coefficient, R2 | 0.9994 | 0.9997 | 0.9998 | 0.9997 | 0.9999 | 0.9994 |
| Detection limit, M | 2.1 × 10−7 | 4.2 × 10−7 | 5.7 × 10−7 | 0.9 × 10−6 | 0.1 × 10−6 | 2.9 × 10−6 |
| Useful conc. Range, M | 3.2 × 10−3–3.9 × 10−7 | 3.2 × 10−3–5.9 × 10−7 | 3.2 × 10−3–7.9 × 10−7 | 3.2 × 10−3–2.6 × 10−6 | 3.2 × 10−3–1.2 × 10−6 | 3.2 × 10−3–4.9 × 10−6 |