Table 2.
Parameters | Surfactant Sensor with Plasticizer | |||||
---|---|---|---|---|---|---|
P1 | P2 | P3 | P4 | P5 | P6 | |
Slope, mV/decade of activity | 58.78 ± 0.6 | 53.61 ± 1.1 | 56.61 ± 0.5 | 50.6 ± 1.0 | 50.67 ± 1.1 | -/- |
Standard error | 0.4 | 0.6 | 0.3 | 0.7 | 0.7 | -/- |
Correlation coefficient, R2 | 0.9935 | 0.9993 | 0.9992 | 0.9964 | 0.9965 | -/- |
Detection limit, M | 2.1 × 10−7 | 4.2 × 10−7 | 0.1 x 10−6 | 0.2 × 10−6 | 0.1 x 10−6 | -/- |
Useful conc. Range, M | 3.2 × 10−3–3.9 × 10−7 | 3.2 × 10−3–5.9 x 10−7 | 3.2 × 10−3–1.2 × 10−6 | 3.2 × 10−3–1.6 × 10−6 | 3.2 × 10−3–1.2 × 10−6 | -/- |