Linear regression equations of the net current (ΔI) and the COD concentration for the organic solutions of aniline, rhodamine B, and potassium hydrogen phthalate
| . | Aniline . | Rhodamine B . | Potassium hydrogen phthalate . | |||
|---|---|---|---|---|---|---|
| Voltage (V·vs. SCE) . | Linear regression equation (ΔI, μA; COD, mg/L) . | R2 . | Linear regression equation (ΔI, μA; COD, mg/L) . | R2 . | Linear regression equation (ΔI, μA; COD, mg/L) . | R2 . |
| 2 | ΔI = 0.59·COD + 14.31 | 0.991 | ΔI = 0.53·COD + 11.50 | 0.996 | ΔI = 0.49·COD + 7.90 | 0.996 |
| 2.5 | ΔI = 2.81·COD + 1,933.90 | 0.993 | ΔI = 1.52·COD + 183.12 | 0.997 | ΔI = 1.35·COD + 143.18 | 0.995 |
| 3 | ΔI = 13.41·COD + 619.34 | 0.992 | ΔI = 10.86·COD + 600.29 | 0.985 | ΔI = 8.80·COD + 459.76 | 0.995 |
| 3.5 | ΔI = 13.56·COD + 1,278.68 | 0.998 | ΔI = 11.68·COD + 994.56 | 0.990 | ΔI = 10.62·COD + 731.96 | 0.982 |
| . | Aniline . | Rhodamine B . | Potassium hydrogen phthalate . | |||
|---|---|---|---|---|---|---|
| Voltage (V·vs. SCE) . | Linear regression equation (ΔI, μA; COD, mg/L) . | R2 . | Linear regression equation (ΔI, μA; COD, mg/L) . | R2 . | Linear regression equation (ΔI, μA; COD, mg/L) . | R2 . |
| 2 | ΔI = 0.59·COD + 14.31 | 0.991 | ΔI = 0.53·COD + 11.50 | 0.996 | ΔI = 0.49·COD + 7.90 | 0.996 |
| 2.5 | ΔI = 2.81·COD + 1,933.90 | 0.993 | ΔI = 1.52·COD + 183.12 | 0.997 | ΔI = 1.35·COD + 143.18 | 0.995 |
| 3 | ΔI = 13.41·COD + 619.34 | 0.992 | ΔI = 10.86·COD + 600.29 | 0.985 | ΔI = 8.80·COD + 459.76 | 0.995 |
| 3.5 | ΔI = 13.56·COD + 1,278.68 | 0.998 | ΔI = 11.68·COD + 994.56 | 0.990 | ΔI = 10.62·COD + 731.96 | 0.982 |