Table 6.
Determination of AC concentrations inSECTRAL®200 mg/tablets samples using AC-PM-MWCNTs functionalized AC-PM-MWCNTs-Al2O3 nanocomposite sensor.
|
Statistical analysis |
SECTRAL®200 mg/tablets samples |
|||||
| AC-PM-MWCNTs sensor |
functionalized AC-PM-MWCNTs-Al2O3 nanocomposite sensor |
|||||
| Takenb |
Foundb |
% Recovery |
Takenb |
Foundb |
% Recovery |
|
| 7 | 6.96 | 99.43 | 8 | 7.95 | 99.38 | |
| 6 | 5.94 | 99.00 | 7 | 6.93 | 99.00 | |
| 5 | 4.93 | 98.60 | 6 | 5.92 | 98.67 | |
| 4 | 3.95 | 98.75 | 5 | 4.99 | 99.80 | |
| 3 | 2.95 | 98.33 | 4 | 3.96 | 99.00 | |
| 2 |
1.95 |
97.50 |
3 |
2.92 |
97.33 |
|
| Mean ± SD | 98.60 ± 0.7 | 98.86 ± 0.8 | ||||
| n | 6 | 6 | ||||
| Variance | 0.49 | 0.64 | ||||
| %SEa | 0.29 | 0.33 | ||||
| %RSD | 0.71 | 0.81 | ||||
| t-test | 1.381 (2.228)c | 0.637 (2.228)c | ||||
| F-test |
1.44 (5.05)c |
1.78 (5.05)c |
||||
| Reported method [12] | 99.12 ± 0.6 | |||||
| 6 | ||||||
| 0.36 | ||||||
| 0.24 | ||||||
a
SE (%Error) = %RSD/√n.
b
Taken and Found-log [AC], mol L−1.
c
The tabulated values of ''t'' and ''F'' at confidence level p = 0.05.