Analytical data for silver determined in sulphadiazine and radiological film (n = 6).
| Sample | Added μg L−1 | Founda (μg L−1) | Recovery% | t-testb | F-valueb | |
|---|---|---|---|---|---|---|
| Proposed | FAAS | |||||
| Silver sulphadiazine | 0.00 | 7.3 ± 0.3 | 7.6 ± 0.6 | — | ||
| 25.0 | 32.7 ± 0.2 | 31.9 ± 0.7 | 101.2 | 1.26 | 2.59 | |
| 50.0 | 56.9 ± 0.4 | 58.6 ± 0.9 | 98.7 | 1.18 | 2.56 | |
| 75.0 | 81.9 ± 0.5 | 82.8 ± 0.9 | 99.1 | 1.31 | 2.74 | |
| Radiological film | 0.00 | 12.5 ± 0.5 | 12.7 ± 0.9 | — | ||
| 75 | 87.2 ± 0.3 | 88.8 ± 0.8 | 99.6 | 1.67 | 3.22 | |
| 150 | 161.4 ± 0.2 | 164.8 ± 0.7 | 99.3 | 1.43 | 2.78 | |
| 225 | 240.3 ± 0.2 | 234.5 ± 0.8 | 101.1 | 1.69 | 3.37 | |
| Photographic plate | 0.00 | 45.5 ± 0.6 | 45.3 ± 1.3 | — | 1.52 | 3.03 |
| 50 | 96.2 ± 0.4 | 93.4 ± 1.1 | 100.7 | 1.46 | 2.95 | |
| 100 | 144.1 ± 0.3 | 147.6 ± 0.8 | 99.0 | 1.83 | 3.87 | |
| 150 | 196.9 ± 0.3 | 192.7 ± 0.9 | 100.7 | 1.37 | 2.98 | |
a
Results average of six consecutive measurements.
b
Theoretical values for t and F at the 95% confidence limit are 2.57 and 5.05, respectively.