Parameters | Spectrophotometric method | Fluorimetric method | |||
---|---|---|---|---|---|
AZN | Fo − F AZN | Fo/F AZN | Fo − F RSGL | Fo/F RSGL | |
λnm | 238 | λem 528 | λem 528 | λem 528 | λem 528 |
Conc. range (μg/mL) | 5–30 | 0.001–0.005 | 0.001–0.005 | 0.001–0.005 | 0.001–0.005 |
Regression equation | |||||
aa | -0.0364 | 15.298 | 1.041 | 31.59 | 0.755 |
bb | 0.012 | 5178 | 16.68 | 81.95 | 4.805 |
rc | 0.9996 | 0.9995 | 0.9998 | 0.9997 | 0.9997 |
Sa | 0.00338 | 0.302 | 0.4507 | 0.654 | 0.036 |
Sb | 0.00017 | 91.14 | 0.00149 | 1.979 | 0.108 |
Sb2 | 2.89 × 10−8 | 8306.49 | 2.22 × 10−6 | 3.916 | 0.0118 |
Sb % | 1.491 | 0.0058 | 0.0089 | 0.798 | 0.749 |
LOD | 0.928 | 0.00019 | 0.0002 | 0.026 | 0.0247 |
LOQ | 2.81 | 0.00058 | 0.0008 | 0.079 | 0.0749 |
Significance F | 0.00022235 | 1.2 | 4.33 | 0.0153 | 0.0144 |
F | 4495.82 | 3227.21 | 1369.82 | 1714.1 | 1948.43 |
Accuracy (mean ± RSD%) | 99.60 ± 0.82 | 100.29 ± 0.18 | 99.72 ± 0.33 | 99.84 ± 0.42 | 101.03 ± 0.44 |
Precision (RSD%) | |||||
Intraday precision | 1.07 | 0.17 | 0.40 | 0.33 | 0.49 |
Inter day precision | 0.58 | 0.19 | 0.41 | 0.51 | 0.36 |