Table 3.
Intra- and inter- day repeatability for determination of nine triterpenoids in P. guajava.
| Analytes | Intra-Day (n = 6) | Inter-Day (n = 3) | ||
|---|---|---|---|---|
| Content | RSD (%) a | Content | RSD (%) | |
| 1 | 4.30 ± 0.06 | 1.35 | 4.48 ± 0.20 | 4.50 |
| 2 | 3.6 ± 0.10 | 2.84 | 3.64 ± 0.01 | 0.39 |
| 3 | 19.27 ± 0.14 | 0.70 | 19.4 ± 0.86 | 4.44 |
| 4 | 0.7 ± 0.03 | 4.97 | 0.70 ± 0.01 | 1.81 |
| 5 | 1.25 ± 0.04 | 2.94 | 1.22 ± 0.03 | 2.18 |
| 6 | 0.77 ± 0.03 | 4.20 | 0.77 ± 0.02 | 2.70 |
| 7 | 1.63 ± 0.05 | 3.25 | 1.60 ± 0.03 | 1.90 |
| 8 | ND b | NA b | ND | NA |
| 9 | 4.26 ± 0.05 | 1.21 | 4.35 ± 0.17 | 3.96 |
a RSD% = (S.D./mean) × 100%; b ND: Not detected; NA: Not adapted.