Table 3.
Determination of precision in cranberry samples.
| Compound | Mean Amount µg/g DW ± SD | Intra-Day Precision (%RSD, n = 6) |
Inter-Day Precision (%RSD, n = 18) |
%RSDr | HorRat | |||
|---|---|---|---|---|---|---|---|---|
| Retention Time | Amount | Retention Time | Amount | |||||
| No. | Vaccinium oxycoccos | |||||||
| 1 | Maslinic acid | 94.50 ± 2.97 | 0.10 | 1.62 | 0.25 | 3.14 | 8.03 | 0.39 |
| 2 | Corosolic acid | 282.22 ± 5.69 | 0.11 | 1.25 | 0.26 | 2.05 | 6.82 | 0.30 |
| 3 | Oleanolic acid | 1690.11 ± 31.64 | 0.11 | 0.78 | 0.35 | 1.87 | 5.21 | 0.36 |
| 4 | Ursolic acid | 8182.00 ± 121.72 | 0.10 | 1.00 | 0.36 | 1.49 | 4.11 | 0.36 |
| 5 | β-Amyrin | <LOD | – | – | – | – | – | – |
| 6 | Campesterol | 66.18 ± 5.88 | 0.11 | 3.16 | 0.44 | 8.88 | 8.47 | 1.05 |
| 7 | α-Amyrin | 162.59 ± 6.41 | 0.06 | 1.96 | 0.53 | 3.95 | 7.40 | 0.53 |
| 8 | β-Sitosterol | 1244.24 ± 19.75 | 0.07 | 1.59 | 0.55 | 1.71 | 5.46 | 0.31 |
| 9 | Squalene | 57.24 ± 2.02 | 0.08 | 1.29 | 0.60 | 3.53 | 8.66 | 0.41 |
| No. | Vaccinium macrocarpon | |||||||
| 1 | Maslinic acid | <LOQ | 0.34 | – | 0.31 | – | – | – |
| 2 | Corosolic acid | 84.91 ± 2.58 | 0.30 | 2.07 | 0.34 | 2.47 | 8.16 | 0.30 |
| 3 | Oleanolic acid | 1118.91 ± 20.82 | 0.46 | 1.33 | 0.43 | 1.86 | 5.54 | 0.34 |
| 4 | Ursolic acid | 5582.68 ± 88.98 | 0.48 | 1.21 | 0.44 | 1.59 | 4.36 | 0.37 |
| 5 | β-Amyrin | <LOD | – | – | – | – | – | – |
| 6 | Campesterol | <LOD | – | – | – | – | – | – |
| 7 | α-Amyrin | <LOQ | 0.78 | – | 0.61 | – | – | – |
| 8 | β-Sitosterol | 1176.18 ± 21.34 | 0.88 | 0.90 | 0.68 | 1.81 | 5.50 | 0.33 |
| 9 | Squalene | 10.97 ± 1.23 | 0.20 | 8.81 | 0.56 | 11.20 | 11.09 | 1.01 |