Table 7 Linear regression and precision data of vicenin-II, vicenin-I, schaftoside, isoschaftoside, and vicenin-III
Compound | Linear regression calibration curves | R2 | Injection amount range (μg) | Repeatability RSD (%) | Precision RSD (%) | Stability RSD (%) (n = 6) | Reproducibility (n = 6) | |
|---|---|---|---|---|---|---|---|---|
Mean | RSD (%) | |||||||
Vicenin-II | Y = 1811.9 X + 15.284 | 0.9998 | 0.030–1.782 | 0.75 | 0.84 | 1.11 | 100.55 | 0.68 |
Vicenin- I | Y = 2324.2X + 38.975 | 0.9998 | 0.029–3.234 | 1.11 | 1.65 | 2.12 | 102.68 | 1.49 |
Schaftoside | Y = 2373.1 X + 17.333 | 0.9996 | 0.028–1.687 | 1.45 | 1.89 | 1.55 | 101.42 | 1.24 |
Isoschaftoside | Y = 2514.8 X + 16.737 | 0.9997 | 0.028–1.687 | 0.88 | 1.24 | 1.46 | 101.39 | 1.05 |
Vicenin-III | Y = 2282.5 X − 19.708 | 0.9999 | 0.030–3.288 | 2.19 | 1.97 | 1.87 | 100.86 | 1.21 |