Table 2 Regression equation, correlation coefficient (R2), linear range for 5 representative compounds from Dendrobium officinale
From: Simultaneous identification and determination of flavonoids in Dendrobium officinale
Compounds | Regression equation | R2 | Linear range (ng/mL) |
|---|---|---|---|
Apigenin-6,8-di-C-β-d-glucoside | y = 1770.70x + 11.105 | 0.9997 | 9.25–1850 |
Apigenin-6-C-β-d-xyloside-8-C-β-d-glucoside | y = 1889.51x + 5.476 | 0.9998 | 8.43–1686 |
Schaftoside | y = 2046.54x + 14.891 | 0.9998 | 7.14–1428 |
Isoviolanthin | y = 1719.51x − 4.4021 | 0.9999 | 119.51–2390 |
Rutin | y = 1202.72x + 11.916 | 0.9998 | 16.50–3300 |