Table 2 Calibration curves, LOD and LOQ data of six anthraquinone glycosides by UPLC-PDA
From: Evaluation of the content variation of anthraquinone glycosides in rhubarb by UPLC-PDA
Analytes | Calibration curves | r2 | Linear range (μg/mL) | LOD (μg/mL) | LOQ (μg/mL) |
|---|---|---|---|---|---|
Aloeemodin-8-O-glucoside | y = 6082.4x − 3123.6 | 0.9998 | 5.00–420.00 | 0.08 | 0.25 |
Rhein-8-O-glucoside | y = 1959.5x + 1833.5 | 0.9999 | 9.89–830.40 | 0.06 | 0.17 |
Emodin-1-O-glucoside | y = 4298.9x + 7032.7 | 0.9998 | 5.07–425.60 | 0.1 | 0.29 |
Chrysophanol-1-O-glucoside | y = 4680.6x + 4860 | 0.9996 | 9.94–835.20 | 0.08 | 0.23 |
Chrysophanol-8-O-glucoside | y = 4359.2x + 5166.2 | 0.9997 | 10.08–846.40 | 0.05 | 0.14 |
Emodin-8-O-glucoside | y = 3328.6x + 15721 | 0.9994 | 5.90–496.00 | 0.22 | 0.67 |