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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