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Table 3 Repeatability, intraday and interday precisions, and stability, recovery of 5 representative compounds from Dendrobium officinale

From: Simultaneous identification and determination of flavonoids in Dendrobium officinale

Compounds Repeatability RSD (%) (n = 6) Precisions Stability
RSD (%) (n = 6)
Recovery (%)
Intra-day (n = 6) Inter-day (n = 3) Content (μg) Spiked (μg) Found (μg) mean ± SD RSD (%)
Apigenin-6,8-di-C-β-d-glucoside 0.61 0.50 0.80 0.43 21.62 22.21 44.62 101.54 1.24
Apigenin-6-C-β-d-xyloside-8-C-β-d-glucoside 1.10 1.31 1.28 1.31 14.51 15.20 29.93 101.04 0.93
Schaftoside 2.60 1.84 2.32 2.13 2.90 2.81 5.90 102.11 2.93
Isoviolanthin 1.38 1.37 1.65 1.45 39.37 39.44 78.95 100.81 1.16
Rutin 1.50 2.57 2.45 2.190 6.61 6.32 12.91 100.72 1.84