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Table 7 Linear regression and precision data of vicenin-II, vicenin-I, schaftoside, isoschaftoside, and vicenin-III

From: Identification of C-glycosyl flavones by high performance liquid chromatography electrospray ionization mass spectrometry and quantification of five main C-glycosyl flavones in Flickingeria fimbriata

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