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Table 3 Stability and repeatability of the investigated compounds in SQC sample

From: Quantitative analysis of the major constituents in Chinese medicinal preparation SuoQuan formulae by ultra fast high performance liquid chromatography/quadrupole tandem mass spectrometry

Analytes Stability (n=6) Repeatability (n=6)
Mean ± SD (ng/mL) RSD (%) Mean ± SD (ng/mL) RSD (%)
Nootkatone 77.3 ± 2.8 3.62 71.2 ± 2.7 3.79
Yakuchinone A 818 ± 25 3.06 811 ± 42 5.18
Yakuchinone B 36.3 ± 1.7 4.68 36.4 ± 1.8 4.95
Oxyphyllacinol 1015 ± 44 4.33 637 ± 3 0.47
Boldine 342 ± 13 3.80 315 ± 10 3.17
Norisoboldine 271 ± 13 4.80 194 ± 17 8.76
Linderane 20.6 ± 0.58 2.82 190 ± 6 3.16
Isolinderalactonea 116 ± 4 3.45 105 ± 3 2.86
Atractylenoide III 63.7 ± 1.6 2.51 86.7 ± 3.1 3.58
Tectochrysin 457 ± 20 4.38 400 ± 15 3.75
Izalpinin 78.1 ± 1.6 2.05 85.1 ± 1.5 1.76
Chrysin 29.8 ± 1.3 4.36 256 ± 13 5.08
Apigenin-4’,7-dimethylther 656 ± 32 4.88 576 ± 27 4.69
Kaempferide 53.3 ± 1.6 3.00 62.4 ± 1.1 1.76
  1. Note: aConcentration unit: μg/mL.