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Table 2 Intra-day and inter-day precision 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 Day 1 (n=6) Day 2 (n=6) Day 3 (n=6) Inter-day (n=18)
Mean ± SD (ng/mL) RSD (%) Mean ± SD (ng/mL) RSD (%) Mean ± SD (ng/mL) RSD (%) Mean ± SD (ng/mL) RSD (%)
Nootkatone 79.7 ± 2.0 2.51 75.9 ±1.0 1.32 75.0 ± 0.6 0.80 77.2±2.6 3.37
Yakuchinone A 820 ± 32 3.90 833 ± 23 2.76 786 ± 36 4.58 815 ± 34 4.17
Yakuchinone B 36.5 ± 0.9 2.47 36.8 ± 1.5 4.08 33.0 ± 1.3 3.94 35.7 ± 1.9 5.32
Oxyphyllacinol 613 ± 28 4.57 625± 12 1.92 620 ± 25 4.03 619 ± 22 3.55
Boldine 346 ± 12 3.47 338 ± 13 3.85 325 ± 18 5.54 338 ± 16 4.73
Norisoboldine 280 ± 10 3.57 279 ± 9 3.23 262 ± 8 3.05 270 ± 12 4.44
Linderane 20.8 ± 0.4 1.92 20.4 ± 0.7 3.43 19.1 ± 0.8 4.19 20.2 ± 0.9 4.46
Isolinderalactonea 121 ± 6 4.96 115 ± 4 3.48 114 ± 1 0.88 117 ± 5 4.27
Atractylenoide III 63.3 ± 2.2 3.48 61.2 ± 1.3 2.12 63.4 ± 2.8 4.42 62.6 ± 2.3 3.67
Tectochrysin 466 ± 17 3.65 465 ± 9 1.94 430 ± 20 4.65 456 ± 22 4.82
Izalpinin 78.3 ± 0.9 1.15 78.8 ± 1.2 1.52 75.9 ± 0.2 0.26 77.8 ± 1.6 2.06
Chrysin 29.9 ± 0.9 3.01 30.7 ± 1.5 4.89 29.3 ± 0.4 1.37 30.0 ± 1.1 3.67
Apigenin-4’,7-dimethylther 672 ± 28 4.17 653 ± 17 2.60 610 ± 9 1.48 649 ± 33 5.08
Kaempferide 53.5 ± 1.8 3.36 53.5 ± 0.7 1.31 52.6 ± 1.6 3.04 53.3 ± 1.4 2.63
  1. Note: aConcentration unit: μg/mL.