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Table 1 Characteristic parameters of the investigated compounds analyzed with the UFLC-MS/MS system

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 Linear ranges (ng/mL) Linear equation (weight, 1/Xor 1/X2) R 2 LOD (ng/mL)a LOQ (ng/mL)b
Nootkatone 2.0–1000 Y=3980X+13000 0.995 0.40 2.00
Yakuchinone A 2.0–2000 Y=7070X+10500 0.986 0.20 2.00
Yakuchinone B 2.0–1000 Y=7080X+5.450 0.993 0.27 2.00
Oxyphyllacinol 5.83–2330 Y=23.4X+800 0.998 5.83 11.7
Boldine 5.0–2000 Y=72.80X+59.40 0.996 2.00 5.00
Norisoboldine 1.94–1940 Y=6940X+19300 0.993 0.19 1.94
Linderane 2.16–2160 Y=3590X+630.0 0.995 0.43 2.16
Isolinderalactone 2.6–1040c Y=0.604X+0.785 0.995 1.04c 2.60c
Atractylenoide III 2.0–2000 Y=1630X+1440 0.997 2.00 5.00
Tectochrysin 2.07–2070 Y=6470X+1190 0.998 0. 21 2.07
Izalpinin 2.0–2000 Y=1490X-2460 0.998 1.00 2.00
Chrysin 2.0–2000 Y=1560X+106.0 0.996 1.00 2.00
Apigenin-4’,7-dimethylther 5.0–2000 Y=76.00X-134.0 0.994 2.00 5.00
Kaempferide 5.0–2000 Y=455.0X-710.0 0.999 2.00 5.00
  1. Note: aLimits of detection; bLimits of quantification; cConcentration unit: μg/mL.