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Table 3 Regression data of nine compounds

From: Analysis of nine compounds from Alpinia oxyphyllafruit at different harvest time using UFLC-MS/MS and an extraction method optimized by orthogonal design

Compounds

Range (ng/mL)

Linear regression equation

Correlation coefficient

LOD (ng mL−1)

LOQ (ng mL−1)

Nootkatone

2.00-1000.00

Y = 5910X + 2790

0.9979

0.60

2.00

Yakuchinone A

2.00-1000.00

Y = 7090X + 12100

0.9997

0.60

2.00

Yakuchinone B

2.00-1000.00

Y = 8100X + 6050

0.9901

0.60

2.00

Oxyphyllacinol

5.83-1165.00

Y = 763X + 1130

0.9903

1.75

5.83

Tectochrysin

2.07-1135.00

Y = 16300X + 8780

0.9973

0.62

2.07

Izalpinin

5.00-1000.00

Y = 2160X + 2190

0.9908

1.50

5.00

Chrysin

2.00-1000.00

Y = 5010X + 3010

0.9919

0.60

2.00

Kaempferide

2.16-1080.00

Y = 1040X + 1470

0.9885

0.65

2.16

Apigenin-7,4-dimethylether

5.00-1000.00

Y = 165X + 375

0.9861

1.50

5.00