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Table 2 Linear Calibration Range, Standard curve, LOD, and LOQ of PPIX and Mg-PPIX in Arabidopsis and tea plants

From: Simultaneous determination of protoporphyrin IX and magnesium protoporphyrin IX in Arabidopsis thaliana and Camellia sinensis using UPLC-MS/MS

Matrix

Metabolite

Linear range(mg/kg)

regression equitation (Matrix)

Correlation coefficient, R2

Matrix effect (%)

LOD (mg/kg)

LOQ (mg/kg)

Arabidopsis

PPIX

0.005-1.00

Y = 621.771X + 5.68201

0.999984

12.00%

0.001

0.005

Mg-PPIX

0.005-1.00

Y = 530.88X-6.70815

0.994277

2.32%

0.001

0.004

Tea plant

PPIX

0.005-5.00

Y = 568.914X-1.46632

0.999062

19.49%

0.001

0.005

Mg-PPIX

0.005-5.00

Y = 567.683X + 9.00217

0.994476

9.40%

0.001

0.003