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Table 1 Linear regression and MRM parameters of standards

From: Investigation of metabolites accumulation in medical plant Gentiana rigescens during different growing stage using LC-MS/MS and FT-IR

Analytes Regression equation Linearity range (μg/mL) R2 LOD (μg/mL) LOQ (μg/mL) Ions pairs CE (eV)
Loganic acid y = 2099.0x + 19518.7 50-500 0.9996 0.34 1.01 421 > 375 27
Loganic acida y = 200150.0x + 2801.4 0.05-5 0.9997 0.004 0.022 421 > 213 22
Swertiamarin y = 2151.2x + 11429.0 10-150 0.9998 0.27 0.92 419 > 179 18
Swertiamarina y = 169057.0x + 3753.2 0.1-5 0.9995 0.005 0.027 419 > 141 23
Gentiopicroside y = 1494.4x + 21722.0 5-1500 0.9995 0.23 1.03 401 > 197 14
- - - - - - 401 > 89 21
Swerosidea y = 292679.0x + 5034.6 0.5-10 0.9992 0.008 0.037 359 > 197 −31
- - - - - - 359 > 127 −10
Isoorientin y = 2945.4x-6172.4 5-250 0.9993 0.57 2.33 447 > 327 27
Isoorientin a y = 278957.0x + 4532.8 0.05-5 0.9994 0.007 0.041 447 > 357 23
Isovitexin y = 1979.7x + 19518.7 5-250 0.9998 0.63 1.97 431 > 311 24
Isovitexin a y = 409813.0x + 1523.7 0.05-5 0.9996 0.007 0.037 431 > 331 22
  1. -: not mentioned
  2. a: determination by MRM