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Table 2 Results and parameters of the UHPLC-ESI-QqQ-MS analysis

From: Identification of benzoquinones in pretreated lignocellulosic feedstocks and inhibitory effects on yeast

Compound Rt (min) Precursor ion Transitiona CE (eV) Cell Acc (V) R2 Slope LOD/LOQ (µmol/l)
p-Benzoquinone
  17.5 286.9 166.8 15 3 0.99 28,263 2.939 × 10−3
    108.9      9.979 × 10−3
2,6-Dimethoxy-1,4-benzoquinoneb
  14.4 346.8 166.8 20 3 0.96 347,852 7.116 × 10−3
    108.8      2.135 × 10−3
  1. Rt retention time, CE collision energy, Cell Acc cell acceleration, LOD & LOQ limits of dectection and quantification
  2. aThe upper (first row) transition masses were used for quantification and the lower (second row) for qualification purposes
  3. bThe R2 and slope values for DMBQ are derived from a four-point calibration