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Table 1 The concentration range (min–max, ng/L) of identified plant metabolites in river water

From: Target screening of plant secondary metabolites in river waters by liquid chromatography coupled to high-resolution mass spectrometry (LC–HRMS)

Plant secondary metabolite Chemical formula CAS no. m/z (M + H+) Retention time (min) MDL (ng/L) Concentration range (min–max, ng/L) Frequency of detection
Leipzig Bode Leipzig Bode
Coumarin C9H6O2 91-64-5 147.0441 7.3 11 12 43 1 1
Esculetin C9H6O4 305-01-1 179.0336 4.2 50 116–1658 104–157 2 3
Fraxidin C11H10O5 525-21-3 223.0600 7.8 4 56–1145 19–155 9 8
Scopoletin C10H8O4 92-61-5 193.0496 7.1 2 9–47 7–49 9 9
Bergapten C12H8O4 484-20-8 217.0495 10.1 4 510 541 1 1
Psoralen C11H6O3 66-97-7 187.0388 9.1 3 ND 141–224 0 2
Lycorine C16H17NO4 476-28-8 288.1225 1.0 3 1015–2331 11 2 1
Narciclasine C14H13NO7 29477-83-6 308.0765 5.7 150 507–3353 ND 2
Nicotine C10H14N2 54-11-5 163.1228 0.9 1.6 2–6 4–35 2 2
Piperine C17H19NO3 94-62-2 286.1434 11.9 0.9 1–338 4–294 4 2
Formononetin C16H12O4 485-72-3 269.0804 10.8 3 8–35 123 5 1
Coniferyl aldehyde C10H10O3 458-36-6 179.0701 7.6 8 13–46 ND 2
  1. ND not detected