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Table 1 Concentration of the detected metabolites in both river waters and plant extracts

From: Non-target screening for detecting the occurrence of plant metabolites in river waters

Metabolites Formula CAS no Precursor ion (m/z) Retention time (min) MDL (µg/L) River water Plant extracts
Detection frequency Concentration range (min–max, µg/L) Detection frequency Aqueous extractable concentration range (min–max, µg/g)
Adenine C5H5N5 73-24-5 136.0619 0.8 0.2 7 0.4–2.6 5 35.0–59.3
Alpinetin C16H14O4 36052-37-6 271.0962 10.3 0.004 2 0.023–0.050 0 ND
Apiin C26H28O14 26544-34-3 565.1547 9.1 0.5 4 1.2–5.1 1 21.7
Cynaroside C21H20O11 5373-11-5 449.1073 8.6 0.050 5 0.2–2.1 3 11.1–50.6
Guanosine C10H13N5O5 118-00-3 284.0984 1.0 0.2 4 1.1–4.0 5 42.8–189.5
Hyperoside C21H20O12 482-36-0 465.1017 8.6 0.3 2 3.8–4.0 2 18.9–22.6
Isofraxidin C11H10O5 486-21-5 223.0599 7.4 0.014 7 0.020–0.300 5 0.01–16.8
Kaempferitrin C27H30O14 482-38-2 579.171 9.3 0.050 1 0.9 0 ND
Kaempferol C15H10O6 520-18-3 287.0548 10.6 3 NQ 3 NQ
Nicotiflorin C27H30O15 17650-84-9 595.165 9.2 0.2 3 1.9–2.2 1 88.0
Quercetin C15H10O7 117-39-5 303.0496 8.6 0.6 2 1.9–2.5 2 54.6–74.7
Trifolin C21H20O11 23627-87-4 449.1073 9.1 0.2 3 0.3–2.9 4 25.0–36.0
  1. NQ not quantified, ND not detected, MDL method detection limit