Table 1 Retention time, m/z values of ions of reference standards

1

Liquiritigenin

C₁₅H₁₂O₄

257.0809[M + H]⁺, 239.0698[M + H–H₂O]⁺, 137.0234 [C₇H₄O₃ + H]⁺, 121.0293 [C₈H₈O + H]⁺, 120.0721 [C₇H₄O₃ + H–OH]⁺

2

Benzoylmesaconine

C₃₁H₄₃NO₁₀

–

–

590.2952[M + H]⁺, 572.2832[M + H–H₂O]⁺, 558.2683[M + H-CH₃OH]⁺, 540.2580[M + H–CH₃OH–H₂O]⁺

3

Benzoylaconine

C₃₂H₄₅NO₁₀

–

–

604.3130[M + H]⁺, 586.2995[M + H–H₂O]⁺, 572.2852[M + H–CH₃OH]⁺

554.2735[M + H–2H₂O]⁺, 540.2577[M + H–CH₃OH]⁺, 522.2475[M + H–2CH₃OH–H₂O]⁺

4

Benzoylhypaconine

C₃₁H₄₃NO₉

–

–

574.3003[M + H] + , 542.2741[M + H–CH₃OH]⁺, 524.2615[M + H–CH₃OH–H₂O]⁺, 510.2477[M + H–2CH₃OH]⁺

5

Mesaconitine

C₃₃H₄₅NO₁₁

–

–

632.3064[M + H]⁺, 600.2787[M + H–CH₃OH]⁺, 572.2853[M + H–AcOH]⁺, 540.2594[M + H–AcOH–CH₃OH]⁺, 512.2637[M + H–AcOH–CH₃OH–CO]⁺,

6

Isoliquiritigenin

C₁₅H₁₂O₄

257.0809[M + H]⁺, 239.0692[M + H–H₂O]⁺, 137.0235[C₇H₄O₃ + H]⁺, 121.0287 [C₈H₈O + H]⁺, 120.0514 [C₇H₄O₃ + H–OH]⁺

7

Atractylenolide II

C₁₅H₂₀O₂

233.1538[M + Na]⁺, 215.1440[M + Na–H₂O]⁺, 187.1484[M + Na–CH₂O₂]⁺, 159.1165[M + Na–CH₂O₂–C₂H₄]⁺, 145.101 [M + Na–CH₂O₂–C₃H₆]⁺

131.0856[M + Na–CH₂O₂–C₄H₈]⁺, 105.0702[M + Na–CH₂O₂–C₄H₈–C₂H₂]⁺,

8

Glycyrrhizic acid

C₄₂H₆₂O₁₆

845.3947[M + Na]⁺, 669.3614[M + Na–(GluA–H₂O)]⁺

9

Glycyrrhetinic acid

C₃₀H₄₆O₄

471.3458[M + H]⁺, 453.3349[M + H–H₂O]⁺, 435.3244[M + H-2H₂O]⁺