| No. | tR (min) | Observed [M-H]- | Molecular formula | Error (ppm) | Fragment ions | Assigned identification |
| 1 | 1.74 | 195.0513 | C6H12O7 | −1.27 | 129.0191, 99.0085, 75.0088, and 59.0140 | Gluconic acid | 2 | 2.04 | 191.0199 | C6H8O7 | −1.36 | 111.0085 and 87.0091 | Citric acid | 3 | 6.073 | 153.0192 | C7H6O4 | 1.22 | 109.0289 | Dihydroxybenzoic acid | 4 | 8.81 | 137.0243 | C7H6O3 | 0.74 | 108.0215, 92.0275, 81.0349, and 53.0407 | 3,4-Dihydroxybenzaldehyde | 5 | 14.074 | 342.1702 (+) | C20H23NO4 | −0.66 | 311.1278, 297.1119, 282.0884, 265.0854, 237.0909, and 222.0667 | Magnoflorine | 6 | 17.26 | 342.1702 (+) | C20H23NO4 | −0.56 | 178.0858 | Tetrahydroprotoberberine alkaloid | 7 | 21.693 | 356.1859 (+) | C21H25NO4 | −0.61 | 192.1013, 177.0777, 165.0901, and 148.0748 | Tetrahydropalmatine | 8 | 21.88 | 342.1708 (+) | C20H23NO4 | −2.02 | 178.0861 and 151.0747 | Tetrahydroprotoberberine alkaloid | 9 | 24.677 | 187.0976 | C9H16O4 | −0.27 | 169.0860, 125.0967, 97.0657, and 57.0349 | Nonanedioic acid | 10 | 32.98 | 201.1134 | C10H18O4 | −0.76 | 139.1124, 111.0816, and 57.0355 | Sebacic acid | 11 | 40.54 | 329.2342 | C18H34O5 | −2.61 | 311.2200, 293.2098, 229.1440, 211.1336, and 171.1022 | Trihydroxy-octadecenoic acid |
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