Fig. 7
UPLC-MS-ELSD-PDA analysis of fraction 79575-c5 of Eugenia rigida. a ELSD chromatogram; b PDA chromatogram; c and d positive and negative ESI–MS BPI chromatograms, respectively; e, f positive ESI–MS spectra of the compounds with respective retention times of 1.87 and 1.95 min in the PDA chromatogram; g, h negative ESI–MS spectra of the compounds with respective retention times of 1.87 and 1.95 min in the PDA chromatogram; i, j UV spectra of the compounds with respective retention times of 1.87 and 1.95 min in the PDA chromatogram. UPLC conditions: Acquity UPLC BEH C18 column (2.1 × 50 mm, 1.7 μm); gradient elution with 0–100 % ACN in 0.1 % HCOOH in 3 min