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. Author manuscript; available in PMC: 2016 Mar 9.
Published in final edited form as: J Nat Prod. 2014 Mar 11;77(4):902–909. doi: 10.1021/np4009706

Figure 5.

Figure 5

UPLC-MS-ELSD-PDA analysis of lead 79863-c9 (obtained from the leaves of Thuja occidentalis). a: ELSD chromatogram showing compounds 8 and 11 with retention times of 1.18 and 1.20 min, respectively; b: PDA chromatogram showing compounds 4, 8 and 11 with retention times of 0.92, 1.15, and 1.17 min, respectively; c and d: positive and negative ESIMS total-ion chromatograms (TIC), respectively; e and f: positive ESIMS spectra of 8 and 11 with retention times of 1.17 and 1.20 min, respectively; and g: UV spectrum of 11. UPLC conditions: Acquity UPLC BEH C18 column (2.1 × 50 mm, 1.7 μm); gradient elution starting at 10%, ramping to 45% in 0.2 min, then to 100% MeOH in water with 0.1% HCOOH in 1.1 min at a flow rate of 1. 0 mL/min, holding for 1.65 min.