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. Author manuscript; available in PMC: 2018 Apr 17.
Published in final edited form as: Chem Res Toxicol. 2017 Mar 22;30(4):1093–1101. doi: 10.1021/acs.chemrestox.6b00457

Figure 6.

Figure 6

Detection of O-bismethyl-O-monoglucuronosyl-retene-bis-catechols in human HepG2 cells. (A) Extracted ion chromatogram of Orbitrap full scan in the positive mode at 0 h. (B) Extracted ion chromatogram of Orbitrap full scan in the positive mode at 24 h and MS spectrum of the peak at 20.29 min. (C) Extracted ion chromatogram of Orbitrap full scan in the negative mode at 0 h. (D) Extracted ion chromatogram of Orbitrap full scan in the negative mode at 24 h and MS spectrum of the peak at 18.94 min. The samples were prepared as described in the legend to Figure 1 and were subsequently analyzed on an Orbitrap LC-MS/MS.