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. 2013 Jun 6;8(6):e65826. doi: 10.1371/journal.pone.0065826

Figure 2. Estrogens were oxidized by chemical means as described in Materials and method.

Figure 2

UV spectra and plot presenting decay of estrone quinone methide (E1QM) (A) and estradiol quinone methide (E2QM) (B). Observed t 1/2 for E1QM and E2QM was 20.8 and 4.5 min respectively.