Figure 6.
Figure 6. Electronic paramagnetic resonance detection of the trolox phenoxyl radical. EPR spectra of trolox in the reaction system containing 1 mM Trolox, 5% (vol/vol) DMSO (A), and 0.02 mM As2O3 (B) or 0.2 μg/mL doxorubicin (C). (D) Computer simulation of spectrum in panel B obtained using the hyperfine splitting constants: aH (CH3) = 4.56 G; aH (CH3) = 4.86 G; aH (CH3) = 0.23 G; aH (CH2) = 0.37 G; aH′ (CH2) = 0.76 G.

Electronic paramagnetic resonance detection of the trolox phenoxyl radical. EPR spectra of trolox in the reaction system containing 1 mM Trolox, 5% (vol/vol) DMSO (A), and 0.02 mM As2O3 (B) or 0.2 μg/mL doxorubicin (C). (D) Computer simulation of spectrum in panel B obtained using the hyperfine splitting constants: aH (CH3) = 4.56 G; aH (CH3) = 4.86 G; aH (CH3) = 0.23 G; aH (CH2) = 0.37 G; aH′ (CH2) = 0.76 G.

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