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Effect of humidity on photoinduced radicals in human hair

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Figure

Figure 1: Redox equilibrium between hydroquinone/quinone and semiquinone radical forms within melanin
Figure 1: Comparison of EPR signal growth upon exposure of mid-brown and natural white hair samples to the full spectrum of a 100 W Hg lamp
Figure 2: Comparison of EPR line-shape for hair samples initially and after 2 h UV exposure in dry air and 100% relative humidity  HO NH 2 OHO HO NH 2 OHO O NH 2 OHOhv*O2 RS SR 1 O 2 RS S++
Figure 4: Comparison of signal growth over 2 h UV exposure at different humidity. Corrected for mass differences, normalised to starting peak area
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