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. Author manuscript; available in PMC: 2014 Nov 15.
Published in final edited form as: Arch Biochem Biophys. 2013 Jun 30;539(2):10.1016/j.abb.2013.06.007. doi: 10.1016/j.abb.2013.06.007

Figure 1.

Figure 1

RRS spectrum of a solution of beta-carotene in acetone (a); typical raw skin spectrum (b) featuring weak carotenoid RRS peaks superimposed on a strong fluorescence background; processed carotenoid RRS spectrum (c) obtained after subtraction of fluorescence background. Skin carotenoid C-C and C=C RRS peaks are detectable with high signal-to- noise ratios. Taken with permission from Ermakov et al.47