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. Author manuscript; available in PMC: 2012 Apr 1.
Published in final edited form as: Anal Chem. 2011 Mar 3;83(7):2547–2553. doi: 10.1021/ac102826k

Figure 1.

Figure 1

Fluorimetric analysis of the nanoceria-mediated oxidation of ampliflu at different pH. a) In the pH range 6–8, the fluorescence intensity at 585 nm increases with time, reaching a plateau after 6 hours (360 mins).In the pH range 1–5, fluorescence starts to develop within the first hours, but decreases right after 100 minutes, reaching zero after 3 hours (180 minutes). b) Photograph taken under UV illumination of vials containing nanoceria within the pH-range 1–8 after 1 or 6 hours of incubation at the corresponding pH.