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. Author manuscript; available in PMC: 2008 Sep 22.
Published in final edited form as: Anal Chem. 2005 Oct 15;77(20):6719–6728. doi: 10.1021/ac050987t

Fig. 1.

Fig. 1

Absorption spectra of Al[OEP] based optical Films 1, 2, and 3 measured in 50 mM glycine-phosphate buffer, pH 3.00. Dashed line represents the optical spectra of Film-2 when exposed to 10 mM fluoride ion concentration prepared in the same buffer.