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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. 7.

Fig. 7

Absorbance changes of Al[OEP]/ETH-7075 based fluoride optical sensitive films, at λmax of the deprotonated from of the pH chromoionophore, as a function of fluoride ion concentration using different film compositions: Film-4 (●), Film-5 (■), and Film-6 (▲)