Autor: |
Lopez, Toni Beth Guatato, Palisoc, Shirley Tiong, Natividad, Michelle Tiamzon |
Zdroj: |
Sensing and Bio-Sensing Research; September 2017, Vol. 15 Issue: 1 p34-40, 7p |
Abstrakt: |
Indium tin oxide-coated glass substrates were modified with tris (2,2′-bipyridyl) ruthenium (II) dichloride hexahydrate [Ru(bpy)3]2+/Nafion® solution via dip-coating. The Nafion®—[Ru(bpy)3]2+ratio was varied to optimize the sensitivity of the modified electrodes in detecting lead (Pb2+) and cadmium (Cd2+). The surface morphology of the deposited thin film was characterized by scanning electron microscopy (SEM). The lowest concentration detected was 0.007μM (0.001μg/mL) and 4.91μM (0.552μg/mL) for lead and cadmium, respectively. The optimum Nafion® volume concentration in the film was 0.4% which gave an average film thickness of 217.90nm. |
Databáze: |
Supplemental Index |
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