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. 2010 May 10;10(5):4739–4755. doi: 10.3390/s100504739

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© 2010 by the authors; licensee MDPI, Basel, Switzerland.

This article is an open-access article distributed under the terms and conditions of the Creative Commons Attribution license (http://creativecommons.org/licenses/by/3.0/).

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Figure 2. — Dependence of imaginary component of impedance on uranyl ion concentration. The JG-A12 SLP based sensors were exposed to UO₂(NO₃)₂ and stirred continuously for 15 mins before a 30 min equilibration period. EIS scans were performed in 10 mM PBS at 0 V vs. Ag/AgCl at a perturbation of 10 mV. The signals at (▪ 10 kHz, 1 kHz, 100 Hz, 10 Hz, 1 Hz, 0.1 Hz) are shown. 10 kHz – 100 Hz all overlay each other close to zero due to the system exhibiting high resistive and low capacitive behaviour at high frequency.

Inline graphic — Dependence of imaginary component of impedance on uranyl ion concentration. The JG-A12 SLP based sensors were exposed to UO₂(NO₃)₂ and stirred continuously for 15 mins before a 30 min equilibration period. EIS scans were performed in 10 mM PBS at 0 V vs. Ag/AgCl at a perturbation of 10 mV. The signals at (▪ 10 kHz, 1 kHz, 100 Hz, 10 Hz, 1 Hz, 0.1 Hz) are shown. 10 kHz – 100 Hz all overlay each other close to zero due to the system exhibiting high resistive and low capacitive behaviour at high frequency.