Research Article
Fluorescent Sensors Based on Organic Polymer-Capped Gold Nanoparticles for the Detection of Cr(VI) in Water
Figure 1
(a) The fluorescence intensity ratio (/) and (b) fluorescence responses in the presence of 20 μM Cr (VI) at different pH values of F-hPEI-capped Au NPs; (c) the fluorescence intensity ratio (/) at different dilution times of F-hPEI-capped Au NPs, and (d) fluorescence responses in the presence of 4.0 μM Cr (VI) for 40 and 50 dilution times of F-hPEI-capped Au NPs. The error bars represent the standard deviation of three measurements.
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