Research Article
Detection of Cu2+ in Water Based on Histidine-Gold Labeled Multiwalled Carbon Nanotube Electrochemical Sensor
Figure 3
Electrochemical characterization of the modifying process by CV (a) and EIS (b) [resp., (A) bare GCE; (B) after deposited AuNPs; (C) after assembled SH; (D) after modified MWCNT/AuNPs; (E) after modified histidine].
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