金电极 巯基乙胺？ 请问楼主金电极活化是如何做的？可能没活化好。 In summary, in the first step the previously bound thiol molecules were desorbed from the surface using cyclic voltammetry (CV) in 100 mM NaOH under anaerobic conditions (100 scans from ?500 to ?1500 mV at a scan rate of 100 mV s?1), and then the electrodes were polished mechanically using a polishing pad and alumina slurry (particle size 1 and 0.3 μm, each for 5 min) and left after short sonication in a hot piranha solution for 20 min (H2O2 and H2SO4 at 1:3 ratio, caution: handle with special care). Next, CV was performed again in 100 mM H2SO4 (25 scans from ?200 to +1500 mV at a scan rate of 100 mV s?1) for the electrochemical polishing and gold oxide stripping (10 scans, from +750 to +200 mV at a scan rate of 100 mV s?1)，查看更多
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