Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
(A) Cyclic voltammograms recorded on GR/ABPE in 10 μM 4-NP and 0.1 M HCl solution with different pH values (from a to g are 0.30, 0.40, 0.52, 0.70, 1.00, 1.30, 1.70, respectively, scan rate: 0.1 V s−1); (B) the peak current and pH relationship while error bars represent SD, n = 3 (curve a); the linear relationship between the peak potential and pH (curve b).
