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) Effect of the pH in detection of 10−4 M histamine in 10−2 M PBSs with different pHs. Electrochemical experiments were carried out at +0.4 V in triplicate (RSD = 2.24%); (b) Variation of biosensor response versus the amount of DAO immobilized on surface. Measurements were performed at +0.4 V in triplicate (RSD = 4.46%) in 10−4 M histamine solution (electrolyte support 10−2 M PBS of pH = 7.4).
