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.
Performance of the system in blood matrix diluted 6x with 0.5 M HCl. (a) calibration curve Pb concentration 3 ppb-100 ppb comparison of Nafion only vs Nafion+ MC over the physiologically relevant Pb concentration range. (b) Corresponding voltammograms obtained on SPCE/Nafion/MC modified electrode. SWASV parameters as follows: deposition potential = −1.1 V, deposition time = 900 s, step increment = 3 mV, square wave period = 30 ms, square wave amplitude = 50 mV.
