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.
Square wave voltammetry 10 ppm of TNT in air saturated phosphate buffered saline (PBS) buffer measured at a fabricated epitaxial graphene working electrode on SiC (red), with oxygen modification (90 mTorr) (blue) and with nitrogen modification 50 mTorr (brown). The green trace is the background signal without TNT. Frequency = 60 Hz and Amplitude = 25 mV.
