Figure 3.
TSNA surface concentration determined in experiments performed with (A) cellulose and (B) cotton specimens. Bars represent the average of two measurements, and the error bars show the absolute difference between determinations.
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.