Figure 1.
Scanning electron microscopy (SEM) images of the freeze dried (FD) sorbent. (a) External surface. (b) Cross-section area. (c,d) Energy dispersive X-ray (EDX) analysis of the cross-section area of the beads.
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.