Figure 4.
Simultaneous detection of Zn, Cd, Pb, and Hg (Copyright 2019 Springer; used with permission) [28].
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.