Figure 4.
Effect of Cr RH 40 volume (1% w/v) on fluorescence intensity of PTB (40 ngmL−1).
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.