An official website of the United States government
Here's how you know
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.
Colorimetric testing for system selectivity in the presence of interfering compounds; left: for AgNPs/PVP; right: for AgNPs/PVA; In the presence of 50 μM of each compound. The presence of creatinine in the solution, causing discoloration and decrease the amount of G + Gr