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.
(A) UV spectrum with different concentrations of methyl blue obtained by a laboratory microplate reader. (B) Correlation of results obtained by laboratory microplate reader and the smartphone single-stripe reader using the red channel. (C) UV spectrum with different concentrations of rhodamine B obtained by a laboratory microplate reader. (D) Correlation of results obtained by using a laboratory microplate reader and the smartphone single-stripe reader using the green channel.
