Figure 9.
The average cleaning efficacy of Σ7 LMW and Σ9 HMW PAHs with varying water-to-detergent ratios; the error bar represents the standard error from the mean.
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.