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.
The black boxes represent the experimental data (25, 15, 5 and −2°C; 0, 1, 1.5 and 2 M glycerol), and the vertical lines indicate the standard error.
