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.
GSA first-order indices (Si) for the prediction of the Freundlich parameters for negatively charged and polar compounds. Abbreviations: carbon content (C, %), molar ratios H/C and O/C, SSA (m2/g), and abundance of ionized negatively charged species (A–, %), E (excess molar refraction), S (dipolarity/polarizability), A (H-bond acidity), B (H-bond basicity), and V (molar volume).
