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.
Variation of biosensitivity compounds extracted from coalbed-produced waters before and after microbial degradation (a) Relationship between Pr/n-C17 and Ph/n-C18.36 (b) Substance content of n-alkane, tricyclic terpane, hopance, and sterane.
