1.
Science
; 213(4514): 1381-3, 1981 Sep 18.
Article
in English
| MEDLINE
| ID: mdl-17732574
ABSTRACT
Squalene, 2,6,10,15,19,23-hexamethyl-2,6,10,14,18,22-tetracosahexaene, a new biological marker, has been detected in various petroleum asphaltenes and their pyrolysis products. Since squalene is the most common triterpenoid in nature and the biological precursor of the important tetra- and pentacyclic triterpane markers, its detection in asphaltene suggests new ways for marker correlations.
2.
3.
Anal Chem
; 47(12): 2030-2, 1975 Oct.
Article
in English
| MEDLINE
| ID: mdl-1190461
Subject(s)
Bromine/analysis , Gold/blood , Iodine/analysis , Spectrometry, Fluorescence/methods , Body Fluids/analysis , Bromine/blood , Bromine/urine , Humans , Iodine/blood , Iodine/urine , X-Rays
4.
Anal Chem
; 47(12): 2032-4, 1975 Oct.
Article
in English
| MEDLINE
| ID: mdl-1190462