1.
Orig Life
; 10(1): 51-60, 1980 Mar.
Artículo
en Inglés
| MEDLINE
| ID: mdl-7366956
RESUMEN
Organic matter sedimented within salt deposits from the Carboniferous Perm epoch has been investigated for hydrocarbons by gas-liquid-chromatography, mass spectrometry, and spectropolarimetry. Main constituents were made of aliphatic and olefinic hydrocarbons which retained a considerable part of their optical activity thus resisting complete racemization over 250 mio years.
Asunto(s)
Hidrocarburos/análisis , Cromatografía de Gases , Alemania Occidental , Espectrometría de Masas , Polarografía , Cloruro de Sodio
2.
AMB Rev Assoc Med Bras
; 19(10): 393-6, 1973 Oct.
Artículo
en Portugués
| MEDLINE
| ID: mdl-4544593
3.
Matern Infanc (Sao Paulo)
; 28(4): 295-333, 1969.
Artículo
en Portugués
| MEDLINE
| ID: mdl-5394208