1.
Biomed Mass Spectrom
; 1(6): 412-4, 1974 Dec.
Artigo
em Inglês
| MEDLINE
| ID: mdl-4462877
2.
Biomed Mass Spectrom
; 1(6): 415-7, 1974 Dec.
Artigo
em Inglês
| MEDLINE
| ID: mdl-4462878
3.
Biomed Mass Spectrom
; 1(3): 172-4, 1974 Jun.
Artigo
em Inglês
| MEDLINE
| ID: mdl-4433735
4.
Arch Mikrobiol
; 88(2): 127-33, 1973.
Artigo
em Inglês
| MEDLINE
| ID: mdl-4684074
5.
Science
; 167(3918): 753-4, 1970 Jan 30.
Artigo
em Inglês
| MEDLINE
| ID: mdl-17781578
RESUMO
A 50-gram sample of lunar fines was subjected to stepwise extraction in a mixture of benzene and methanol while intact, after being pulverized, and after being digested in hydrofluoric acid. None of these three extracts contained detectable quantities of C(15) to C(30) alkanes. No C(15) to C(30) alkane was present in this lunar sample at a concentration exceeding I part per billion by weight.
6.
Science
; 154(3747): 377-80, 1966 Oct 21.
Artigo
em Inglês
| MEDLINE
| ID: mdl-17751702
RESUMO
A low- amplitude, positive, Cotton effect, centered at about 340 millimicrons, has been observed in organic extracts of samples from ordinary (noncarbonaceous) chondrites. Ancillary evidence renders it likely that this optical activity derived from contamination by biologic materials on Earth.