NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Formation of amino acids by cobalt-60 irradiation of hydrogen cyanide solutionsExperiments were conducted to study the pathway for the prebiotic origin of amino acids from hydrogen cyanide (HCN) under the action of ionizing radiation considered as an effective source of energy on the primitive earth. The irradiations were performed in a cobalt-60 source with a dose rate of 200,000 rad/hr. Seven naturally occurring amino acids are identified among the products formed by the hydrolysis of gamma-irradiated solutions of HCN: glycine, alanine, valine, serine, threonine, aspartic acid, and glutamic acid. The identity of these amino acids is established by gas chromatography and mass spectrometry. Control experiments provided evidence that the amino acids are not the result of contamination.
Document ID
19770035039
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Sweeney, M. A. (Maryland Univ. College Park, MD, United States)
Toste, A. P. (Santa Clara, University Santa Clara, Calif., United States)
Ponnamperuma, C. (Maryland, University College Park, Md., United States)
Date Acquired
August 9, 2013
Publication Date
August 1, 1976
Publication Information
Publication: Origins of Life
Volume: 7
Subject Category
SPACE BIOLOGY
Funding Number(s)
CONTRACT_GRANT: NGR-21-002-317
Distribution Limits
Public
Copyright
Other