Detalles de publicación
PP 014074
Mass spectrometric analysis of selected radiolyzed amino acids in an astrochemical context
C. Cherubini & O. Ursini (CNR-Istituto di Metodologie Chimiche, Area della Ricerca di
Montelibretti, Via Salaria Km 29.300, 00015 Monterotondo,
RM, Italy)
F. Cataldo (Actinium Chemical Research srl, Via Casilina 1626A,
00133 Rome, RM, Italy)
S. Iglesias-Groth
(Instituto de Astrofisica de Canarias, Via Lactea snc, Tenerife,
Canary Islands, Spain)
M. E. Crestoni
(Dipartimento di Chimica e Tecnologie del Farmaco, Universita di Roma Sapienza, P. le A. Moro 5, 00185 Rome, RM, Italy)
A selection of amino acids, namely arginine,
proline and tyrosine previously irradiated to 3.2 mega-
Gray in the solid state and analyzed by differential
scanning calorimetry (DSC) and optical rotatory disper-
sion (ORD) were analyzed in the present work by mass
spectrometry with the purpose to identify the radiolysis
products and validate the results obtained previously with
DSC and ORD. The radiolysis of amino acids is a top-
down approach of a research program designed to assess
the radiolysis resistance of these molecules for 4.6
x 10^9
years once buried in primitive bodies of the Solar
System.
proline and tyrosine previously irradiated to 3.2 mega-
Gray in the solid state and analyzed by differential
scanning calorimetry (DSC) and optical rotatory disper-
sion (ORD) were analyzed in the present work by mass
spectrometry with the purpose to identify the radiolysis
products and validate the results obtained previously with
DSC and ORD. The radiolysis of amino acids is a top-
down approach of a research program designed to assess
the radiolysis resistance of these molecules for 4.6
x 10^9
years once buried in primitive bodies of the Solar
System.