Stability of Glycine in Saline Solutions Exposed to Ionizing Radiation
The objective of this work is to examine the influence of sodium chloride on the stability of the amino acid glycine when subjected to high radiation doses. The analysis of the irradiated samples was followed by HPLC coupled with a UV-VIS detector. The results show that glycine in aqueous solutions (without oxygen) decomposed around 90% at a dose of 91 kGy. In the presence of salts, up to 80% of the amino acid was recovered at the same dose. Laboratory simulations demonstrate a protective role for sodium chloride (specifically the chloride ion) to glycine against an external source of ionizing radiation.
Laura Patricia Cruz-Cruz, Alicia Negrón-Mendoza & Alejandro Heredia-Barbero
Chemical evolution, Glycine, Saline water, Ionizing radiation
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