التفاصيل البيبلوغرافية
| العنوان: |
The Nature of the Spark Is a Pivotal Element in the Design of a Miller–Urey Experiment. |
| المؤلفون: |
Ravanbodshirazi, Sina1 (AUTHOR) sina.ravanbodshirazi@physik.uni-saarland.de, Boutfol, Timothée1 (AUTHOR), Safaridehkohneh, Neda1 (AUTHOR), Finkler, Marc1 (AUTHOR), Mohammadi-Kambs, Mina1 (AUTHOR), Ott, Albrecht1 (AUTHOR) albrecht.ott@physik.uni-saarland.de |
| المصدر: |
Life (2075-1729). Nov2023, Vol. 13 Issue 11, p2201. 15p. |
| مصطلحات موضوعية: |
*ELECTRIC spark, *EXPERIMENTAL design, *MASS spectrometry, *HIGH temperatures, *GAS chromatography |
| مستخلص: |
Miller and Urey applied electric sparks to a reducive mixture of CH4, NH3, and water to obtain a complex organic mixture including biomolecules. In this study, we examined the impact of temperature, initial pressure, ammonia concentration, and the spark generator on the chemical profile of a Miller–Urey-type prebiotic broth. We analyzed the broth composition using Gas Chromatography combined with Mass Spectroscopy (GC/MS). The results point towards strong compositional changes with the nature of the spark. Ammonia exhibited catalytic properties even with non-nitrogen-containing compounds. A more elevated temperature led to a higher variety of substances. We conclude that to reproduce such a broth as well as possible, all the studied parameters need to be tightly controlled, the most difficult and important being spark generation. [ABSTRACT FROM AUTHOR] |
| قاعدة البيانات: |
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