Ionization constants and thermal stabilities of uracil and adenine under hydrothermal conditions as measured by in situ UV–visible spectroscopy

UV–visible spectra for aqueous uracil and adenine were measured in a high-pressure platinum flow cell with sapphire windows at temperatures up to 250°C at a constant pressure of 7.2MPa. Ionization constants were determined from pH-dependent spectra in the buffer solutions NH3/NH4Cl, NaHCO3/Na2CO3, H...

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Veröffentlicht in:	Geochimica et cosmochimica acta 2012-09, Vol.93, p.182-204
Hauptverfasser:	Balodis, Erik, Madekufamba, Melerin, Trevani, Liliana N., Tremaine, Peter R.
Format:	Artikel
Sprache:	eng
Schlagworte:	adenine Adenines buffers Constants ionic strength Ionization nucleic acids Phosphates platinum Spectra temperature thermal degradation Thermal stability ultraviolet-visible spectroscopy Uracil
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