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Zeolite as Catalysts for the Synthesis of Amino Acids and Purines
Zeolite Catalysts Synthesis Amino Acids Purines
2012/2/17
This paper attempts to show that the catalytic properties of zeolitic material may play a role in the synthesis of simple biological molecules from gases commonly found in extraterrestrial atmospheres...
Specific Co-Absorption of Purines and Pyrimidines by Montmorillonite (Clay-Organic Studies XV)
Specific Co-Absorption Purines Pyrimidines by Montmorillonite
2012/2/20
The co-absorptions of various purines and pyrimidines from aqueous solutions by Na- and Ca-montmorillonite are studied in the range of pH 1–6. The pyrimidines, thymine and uracil, which are not absorb...
Absorption of Pyrimidines, Purines, and Nucleosides by Co-, Ni-, Cu-, and Fe(III)-Montmorillonite (Clay-Organic Studies XIII)
Absorption Pyrimidines Purines Nucleosides Montmorillonite
2012/2/21
Absorptions of purine and pyrimidine derivatives by Co- and Ni-montmorillonite at pH < 6 and by Cu-montmorillonite at pH < 3 are similar to their absorption by Ca-montmorillonite and take place primar...
Absorption of Pyrimidines, Purines, and Nucleosides By Li-, Na-, Mg-, and Ca-Montmorillonite (Clay-Organic Studies XII)
Absorption Pyrimidines Purines Nucleosides Ca-Montmorillonite
2012/2/21
The absorption of biologically important purines, pyrimidines, and nucleosides by Li-, Na-, Mg-, and Ca-montmorillonite has been studied in aqueous solutions over a range of pH values 2–12. The initia...