| Literature DB >> 19921877 |
Herbe Pech1, Amanda Henry, Crist S Khachikian, Tina M Salmassi, Grady Hanrahan, Krishna L Foster.
Abstract
Little is known about the prebiotic mechanisms that initiated the bioavailability of phosphorus, an element essential to life. A better understanding of phosphorus speciation in modern earth environments representative of early earth may help to elucidate the origins of bioavailable phosphorus. This paper presents the first quantitative measurements of phosphite in a pristine geothermal pool representative of early earth. Phosphite and phosphate were initially identified and quantified in geothermal pool and stream samples at Hot Creek Gorge near Mammoth Lakes, California, using suppressed conductivity ion chromatography. Results confirmed the presence of 0.06 +/- 0.02 microM of phosphite and 0.05 +/- 0.01 microM of phosphate in a geothermal pool. In the stream, phosphite concentrations were below detection limit (0.04 microM) and phosphate was measured at 1.06 +/- 0.36 microM. The presence of phosphite in the geothermal pool was confirmed using both chemical oxidation and ion chromatography/mass spectrometry.Entities:
Mesh：
Substances：
Year: 2009 PMID： 19921877 PMCID： PMC2780435 DOI： 10.1021/es901469t
Source DB: PubMed Journal: Environ Sci Technol ISSN： 0013-936X Impact factor: 9.028