期刊
PLANETARY AND SPACE SCIENCE
卷 68, 期 1, 页码 42-47出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.pss.2011.06.004
关键词
Amino acids; Salten Skov; Mars soil analogs; Fluorescence detection; Fluorescamine; Photochemical quenching
资金
- Science and Technology Facilities Council
- Royal Society
- Department of Earth Science and Engineering, Imperial College London
- Science and Technology Facilities Council [ST/H003576/1] Funding Source: researchfish
- STFC [ST/H003576/1] Funding Source: UKRI
We have performed fluorescence spectroscopic analyses of the amino acid content of the Mars soil analog Salten Skov and of an amino acid standard mixture with the same amino acid abundance and distribution as the soil. This is the first study that investigates the total amino acid abundance of a Mars soil analog with a spectrofluorometer and correlates it with the results obtained from other analytical techniques. We discuss the variations between the fluorescence spectra of the Salten Skov soil sample and the amino acid standard mixture, and the differences between the Salten Skov hydrolyzed and non-hydrolyzed sample fractions. We also discuss the advantages and limitations of fluorescence spectroscopy in the context of future life detection missions. (C) 2011 Elsevier Ltd. All rights reserved.
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