Preliminary analysis of soluble organic compounds in the Murchison meteorite by liquid chromatography/high-resolution mass spectrometry
Year: 2013
Type: conference-paper
Abstract: Introduction:Various organic matters have been found in carbonaceous chondrites, in which water-soluble bio-related organic compounds such as amino acids and carboxylic acids are fully identified mainly because of their great interests to origins of life in the universe and standards available for analyses.The concentrations of these acids increase significantly after acid hydrolysis of the water extract.The chemical structures of the precursors, however, remain unclear.Aqueous activity on the parent body could affect the alteration of meteoritic organic matter [1].In contrast to the water extract, less polar methanol extract of chondrites has not been characterized well in spite of relatively high content of organic matter with the D-and 15 N enrichment.Recently, ultrahigh-resolution molecular analysis on various solvent extracts of the Murchison meteorite (CM2) was performed by electrosplay ionization (ESI) Fourier transform ion cyclotron resonance/ mass spectrometry (FTICR/MS) to reveal significant chemical diversity to tens of thousands of different molecular compositions having CHO, CHOS, CHNO and CHNOS formulae [2].With the assumption for molecular formulae calculation and no chromatographic separation, however, chemical structures of the compounds and their isotopic compositions cannot be determined.In this study, we performed a preliminary analysis of soluble organic compounds in the Murchison meteorite by high-performance liquid chromatography-mass spectrometry (HPLC-MS).
Authors: Y., Yamashita, H., Naraoka
Institution: Kyushu University
Language: English
Topic: Astro and Planetary Science
Subfield: Space and Planetary Science
Field: Earth and Planetary Sciences
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W7052181596