From Clusters to Molecules:Pulsed Molecular Beams of Molecules of Biological Interest

【Author】

Wolfgang Christen;

【Abstract】

<正> The transfer of non-volatile or thermally unstable molecules into the gas phase is of utmost importance for a variety of applications such as analytical mass spectrometry, optical spectroscopy, or the epitaxial growth of thin films. One possible method is the expansion of supercritical solutions into a molecular beam, where the key idea is to dissolve the molecule at high pressure, exploiting the supercritical fluid's solvent power, and precipitate it by expansion.Here we report the successful expansion of three different molecules of biological interest (vitamin, amino acid) in supercritical CO2 at temperatures of only 310-315 K, andaccompanying detection using a quadrupole mass spectrometer.

【Keywords】

From Clusters to Molecules;Pulsed Molecular Beams of Molecules of Biological Interest;

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