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Determination of the Natural Abundances of Krypton and Xenon Isotopes Using Mass Spectrometry: A Demonstration of Isotopes and the Basis of Atomic Mass
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Abstract
This paper describes the use of a gas chromatograph-mass spectrometer to demonstrate the existence of isotopes to students in an introductory chemistry course. Fragmentation reactions are avoided through the use of a noble gas (krypton or xenon) as the analyte. Students are able to readily identify the naturally occurring isotopes of the noble gas, and the quantitative mass spectrometric data may be analyzed to calculate the natural abundance of each isotope and the mean atomic mass of the noble gas.
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This article has been cited by 4 ACS Journal articles (4 most recent appear below).
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Fundamentals of Biomolecule Analysis by Electrospray Ionization Mass Spectrometry. An Instrumental Analysis Laboratory Experiment
Andrea Weinecke and Victor RyzhovJournal of Chemical Education2005 82 (1), 99Fundamentals of Biomolecule Analysis by Electrospray Ionization Mass Spectrometry. An Instrumental Analysis Laboratory Experiment
Andrea Weinecke and Victor RyzhovJournal of Chemical Education2005 82 (1), 99This article describes an undergraduate instrumental analysis laboratory experiment dealing with fundamentals of electrospray ionization mass spectrometry (ESI–MS). Several important aspects of applications of ESI–MS for analysis of biomolecules are ...
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- Received: August 03, 2009
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