A Simple, Lensless Interface of an RF Glow Discharge Device to an FT-ICR (FTMS)

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Abstract:

High mass resolving powers (mm = 39,000) are achieved by coupling an rf-powered glow discharge device to an FT/ICR mass spectrometer (FTMS). Introduction of the ions from the externally mounted ion source into the ICR analyzer cell is accomplished without the use of ion optics, relying simply on the ions' kinetic energy in the z (magnetic axis) direction. Magnetic focusing is believed to facilitate efficient ion transport. Basic improvements in the instrument design are expected to yield resolving powers of > 100,000—sufficient to overcome almost any isobaric interference encountered in plasma source mass spectrometry.

Keywords: FT/ICR; Glow discharge; Mass spectrometry; Radio frequency

Document Type: Rapid Communication

DOI: http://dx.doi.org/10.1366/0003702924123683

Affiliations: 1: Department of Chemistry, Clemson University, Clemson, South Carolina 29634-1905 2: Analytical Chemistry Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831 3: Environmental Technology Section, Savannah River Technology Center, Westinghouse Savannah River Company, Aiken, South Carolina 29802

Publication date: September 1, 1992

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