Atmospheric-pressure ionization and fragmentation of molecules for structural elucidation
AssigneesIndiana University, Kent State University
InventorsJacob T. SHELLEY, Kelsey L. WILLIAMS, Gary M. Hieftje, Andrew J. SCHWARTZ
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Abstract
A solution-cathode glow discharge (SCGD) spectrometry apparatus may comprise an SCGD source and a mass or ion mobility spectrometer. A method for ionizing a molecular analyte may comprise contacting the molecular analyte with a plasma discharge to form ions and separating the ions in a mass spectrometer or ion mobility spectrometer. The contacting step may occur under atmospheric pressure and/or ambient conditions. The molecular analyte may be fragmented by the plasma discharge.
Claims21
1-51. (canceled)
A method for ionizing a molecular analyte, the method comprising:
- contacting the molecular analyte with a plasma discharge under ambient conditions to form ions and
- separating the ions in a mass spectrometer.
A solution-cathode glow discharge ion mobility spectrometry or mass spectrometry apparatus comprising:
- a solution-cathode glow discharge source for producing ions from an analyte;
- and
- an ion mobility spectrometer or a mass spectrometer coupled to the solution-cathode glow discharge source to detect the ions.
Dependencies are inferred from the claim text.