Title:
表面イオン化技術で用いるための固体を保持する器具
Document Type and Number:
Japanese Patent JP2009539114
Kind Code:
A
Abstract:
The present invention is a device to restrict the sampling of analyte ions and neutral molecules from surfaces with mass spectrometry and thereby sample from a defined area or volume. In various embodiments of the present invention, a tube is used to sample ions formed with a defined spatial resolution from desorption ionization at or near atmospheric pressures. In an embodiment of the present invention, electrostatic fields are used to direct ions to either individual tubes or a plurality of tubes positioned in close proximity to the surface of the sample being analyzed. In an embodiment of the present invention, wide diameter sampling tubes can be used in combination with a vacuum inlet to draw ions and neutrals into the spectrometer for analysis. In an embodiment of the present invention, wide diameter sampling tubes in combination with electrostatic fields improve the efficiency of ion collection.
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Inventors:
Masselman Brian Dee
Application Number:
JP2009513406A
Publication Date:
November 12, 2009
Filing Date:
May 25, 2007
Export Citation:
Assignee:
AEON Sense Inc.
International Classes:
G01N27/62; H01J49/04; H01J49/10
Attorney, Agent or Firm:
Sadao Kumakura
Disciple Maru Ken
Ino Sato
Mitsuru Matsushita
Ichiro Kurasawa
Makoto Watanabe
Disciple Maru Ken
Ino Sato
Mitsuru Matsushita
Ichiro Kurasawa
Makoto Watanabe