skip to main content
DOE Patents title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Microscale ion trap mass spectrometer

Abstract

An ion trap for mass spectrometric chemical analysis of ions is delineated. The ion trap includes a central electrode having an aperture; a pair of insulators, each having an aperture; a pair of end cap electrodes, each having an aperture; a first electronic signal source coupled to the central electrode; a second electronic signal source coupled to the end cap electrodes. The central electrode, insulators, and end cap electrodes are united in a sandwich construction where their respective apertures are coaxially aligned and symmetric about an axis to form a partially enclosed cavity having an effective radius r.sub.0 and an effective length 2z.sub.0, wherein r.sub.0 and/or z.sub.0 are less than 1.0 mm, and a ratio z.sub.0 /r.sub.0 is greater than 0.83.

Inventors:
 [1];  [2];  [3]
  1. Knoxville, TN
  2. Lancing, TN
  3. Lansdale, PA
Issue Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
OSTI Identifier:
874828
Patent Number(s):
6469298
Assignee:
UT-Battelle, LLC (Oak Ridge, TN)
Patent Classifications (CPCs):
H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01J - ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
DOE Contract Number:  
AC05-96OR22464
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
microscale; trap; mass; spectrometer; spectrometric; chemical; analysis; delineated; central; electrode; aperture; pair; insulators; cap; electrodes; electronic; signal; source; coupled; united; sandwich; construction; apertures; coaxially; aligned; symmetric; axis; form; partially; enclosed; cavity; effective; radius; rsub0; length; 2zsub0; andor; zsub0; 10; ratio; 083; mass spectrometer; electronic signal; trap mass; central electrode; /250/

Citation Formats

Ramsey, J Michael, Witten, William B, and Kornienko, Oleg. Microscale ion trap mass spectrometer. United States: N. p., 2002. Web.
Ramsey, J Michael, Witten, William B, & Kornienko, Oleg. Microscale ion trap mass spectrometer. United States.
Ramsey, J Michael, Witten, William B, and Kornienko, Oleg. Tue . "Microscale ion trap mass spectrometer". United States. https://www.osti.gov/servlets/purl/874828.
@article{osti_874828,
title = {Microscale ion trap mass spectrometer},
author = {Ramsey, J Michael and Witten, William B and Kornienko, Oleg},
abstractNote = {An ion trap for mass spectrometric chemical analysis of ions is delineated. The ion trap includes a central electrode having an aperture; a pair of insulators, each having an aperture; a pair of end cap electrodes, each having an aperture; a first electronic signal source coupled to the central electrode; a second electronic signal source coupled to the end cap electrodes. The central electrode, insulators, and end cap electrodes are united in a sandwich construction where their respective apertures are coaxially aligned and symmetric about an axis to form a partially enclosed cavity having an effective radius r.sub.0 and an effective length 2z.sub.0, wherein r.sub.0 and/or z.sub.0 are less than 1.0 mm, and a ratio z.sub.0 /r.sub.0 is greater than 0.83.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2002},
month = {1}
}

Patent:

Save / Share:

Works referenced in this record:

A Miniature Cylindrical Quadrupole Ion Trap:  Simulation and Experiment
journal, December 1998


Multichannel Microchip Electrospray Mass Spectrometry
journal, February 1997


Field-Emission Cold-Cathode EI Source for a Microscale Ion Trap Mass Spectrometer
journal, February 2000


Localized visible Ba + mono-ion oscillator
journal, September 1980


Planar ion microtraps
journal, December 1992


A Quadrupole Ion Trap with Cylindrical Geometry Operated in the Mass-Selective Instability Mode
journal, February 1998


A gas chromatographic air analyzer fabricated on a silicon wafer
journal, December 1979


Operation of a quadrupole ion trap mass spectrometer to achieve high mass/charge ratios
journal, May 1991


Generating Electrospray from Microchip Devices Using Electroosmotic Pumping
journal, March 1997


Fourier Transform Detection in a Cylindrical Quadrupole Ion Trap
journal, September 1998


Electron impact ionization in a microion trap mass spectrometer
journal, October 1999