Apparatus for preparing a sample for mass spectrometry
Abstract
An apparatus for preparing a sample for analysis by a mass spectrometer system. The apparatus has an entry chamber and an ionization chamber separated by a skimmer. A capacitor having two space-apart electrodes followed by one or more ion-imaging lenses is disposed in the ionization chamber. The chamber is evacuated and the capacitor is charged. A valve injects a sample gas in the form of sample pulses into the entry chamber. The pulse is collimated by the skimmer and enters the ionization chamber. When the sample pulse passes through the gap between the electrodes, it discharges the capacitor and is thereby ionized. The ions are focused by the imaging lenses and enter the mass analyzer, where their mass and charge are analyzed.
- Inventors:
-
- Aiken, SC
- Issue Date:
- Research Org.:
- Savannah River Site (SRS), Aiken, SC (United States)
- OSTI Identifier:
- 869290
- Patent Number(s):
- 5311016
- Assignee:
- United States of America as represented by United State (Washington, DC)
- Patent Classifications (CPCs):
-
H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01J - ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- DOE Contract Number:
- AC09-89SR18035
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- apparatus; preparing; sample; mass; spectrometry; analysis; spectrometer; entry; chamber; ionization; separated; skimmer; capacitor; space-apart; electrodes; followed; ion-imaging; lenses; disposed; evacuated; charged; valve; injects; gas; form; pulses; pulse; collimated; enters; passes; gap; discharges; ionized; focused; imaging; enter; analyzer; charge; analyzed; sample pulse; mass spectrometer; mass spectrometry; sample gas; ionization chamber; mass analyzer; chamber separated; pulse passes; imaging lenses; imaging lens; apart electrodes; /250/
Citation Formats
Villa-Aleman, Eliel. Apparatus for preparing a sample for mass spectrometry. United States: N. p., 1994.
Web.
Villa-Aleman, Eliel. Apparatus for preparing a sample for mass spectrometry. United States.
Villa-Aleman, Eliel. Sat .
"Apparatus for preparing a sample for mass spectrometry". United States. https://www.osti.gov/servlets/purl/869290.
@article{osti_869290,
title = {Apparatus for preparing a sample for mass spectrometry},
author = {Villa-Aleman, Eliel},
abstractNote = {An apparatus for preparing a sample for analysis by a mass spectrometer system. The apparatus has an entry chamber and an ionization chamber separated by a skimmer. A capacitor having two space-apart electrodes followed by one or more ion-imaging lenses is disposed in the ionization chamber. The chamber is evacuated and the capacitor is charged. A valve injects a sample gas in the form of sample pulses into the entry chamber. The pulse is collimated by the skimmer and enters the ionization chamber. When the sample pulse passes through the gap between the electrodes, it discharges the capacitor and is thereby ionized. The ions are focused by the imaging lenses and enter the mass analyzer, where their mass and charge are analyzed.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Sat Jan 01 00:00:00 EST 1994},
month = {Sat Jan 01 00:00:00 EST 1994}
}