Gas separation: apparatus – Electric field separation apparatus – Including gas flow distribution means
Patent
1999-05-28
2000-12-05
Chiesa, Richard L.
Gas separation: apparatus
Electric field separation apparatus
Including gas flow distribution means
96 97, B03C 336
Patent
active
061561037
ABSTRACT:
Apparatus for purification of a discharge gas, wherein the discharge gas is selected from a group of noble gases, and most preferably is helium or argon. The purification of the discharge gas is achieved by attraction and removal of at least one ionized contaminant in the discharge gas, wherein the contaminant exhibits an ionization potential that is less than the excitation potential of the discharge gas. A discharge gas purification system may be constructed to include a discharge ionization detector that employs a discharge chamber and discharge source for effecting a discharge to provide photons and metastables for ionization of an analyte in an adjacent ionization chamber, wherein the discharge chamber includes a bleed flow for attracting and removing ionized contaminants present in the discharge chamber.
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Chiesa Richard L.
Hewlett--Packard Company
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