Title:
GAS INLET FOR AN ION SOURCE
Document Type and Number:
WIPO Patent Application WO1999060603
Kind Code:
A3
Abstract:
The aim of the invention is to configure the gas inlet for an ion source in such a way that the point of expansion of the gas stream can be fed directly into the ion source of a mass spectrometer. To this end the invention provides for a capillary (1) for supplying a sample gas, a guiding tube which surrounds the capillary and contains a carrier gas, where the capillary opens into the guiding tube and the open end of said guiding tube ends in the ion source, a pulsed valve for supplying carrier gas to the guiding tube and a housing for holding the capillary, guiding tube and valve in a gas-tight manner, whereby the guiding tube protrudes from the housing.
Inventors:
ROHWER EGMONT (ZA)
ZIMMERMANN RALF (DE)
HEGER HANS JOERG (DE)
DORFNER RALPH (DE)
BOESL ULRICH (DE)
KETTRUP ANTONIUS (DE)
ZIMMERMANN RALF (DE)
HEGER HANS JOERG (DE)
DORFNER RALPH (DE)
BOESL ULRICH (DE)
KETTRUP ANTONIUS (DE)
Application Number:
PCT/EP1999/003420
Publication Date:
January 27, 2000
Filing Date:
May 18, 1999
Export Citation:
Assignee:
GSF FORSCHUNGSZENTRUM UMWELT (DE)
ROHWER EGMONT (ZA)
ZIMMERMANN RALF (DE)
HEGER HANS JOERG (DE)
DORFNER RALPH (DE)
BOESL ULRICH (DE)
KETTRUP ANTONIUS (DE)
ROHWER EGMONT (ZA)
ZIMMERMANN RALF (DE)
HEGER HANS JOERG (DE)
DORFNER RALPH (DE)
BOESL ULRICH (DE)
KETTRUP ANTONIUS (DE)
International Classes:
H01J49/04; (IPC1-7): H01J49/04
Foreign References:
| EP0770870A2 | 1997-05-02 | |||
| US4433241A | 1984-02-21 | |||
| US5070240A | 1991-12-03 |
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