Claims
- 1. A gas inlet for an ion source, comprising: a capillary for the admission of a sample gas, a guide tube surrounding said capillary and having an open end disposed in said ion source, said capillary having a discharge opening disposed centrally within said guide tube, a pulse valve for the pulsed admission of carrier gas to said guide tube, and a support housing for supporting said capillary said guide tube and said valve in a gas-tight manner, said guide tube with the capillary enclosed therein projecting from said support housing.
- 2. A gas inlet for an ion source according to claim 1, wherein said guide tube is at least partially coated with an electrically conductive material and provided with a contacting structure for applying an electric potential thereto.
- 3. A gas inlet for an ion source according to claim 1, wherein said guide tube includes electric heating elements.
- 4. A gas inlet for an ion source according to claim 1, wherein the open end of said guide tube extending into said ion source includes a flow-constricting nozzle.
- 5. A gas inlet for an ion source according to claim 1, wherein the discharge opening of said capillary in said guide tube includes a constriction.
Priority Claims (1)
Number |
Date |
Country |
Kind |
198 22 674 |
May 1998 |
DE |
|
Parent Case Info
This is a continuation-in-part application of international application PCT/EP99/03420 filed May 18, 1999 and claiming the priority of German application 198 22 674.8 filed May 20, 1998.
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Continuation in Parts (1)
|
Number |
Date |
Country |
Parent |
PCT/EP99/03420 |
May 1999 |
US |
Child |
09/718472 |
|
US |