Ion inlet assembly
AssigneeMicromass UK Limited
InventorsDavid Gordon, Joseph Jarrell, Daniel James Kenny, Stephen O'Brien, Ian Trivett
Life of this patent
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Abstract
An ion inlet assembly for connecting to a mass spectrometer housing is disclosed comprising a sampling limiting body (325) having a sampling orifice (329). The sampling limiting body (325) comprises a nickel disk wherein the disk and sampling orifice (329) are made or formed by an electroforming process.
Claims26
An ion inlet assembly for connecting to a mass spectrometer housing comprising:
- a gas cone assembly having a gas cone orifice;
- and
- a sampling limiting body having a sampling orifice;
- wherein said sampling limiting body is removably attached beneath the gas cone assembly to the mass spectrometer housing.
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An ion inlet assembly for connecting to a mass spectrometer housing comprising:
- a gas cone assembly having a gas cone orifice;
- a sampling limiting body having an orifice, wherein said sampling limiting body is removably attached beneath the gas cone assembly to the mass spectrometer housing;
- and
- a vacuum holding member having an orifice to allow the flow of ions into the mass spectrometer, wherein said vacuum holding member is arranged underneath the sampling limiting body;
- wherein upon attachment to a mass spectrometer housing said vacuum holding member provides at least a partial vacuum seal upon removal of the sampling limiting body.
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A method of connecting an ion inlet assembly to a mass spectrometer housing, said ion inlet assembly comprising a gas cone assembly having a gas cone orifice, and a sampling limiting body, said method comprising:
- removably attaching said sampling limiting body to said mass spectrometer housing by resting said gas cone assembly upon said sampling limiting body.
Dependencies are inferred from the claim text.