发明名称 |
HIGH SENSITIVITY MASS SPECTROMETER INTERFACE FOR MULTIPLE ION SOURCES |
摘要 |
<p>An interface for mass spectrometers. The interface uses non coaxial sampling pathways of the analyte ion beam prior to entering the entrance of a mass spectrometer for decreasing chemical background, and can be done in such a way as to permit multiple sprayers, increasing sample throughput and sensitivity for LC/MS (liquid chromatography/MS). The interface includes an ion source having an exit from which a beam of analyte ions are emitted, a curtain plate and an aperture in the curtain plate member, an orifice plate having an orifice therein. The orifice plate is being spaced from the curtain plate member defining a flow passageway therebetween, and the aperture in the orifice plate is aligned with a sample entrance to a first vacuum stage of a mass spectrometer maintained substantially lower than atmospheric pressure. The aperture in the curtain plate member is non coaxially aligned with the orifice in the orifice plate and the interface includes a gas flow mechanism for directing a counter flow gas into the flow passageway.</p> |
申请公布号 |
WO2007079586(A1) |
申请公布日期 |
2007.07.19 |
申请号 |
WO2007CA00047 |
申请日期 |
2007.01.12 |
申请人 |
IONICS MASS SPECTROMETRY GROUP;JOLLIFFE, CHARLES;JAVAHERY, GHOLAMREZA;COUSINS, LISA;TOMSKI, ILIA |
发明人 |
JOLLIFFE, CHARLES;JAVAHERY, GHOLAMREZA;COUSINS, LISA;TOMSKI, ILIA |
分类号 |
H01J49/10;G01N30/72;H01J49/26 |
主分类号 |
H01J49/10 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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