Efficient Atmospheric Pressure Interface for Mass Spectrometers and Method
First Claim
1. An ion transfer arrangement for transporting ions between a relatively high pressure region and a relatively low pressure region, comprising:
- an ion transfer conduit having an inlet opening towards a relatively high pressure chamber, an outlet opening towards a relatively low pressure chamber, and at least one sidewall surrounding an ion transfer channel, the sidewall extending along a central axis between the inlet end and the outlet end; and
a plurality of apertures formed in the longitudinal direction of the sidewall so as to permit a flow of gas from within the ion transfer channel to a lower pressure region outside of the sidewall of the conduit.
1 Assignment
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Accused Products
Abstract
An ion transfer arrangement for transporting ions between higher and lower pressure regions of the mass spectrometer comprises an ion transfer conduit 60. The conduit 60 has an inlet opening towards a relatively high pressure chamber 40 and an outlet 70 opening towards a relatively low pressure chamber. The conduit 60 also has at least one side wall surrounding an ion transfer channel 115. The side wall includes a plurality of apertures 140 formed in the longitudinal direction of the side wall so as to permit a flow of gas from within the ion transfer channel 115 to a lower pressure region outside of the side wall of the conduit 60.
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Citations
2 Claims
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1. An ion transfer arrangement for transporting ions between a relatively high pressure region and a relatively low pressure region, comprising:
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an ion transfer conduit having an inlet opening towards a relatively high pressure chamber, an outlet opening towards a relatively low pressure chamber, and at least one sidewall surrounding an ion transfer channel, the sidewall extending along a central axis between the inlet end and the outlet end; and a plurality of apertures formed in the longitudinal direction of the sidewall so as to permit a flow of gas from within the ion transfer channel to a lower pressure region outside of the sidewall of the conduit.
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2-26. -26. (canceled)
Specification