Mass Spectrometer Sampler Cones and Interfaces and Methods of Sealing Them to Each Other
Certain configurations of a sampler cone and its use with a metal gasket to seal the sampler cone to a mass spectrometer interface are described. The sampler cone, interface or both may comprise one or more surface features. Coupling of the sampler cone to the interface can compress or crush the metal gasket to provide a seal between the sampler cone and the interface. For example, a crushing force provided by surface features of the sampler cone and interface can crush the gasket and provide a substantially fluid tight seal between the sampler cone and the interface.
1 . (canceled)
2 . A system comprising:
a mass analyzer cone comprising a first surface, wherein the first surface comprises a projection;
a mass analyzer comprising a second surface, wherein the second surface comprises a recess configured to receive the projection; and
a metal gasket disposed between the first surface and the second surface,
wherein the first surface and the second surface are configured to provide a substantially fluid-tight seal by crushing the metal gasket into the recess based on the mass analyzer cone being coupled to the mass analyzer.
3 . The system of claim 2 , wherein the projection and the recess each comprise a substantially triangular-shaped cross-section.
4 . The system of claim 2 , wherein the projection and the recess each comprise:
a substantially square-shaped cross-section; or
a substantially rectangular-shaped cross-section.
5 . The system of claim 2 , wherein the mass analyzer cone comprises a sampler cone.
6 . The system of claim 2 , wherein:
the mass analyzer cone further comprises first threads;
the mass analyzer further comprises second threads; and
the mass analyzer cone is configured to be coupled to the mass analyzer by engaging the first threads with the second threads.
7 . The system of claim 2 , wherein each of the mass analyzer cone and the metal gasket comprises a material having substantially similar coefficient of thermal expansion.
8 . The system of claim 2 , wherein the metal gasket comprises a thickness of about 0.1 mm to about 0.5 mm.
9 . An apparatus comprising:
a mass analyzer cone comprising:
a first surface comprising a projection configured to be received by a recess of a second surface of a mass analyzer,
wherein the first surface is configured to provide a substantially fluid-tight seal by crushing a metal gasket into the recess based on the mass analyzer cone being coupled to the mass analyzer.
10 . The apparatus of claim 9 , wherein the projection comprises a substantially triangular-shaped cross-section.
11 . The apparatus of claim 9 , wherein the projection comprises:
a substantially square-shaped cross-section; or
a substantially rectangular-shaped cross-section.
12 . The apparatus of claim 9 , wherein the mass analyzer cone comprises a sampler cone.
13 . The apparatus of claim 9 , wherein:
the mass analyzer cone further comprises first threads; and
the mass analyzer cone is configured to be coupled to the mass analyzer by engaging the first threads with second threads, of the mass analyzer.
14 . A kit, comprising:
a metal gasket; and
a mass analyzer cone comprising a first surface comprising a projection configured to be received by a recess of a second surface of a mass analyzer,
wherein the first surface is configured to provide a substantially fluid-tight seal by crushing the metal gasket into the recess based on the mass analyzer cone being coupled to the mass analyzer.
15 . The kit of claim 14 , wherein the projection comprises a substantially triangular-shaped cross-section.
16 . The kit of claim 14 , wherein the projection comprises:
a substantially square-shaped cross-section; or
a substantially rectangular-shaped cross-section.
17 . The kit of claim 14 , wherein the metal gasket comprises an aluminum gasket.
18 . The kit of claim 14 , wherein the mass analyzer cone comprises a sampler cone.
19 . The kit of claim 14 , wherein:
the mass analyzer cone further comprises first threads; and
the mass analyzer cone is configured to be coupled to the mass analyzer by engaging the first threads with second threads, of the mass analyzer.
20 . The kit of claim 14 , wherein each of the mass analyzer cone and the metal gasket comprises material having a substantially similar coefficient of thermal expansion.
21 . The kit of claim 14 , wherein the metal gasket comprises a thickness of about 0.1 mm to about 0.5 mm.