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US 2018/0323051 A1Published application
Cryogenic 2d linear ion trap and uses thereof
AssigneeUniversity of Florida Research Foundation, Inc.
InventorsNicolas Camille Polfer, Todd A. Prox, Larry F. Tesler, Matthew Bell, Adam P. Cismesia
Life of this patent
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Abstract
Described herein are cryogenic linear ion traps and uses thereof.
Claims20
A rectilinear ion trap comprising:
- spaced x and y pairs of flat RF electrodes disposed in the zx and zy plane to define a trap volume, wherein each of the x flat RF electrodes comprise a slit;
- a pair of DC plates, wherein the DC plates are coupled to the x and y pairs of flat RF electrodes, wherein the DC plates are disposed in the xy plane, and wherein each DC plate comprises holes configured to receive a fastener;
- a base plate, wherein the base pate is coupled to the DC plates, wherein the base plate is positioned on top of the spaced x and y pairs of flat RF electrodes, and wherein the base plate is disposed of in the zy plane, wherein the base plate is parallel to the Y pair of flat RF electrodes, and wherein the base plate comprises holes to receive a fastener,
- sapphire spacers, wherein the sapphire spacers have two holes configured to receive a fastener, wherein the sapphire spacers are placed between the base plate and the DC plate, wherein the sapphire spacers are placed between the DC plates and the ends of the x and y flat RF electrodes;
- and
- fasteners, wherein the fasteners are passed through the holes in the DC plates, base plates, x and y flat RF electrodes and sapphire spacers.
3 more elements
A mass spectrometer comprising:
- a rectilinear ion trap comprising:
- spaced x and y pairs of flat RF electrodes disposed in the zx and zy plane to define a trap volume, wherein each of the x flat RF electrodes comprise a slit;
- a pair of DC plates, wherein the DC plates are coupled to the x and y pairs of flat RF electrodes, wherein the DC plates are disposed in the xy plane, and wherein each DC plate comprises holes configured to receive a fastener;
- a base plate, wherein the base pate is coupled to the DC plates, wherein the base plate is positioned on top of the spaced x and y pairs of flat RF electrodes, and wherein the base plate is disposed of in the zy plane, wherein the base plate is parallel to the Y pair of flat RF electrodes, and wherein the base plate comprises holes to receive a fastener,
- sapphire spacers, wherein the sapphire spacers have two holes configured to receive a fastener, wherein the sapphire spacers are placed between the base plate and the DC plate, wherein the sapphire spacers are placed between the DC plates and the ends of the x and y flat RF electrodes;
- and
- fasteners, wherein the fasteners are passed through the holes in the DC plates, base plates, x and y flat RF electrodes and sapphire spacers.
4 more elements
A method of mass spectrometry comprising:
- trapping ions in a trap volume of a rectilinear ion trap,
- wherein the rectilinear ion trap comprises spaced x and y pairs of flat RF electrodes disposed in the zx and zy plane to define the trap volume, wherein each of the x flat RF electrodes comprise a slit;
- a pair of DC plates, wherein the DC plates are coupled to the x and y pairs of flat RF electrodes, wherein the DC plates are disposed in the xy plane, and wherein each DC plate comprises holes configured to receive a fastener;
- a base plate, wherein the base pate is coupled to the DC plates, wherein the base plate is positioned on top of the spaced x and y pairs of flat RF electrodes, and wherein the base plate is disposed of in the zy plane, wherein the base plate is parallel to the Y pair of flat RF electrodes, and wherein the base plate comprises holes to receive a fastener,
- sapphire spacers, wherein the sapphire spacers have two holes configured to receive a fastener, wherein the sapphire spacers are placed between the base plate and the DC plate, wherein the sapphire spacers are placed between the DC plates and the ends of the x and y flat RF electrodes;
- and
- fasteners, wherein the fasteners are passed through the holes in the DC plates, base plates, x and y flat RF electrodes and sapphire spacers;
- removing mass interferences by ejecting some ions from the trap volume;
- tagging the ions remaining in the trap volume by pulsing a cooled gas containing the tagging agent into the trap volume;
- ejecting untagged ions from the trap volume based on mass;
- and
- irradiating the remaining ions in the trap volume with infrared radiation.
9 more elements
Dependencies are inferred from the claim text.