IP Library Granted Patent US 8,969,800
Granted Patent B1
US 8,969,800 · App. 14/528,917 · Granted Mar 3, 2015

Ion manipulation device to prevent loss of ions

Inventors: Aleksey Tolmachev (Richland, WA); Richard D. Smith (Richland, WA); Yehia M. Ibrahim (Richland, WA); Gordon A. Anderson (Benton City, WA); Erin M. Baker (West Richland, WA)
Assignee: Battelle Memorial Institute
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Quick Facts
Patent No.
US 8,969,800
App. No.
14/528,917
Granted
Mar 3, 2015
Kind
B1
Abstract

An ion manipulation method and device to prevent loss of ions is disclosed. The device includes a pair of surfaces. An inner array of electrodes is coupled to the surfaces. A RF voltage and a DC voltage are alternately applied to the inner array of electrodes. The applied RF voltage is alternately positive and negative so that immediately adjacent or nearest neighbor RF applied electrodes are supplied with RF signals that are approximately 180 degrees out of phase.

Claims (45)

1. An ion manipulation device to prevent loss of ions comprising:

a. a pair of surfaces;

b. an inner array of electrodes coupled to the surfaces; and

c. a RF voltage and a DC voltage being alternately applied to the inner array of electrodes, wherein the applied RF voltage is alternately positive and negative so that immediately adjacent or nearest neighbor RF applied electrodes are supplied with RF signals that are approximately 180 degrees out of phase.

2. The device of claim 1 further comprising a first outer electrode array coupled to the surface and positioned on one side of the inner array of electrodes, and a second outer electrode array coupled to the surface and positioned on the other side of the inner array of electrodes.

3. The device of claim 2 wherein a second DC voltage is applied to the first and second outer electrode arrays.

4. The device of claim 1 further comprising multiple pairs of surfaces, wherein transfer of the ions is allowed through an aperture and guided by a series of electrodes to move between different pairs of surfaces of the multiple pairs of surfaces.

5. The device of claim 1 wherein the device is coupled to at least one of the following: a charge detector, an optical detector, and a mass spectrometer.

6. The device of claim 1 wherein the device is used to perform ion mobility separations.

7. The device of claim 1 wherein the DC voltage is a static or time-varying DC voltage.

8. The device of claim 7 wherein the time-varying DC voltage is a traveling wave voltage.

9. The device of claim 1 wherein the surfaces are one of the following: substantially planar, substantially parallel, and not flat.

10. An ion manipulation device comprising:

a. a pair of substantially parallel surfaces;

b. an array of inner electrodes contained within, and extending substantially along the length of, each parallel surface;

c. a first outer array of electrodes and a second outer array of electrodes, each positioned on either side of the inner electrodes, contained within, and extending substantially along the length of each parallel surface; and

d. a RF voltage and a first DC voltage being alternately applied to the inner array of electrodes, wherein the applied RF voltage is alternately positive and negative so that immediately adjacent or nearest neighbor RF applied electrodes are supplied with RF signals that are approximately 180 degrees out of phase; and

e. a second DC voltage applied to the first and second outer electrode arrays.

11. The device of claim 10 further comprising multiple pairs of surfaces, wherein transfer of the ions is allowed through an aperture and guided by a series of electrodes to move between different pairs of surfaces of the multiple pairs of surfaces.

12. The device of claim 11 wherein the surfaces are one of the following: substantially planar, substantially parallel, and not flat.

13. The device of claim 10 wherein the device is coupled to at least one of the following: a charge detector, an optical detector, and a mass spectrometer.

14. The device of claim 10 wherein the device is used to perform ion mobility separations.

15. The device of claim 10 wherein the first DC voltage is a static or time-varying DC voltage.

16. The device of claim 15 wherein the time-varying DC voltage is a traveling wave voltage.

17. A method of manipulating ions comprising:

a. injecting ions between a pair of surfaces, wherein each pair of surfaces contains an array of inner electrodes; and

b. applying a RF voltage and a DC voltage alternately to the inner array of electrodes, wherein the applied RF voltage is alternately positive and negative so that immediately adjacent or nearest neighbor RF applied electrodes are supplied with RF signals that are approximately 180 degrees out of phase.

18. The method of claim 17 wherein each pair of surfaces further contains a first outer electrode array coupled to the surface and positioned on one side of the inner array of electrodes, and a second outer electrode array coupled to the surface and positioned on the other side of the inner array of electrodes.

19. The method of claim 18 further comprising applying a second DC voltage to the first and second outer electrode arrays.

20. The method of claim 17 wherein the DC voltage is a static or time-varying DC voltage.

21. The method of claim 20 wherein the time-varying DC voltage is a traveling wave voltage.

22. An ion manipulation device to prevent loss of ions comprising:

a. a pair of surfaces;

b. an inner array of electrodes coupled to the surfaces; and

c. a RF voltage applied to only one of the surfaces, and a DC voltage applied to only the other surface.

23. The device of claim 22 further comprising a first outer electrode array coupled to the surface and positioned on one side of the inner array of electrodes, and a second outer electrode array coupled to the surface and positioned on the other side of the inner array of electrodes, wherein a second DC voltage source is applied to the first and second outer electrode arrays.

24. The device of claim 22 wherein the DC voltage is a static or time-varying DC voltage.

25. The device of claim 24 wherein the time-varying DC voltage is a traveling wave voltage.

26. A method of manipulating ions comprising:

a. injecting ions between a pair of surfaces, wherein each pair of surfaces contains an array of inner electrodes;

b. applying a RF voltage to only one of the surfaces; and

c. applying a DC voltage to only the other surface.

27. The method of claim 26 wherein each pair of surfaces further contains a first outer electrode array coupled to the surface and positioned on one side of the inner array of electrodes, and a second outer electrode array coupled to the surface and positioned on the other side of the inner array of electrodes, wherein a second DC voltage is applied to the first and second outer electrode arrays.

28. The method of claim 27 wherein the DC voltage is a static or time-varying DC voltage.

29. The method of claim 28 wherein the time-varying DC voltage is a traveling wave voltage.

Assignments (2)
CONFIRMATORY LICENSE Recorded Jan 6, 2015
From: BATTELLE MEMORIAL INSTITUTE, PACIFIC NORTHWEST DIVISION
To: U.S. DEPARTMENT OF ENERGY
Reel/Frame 034642/0809 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 29, 2014
From: TOLMACHEV, ALEKSEY; SMITH, RICHARD D.; IBRAHIM, YEHIA M.; ANDERSON, GORDON A.; BAKER, ERIN M.
To: BATTELLE MEMORIAL INSTITUTE
Reel/Frame 034592/0392 →
Continuity (3)
Continuation 14292448 · May 30, 2014
Continuation 14146922 · Jan 3, 2014
Provisional Application 61809660 · Apr 8, 2013