Portable quadrupole ion trap mass spectrometer
AssigneeSamsung Electronics Co., Ltd.
InventorHo-young AHN
Life of this patent
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Abstract
A portable quadrupole ion trap mass spectrometer includes an electron emission source, an ion trap including a ring electrode and first and second end cap electrodes arranged opposite sides of the ring electrode, and an ion detector for detecting an amount of ions discharged from the ion trap. The first end cap electrode includes a first aperture through which the electrons emitted by the electron source enter the ion trap, and the second end cap electrode includes a second aperture through which ions are discharged the ion trap. A first electron multiplier is disposed in the first aperture of the first end cap electrode and multiplies an amount of the electrons and input to the ion trap. An ion detector detects an amount of the ions discharged from the ion trap.
Claims20
A portable quadrupole ion trap mass spectrometer comprising:
- an electron emission source which emits electrons;
- an ion trap which is configured to capture ions generated when gas is ionized by the electrons emitted from the electron emission source, the ion trap comprising:
- a ring electrode;
- first and second end cap electrodes which are arranged on opposite sides of the ring electrode, wherein the first end cap electrode includes a first aperture through which the electrons emitted by the electron source enter the ion trap, and the second end cap electrode includes a second aperture through which ions are discharged from the ion trap;
- and
- a first electron multiplier which is disposed in the first aperture of the first end cap electrode and multiplies an amount of the electrons and input to the ion trap;
- and
- an ion detector which detects an amount of the ions discharged from the ion trap.
A quadrupole ion trap mass spectrometer comprising:
- an electron emission source which emits electrons;
- an ion trap comprising:
- a first end cap electrode including a first aperture through which the electrons emitted by the electron source enter the ion trap,
- a second end cap electrode including a second aperture through which ions are discharged the ion trap, and
- a first electron multiplier which is disposed in the first aperture of the first end cap electrode and multiplies an amount of the electrons input to the ion trap;
- and
- an ion detector which detects an amount of the ions discharged from the ion trap.
Dependencies are inferred from the claim text.