Ion isolation device and isolation method for ion trap mass spectrometer
The technology of an ion trap mass spectrometer and an isolation device is applied in the field of ion isolation device of the ion trap mass spectrometer, which can solve the problems of loss of frequency band frequency components, low precision, large loss of target ions, etc., and achieve the effect of improving the isolation resolution
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Embodiment 1
[0074] The structure of a high-resolution ion isolation device is as image 3 Shown. The whole device contains three sets of transformer coils, of which 303 is the primary coil of the first set of transformers, and 304 is the secondary coil of the first set of transformers. The input of the secondary coil is connected to the original SWIFT signal (that is, the first signal is generated). Output signal), the output terminal is connected to the input terminal of the secondary coil of the second set of transformers, 302 is a sine wave signal with a frequency value that needs to be coupled into the original SWIFT signal (that is, the signal output by the second signal generator) 305 is a sine wave signal of another frequency value that needs to be coupled into the original SWIFT signal (that is, the signal output by the third signal generator), 306 is the primary coil of the second set of transformers, and 307 is the secondary of the second set of transformers Coil, 309 is the seco...
Embodiment 2
[0079] Reference Figure 4 Shown is the structure of another high-resolution ion isolation device. The difference between this device and Embodiment 1 is that the positions of the two signal generators are exchanged. Compared with Example 1, the positions of the SIN1 and SWIFT signals are exchanged. 403 is the primary coil of the first group of transformers, and 404 is the secondary coil of the first group of transformers. The input end of the secondary coil is connected to a sine wave signal of a specific frequency value (that is, the signal output by the first signal generator), The output terminal is connected to the input terminal of the secondary coil of the second set of signal generators, 402 is the original SWIFT signal that needs to be coupled into, and 401 is the signal output by the first signal generator (ie a sine wave signal with a specific frequency value) The following connection modes are similar to those in Embodiment 1, and will not be repeated here. This de...
Embodiment 3
[0081] Reference Figure 5 Shown is the structure of another high-resolution ion isolation device. The difference between this device and the first embodiment is that two sets of transformers are added. Compared with the first embodiment, it has a symmetrical structure. 509 is the primary coil of the newly added first group of transformers, both ends of the primary coil are grounded, 510 is the secondary coil of the newly added first group of transformers, the input of the secondary coil is grounded, and 512 is the newly added second group of transformers The input terminal of the secondary coil is connected to the output terminal of the secondary coil of the newly added first group of transformers, and the output terminal of the secondary coil is connected to the secondary coil of the third transformer described in Example 1. One input terminal (the input terminal described in Example 1 is grounded). 511 is the primary coil of the newly added second set of transformers. Both en...
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Abstract
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Application Information
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