CN207602517U - A kind of mass spectrograph ionized again - Google Patents
A kind of mass spectrograph ionized again Download PDFInfo
- Publication number
- CN207602517U CN207602517U CN201721832720.XU CN201721832720U CN207602517U CN 207602517 U CN207602517 U CN 207602517U CN 201721832720 U CN201721832720 U CN 201721832720U CN 207602517 U CN207602517 U CN 207602517U
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- ion
- ion trap
- cavity
- ionized
- mass spectrograph
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Abstract
The utility model discloses a kind of mass spectrographs ionized again, and including the ion trap in ionization source, mass spectrum vacuum chamber, the setting mass spectrum vacuum chamber, the ion trap is connected with ionization device again, and the ionization device again includes：Cavity, one end of cavity are connect with the ion trap；Accelerate end cap, be arranged on one end that the cavity deviates from the ion trap；Filament is connected with the acceleration end cap insulation；Ion lens is arranged on the middle part of the cavity.In the utility model, ion trap is connected with setting ionization device again, then ionization device will generate electronics and inject in ion trap, with being ionized during neutral collisions in ion trap, so as to fulfill being ionized again in trap.
Description
Technical field
The utility model is related to mass spectrometry arts, and in particular to a kind of mass spectrograph ionized again.
Background technology
Mass spectrograph be it is a kind of with analyze speed is fast, high sensitivity and scientific analysis instrument with molecular specificity, extensively
It is general to be applied to the various fields such as chemistry, biology, environmental monitoring, health care.And mass spectrum is by development for many years, it is already possible to right
Most of substances are detected.
Core in mass spectrum is mass analyzer.It is by matter according to different modes by the sample ions generated in ion source
The lotus instrument more separated than the size of m/z, between ion source and detector.In many mass analyzers, due to structure letter
The advantages such as Multiple mass spectrometry can be realized in the big and single ion trap of single, cost-effective, high sensitivity, mass range, from
Sub- trap mass analyzer obtains in the fields such as physics, analytical chemistry, medicine, environmental science, life science widely should
With.
Ion trap can with ion storage, can also be carried out using the ion in nitrogen and trap collision make ion fragmentation obtain from
The more structural informations of son.This is probed into for what the analysis of the molecular structure of test substance and molecular vapor were reacted with critically important
Value.However, neutral particle can not be stored in ion trap, neutral particle can not be ionized.The missing of neutral particle makes
Obtaining the process of many molecular vapors reactions can only all rest in guess, and can not really provide perfect real example.For
Can ionize the neutral particle in ion trap, the utility model generates electronics using electron impact ion source, and by its
Inject trap in and and neutral collisions, ionized, so as to fulfill being ionized again in trap.
Utility model content
The utility model provides a kind of mass spectrograph ionized again, and ion trap is connected with ionization device again, it can be achieved that neutrality
Ionization of the particle in ion trap.
A kind of mass spectrograph ionized again, including the ion in ionization source, mass spectrum vacuum chamber, the setting mass spectrum vacuum chamber
Trap, the ion trap are connected with ionization device again, and the ionization device again includes：
Cavity, one end of cavity are connect with the ion trap；
Accelerate end cap, be arranged on one end that the cavity deviates from the ion trap；
Filament is connected with the acceleration end cap insulation；
Ion lens is arranged on the middle part of the cavity.
In the utility model, ion trap is connected with setting ionization device again, then ionization device will generate electronics and inject ion
In trap, with being ionized during neutral collisions in ion trap, so as to fulfill being ionized again in trap.
The cavity uses polyether-ether-ketone (PEEK) material.
The ionization device again is arranged in the mass spectrum vacuum chamber.
The acceleration end cap is equipped with hollow, this is hollow to be provided with insulated end cover, and the filament is seated in the insulated end cover
On, it is connected so as to fulfill end cap is accelerated with the insulation of filament.
The acceleration end cap uses stainless steel, and insulated end cover uses polyether-ether-ketone (PEEK) material.
The acceleration end cap is connected with voltage source, and the filament is also connected with voltage source.
Added with 30V voltages on the filament, accelerate electronics to be made to accelerate to project added with -120V voltages on end cap.
The ion lens is three, and three ion lens are sequentially reduced to the close direction of ion trap, also, near
The ion lens of ion trap carries ion guide cylinder, and the electronics of injection is made to assemble, and smoothly inject ion trap.
The ion lens is connected with voltage source, and ion lens also uses stainless steel.
The cavity is equipped with electrode hole, and the ion lens passes through the electrode needle set in the electrode hole and the voltage
Source connects.
Compared with prior art, the beneficial effects of the invention are as follows：
The utility model generates electronics on filament added with voltage, is allowed to project under the electric field action for accelerating end cap, later
By the converging action of ion lens, then inject with being ionized during neutral collisions in trap in ion trap, so as to fulfill trap
Inside ionize again.The utility model, ion trap are connected with setting ionization device again, then ionization device will generate electronics and inject ion trap
It is interior, and with neutral collisions in ion trap, ionized, form new signal ion, carried for analyzing and identifying for the structure of matter
For more conclusive evidence, for chemist's search gas as the reaction mechanism of ionic reaction provides the evidence that can be observed.
Description of the drawings
Fig. 1 is that ionization device dismantles structure diagram again in the utility model；
Fig. 2 is the mass spectrometric structure diagram that the utility model ionizes again.
Specific embodiment
The mass spectrograph that the utility model ionizes again is described in further detail below in conjunction with the accompanying drawings.
As shown in Figure 1 and Figure 2, a kind of mass spectrograph ionized again, including ionization source, mass spectrum vacuum chamber 7, setting mass spectrum vacuum
Ion trap 8 in chamber 7, ion trap 8 are connected with ionization device again, then ionization device includes：
Cavity 3, one end of cavity 3 are connect with ion trap 8；
Accelerate end cap 1, be arranged on one end that cavity 3 deviates from ion trap 8；
Filament 2, with the insulation of end cap 1 is accelerated to connect；
Ion lens 4 is arranged on the middle part of cavity 3.
Cavity 3 uses polyether-ether-ketone (PEEK) material.
Ionization device is arranged in mass spectrum vacuum chamber 7 again.
The inside of end cap 1 is accelerated to be formed hollow, this is hollow to be provided with insulated end cover 5, and filament 2 is connected on the insulated end cover 5,
It is connected so as to fulfill the insulation of end cap 1 and filament 2 is accelerated.
Accelerating end cap 1, insulated end cover 5 uses polyether-ether-ketone (PEEK) material using stainless steel.
End cap 1 is accelerated to be connected with voltage source, filament 2 is also connected with voltage source.
Added with 30V voltages on filament 2, accelerate electronics to be made to accelerate to project added with -120V voltages on end cap 1.
Ion lens 4 be three, three ion lens 4 are sequentially reduced to ion trap 8 close to direction, also, near from
The ion lens 4 of sub- trap 8 carries ion guide cylinder, assembles the electronics of injection, and smoothly injects ion trap 8.
Ion lens 4 is connected with voltage source, and ion lens 4 also uses stainless steel.
Cavity 3 is equipped with electrode hole 6, and ion lens 4 is connect by the electrode needle set in electrode hole 6 with voltage source.
Cavity 3 is screwed in inside mass spectrum vacuum chamber 7,8 rear of ion trap, and cavity 3, insulated end cover 5 are by PEEK systems
Into acceleration end cap 1, ion lens 4 are made of stainless steel.
3 inside of cavity is inserted into electrode needle by the electrode hole 6 on cavity 3, is added on ion lens 4 equipped with ion lens 4
Voltage.
During the present embodiment practice, electronics is generated added with voltage on filament 2, is made under the electric field action for accelerating end cap 1
Injection, later by the converging action of ion lens 4, then inject in ion trap 8 in trap during neutral collisions by its electricity
From so as to fulfill being ionized again in trap.
The technical solution of the utility model and advantageous effect is described in detail in above-described specific embodiment,
It should be understood that the foregoing is merely the most preferred embodiment of the utility model, it is not intended to limit the utility model, it is all at this
Any modification, supplementary, and equivalent replacement done in the spirit of utility model etc., should be included in the guarantor of the utility model
Within the scope of shield.
Claims (9)
1. a kind of mass spectrograph ionized again, including the ion trap in ionization source, mass spectrum vacuum chamber, the setting mass spectrum vacuum chamber,
It is characterized in that, the ion trap is connected with ionization device again, the ionization device again includes：
Cavity, one end of cavity are connect with the ion trap；
Accelerate end cap, be arranged on one end that the cavity deviates from the ion trap；
Filament is connected with the acceleration end cap insulation；
Ion lens is arranged on the middle part of the cavity.
2. the mass spectrograph according to claim 1 ionized again, which is characterized in that the ionization device again is arranged on described
In mass spectrum vacuum chamber.
3. the mass spectrograph according to claim 1 ionized again, which is characterized in that the acceleration end cap be equipped with it is hollow, should
Hollow to be provided with insulated end cover, the filament is seated on the insulated end cover.
4. the mass spectrograph according to claim 1 ionized again, which is characterized in that the acceleration end cap is connected with voltage
Source.
5. the mass spectrograph according to claim 1 ionized again, which is characterized in that the filament is also connected with voltage source.
6. the mass spectrograph according to claim 1 ionized again, which is characterized in that the ion lens is three.
7. the mass spectrograph according to claim 6 ionized again, which is characterized in that three ion lens are to the close side of ion trap
Ion guide cylinder is carried to being sequentially reduced, also, near the ion lens of ion trap.
8. the mass spectrograph according to claim 1 ionized again, which is characterized in that the ion lens is connected with voltage
Source.
9. the mass spectrograph according to claim 8 ionized again, which is characterized in that the cavity is equipped with electrode hole, described
Ion lens is connect by the electrode needle set in the electrode hole with the voltage source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721832720.XU CN207602517U (en) | 2017-12-25 | 2017-12-25 | A kind of mass spectrograph ionized again |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721832720.XU CN207602517U (en) | 2017-12-25 | 2017-12-25 | A kind of mass spectrograph ionized again |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207602517U true CN207602517U (en) | 2018-07-10 |
Family
ID=62767633
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721832720.XU Active CN207602517U (en) | 2017-12-25 | 2017-12-25 | A kind of mass spectrograph ionized again |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207602517U (en) |
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2017
- 2017-12-25 CN CN201721832720.XU patent/CN207602517U/en active Active
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