CN104637777B - Reverse air blowing structure for mass spectrometer - Google Patents
Reverse air blowing structure for mass spectrometer Download PDFInfo
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- CN104637777B CN104637777B CN201510084082.7A CN201510084082A CN104637777B CN 104637777 B CN104637777 B CN 104637777B CN 201510084082 A CN201510084082 A CN 201510084082A CN 104637777 B CN104637777 B CN 104637777B
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- blowback
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Abstract
The invention discloses a reverse air blowing structure for a mass spectrometer. The reverse air blowing structure comprises a reverse air blowing cone, an internal support component, a sample feeding cone, a heating ring and a baffle ring component, wherein the reverse air blowing cone is provided with a reverse blowing air input opening, the internal support component is arranged inside the reverse air blowing cone, the sample feeding cone is arranged inside the reverse air blowing cone and at the front part of an internal support component and is provided with a sample feeding cavity, the heating ring is arranged on the periphery of the sample feeding cone, and the baffle ring component forms a passage. The reverse air blowing structure has the advantages that the outsourcing standard heating ring is simply arranged at the outer side of the sample feeding cone, and in addition, a reverse blowing air heating passage is added, so that the reverse blowing air preheating effect can be improved, the reverse blowing air temperature is properly raised, the drying atomization effect on ions can be further improved, more effective ions can be increased to enter a subsequent system, the utilization rate of samples can be improved, and in addition, the sensitivity of detecting signals is further improved.
Description
Technical field
The present invention relates to analysis and detecting instrument technical field, more particularly, to a kind of mass spectrograph blowback air structure.
Background technology
In current mass spectrometer configuration, in order to obtain preferably detection, it is required that treating of working well of atomization drying
Survey drop and enter cone mouth, sample can spurt into No. zero cone after preliminary ionizing, before into sample introduction cone cone,
Sample in blowback pore cone needs the blowback air being injected into（Generally select the stable elementary gas of chemistry and physical property）Enter
One step is acted on：Blowback is fallen not by the big drop molecule of neutrality of electric field action, and dry nebulization droplet further increases ionizing
Effect, is made more than existing structure using the integrated ceramic of heating, is involved great expense, and sample utilisation is relatively low.
The content of the invention
In view of this, need to overcome at least one of drawbacks described above of the prior art.The invention provides a germplasm
Spectrometer blowback air structure, including：
Blowback gas coning with blowback air input port, the internal support member inside the blowback gas coning is installed
Inside the blowback gas coning and the internal support member is anterior and sample introduction cone with sample introduction chamber, and installed in described
The heating ring of sample introduction cone periphery and the back-up ring part of formation path, the heating ring is that ceramic structure heats ring, the ceramics
Outside junction is bored with the sample introduction and there is microgap in structure heating ring inner side.
Compared with prior art, made using the integrated ceramic of heating more than existing structure, involved great expense, sample utilisation
It is relatively low；By the present invention in that being simply mounted at sample introduction cone outside, low cost with outsourcing standard heating ring, and increase blowback air
Plus the passage of heat allows to the pre-heat effect to blowback air more preferably, properly increases the temperature of blowback air, can further improve right
The dry nebulization effect of ion, increases more effective ions and enters follow-up system, it is possible to increase the utilization rate of sample, goes forward side by side
The sensitivity of the raising detection signal of one step.
In addition, mass spectrograph blowback air structure disclosed by the invention also has following additional technical feature:
Further, the back-up ring number of components is 1, is added installed in the inner side of the blowback gas coning outer wall and with described
Hot ring constitutes the blowback air gas circuit that front end chamber is bored by the blowback air input port to the sample introduction.
Back-up ring part can increase blowback air preheating channel, increase pre-heat effect, further increase energy-saving effect.
Further, the back-up ring number of components is more than or equal to 2, and the back-up ring part is staggered installation of successively described anti-
Blow and bore the inner side and internal support member outside of outer wall and constitute by the blowback air input port extremely with the heating ring
The sample introduction bores the blowback air gas circuit of front end chamber.
The increase of back-up ring number of components, can further increase blowback air preheating channel.
Further, the ceramic structure heating ring is fixed by the supporting construction on the inside of the blowback gas coning and propped up
Support, or support is fixed by the supporting construction in the internal support member or sample introduction cone, or tied by above-mentioned support
Structure combines fixed support.
Further, the microgap gap is 0.01 between 0.5mm.
The additional aspect of the present invention and advantage will be set forth in part in the description, and partly will become from the following description
Obtain substantially, or recognized by the practice of the present invention.
Description of the drawings
The above-mentioned and/or additional aspect and advantage of the present invention will become from the following description of the accompanying drawings of embodiments
It is substantially and easy to understand, wherein：
Fig. 1 is the schematic diagram of the embodiment of the present invention；
Wherein, 1, sample introduction cone, 2 blowback gas conings, 3 heating rings, 4 back-up ring parts, 5 gaps, 51 is blowback air input port.
Specific embodiment
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings, wherein from start to finish
Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached
The embodiment of figure description is exemplary, is only used for explaining the present invention, and is not construed as limiting the claims.
In describing the invention, it is to be understood that term " on ", D score, " bottom ", " top ", "front", "rear",
The orientation or position relationship of the instruction such as " interior ", " outward ", "left", "right" is, based on orientation shown in the drawings or position relationship, to be only
For the ease of the description present invention and simplified description, rather than indicate or imply that the device or element of indication there must be specifically side
Position, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.
In describing the invention, it should be noted that unless otherwise clearly defined and limited, term " connection ", " company
It is logical ", " connected ", " connection ", " cooperation " should be interpreted broadly, for example, it may be fixedly connected, be integrally connected, or
It is detachably connected；It can be the connection of two element internals；Can be joined directly together, it is also possible to by the indirect phase of intermediary
Even；For the ordinary skill in the art, above-mentioned term concrete meaning in the present invention can be understood with concrete condition.
The inventive concept of the present invention is as follows, and by using outsourcing standard heating ring sample introduction cone outside is simply mounted at, and
The passage of heat that adds for increasing blowback air causes the pre-heat effect of blowback air more preferable.
Below with reference to accompanying drawings describing mass spectrograph blowback air structure of the invention in detail, wherein, Fig. 1 is the present invention
The schematic diagram of embodiment.
As Fig. 1 shows, the mass spectrograph blowback air structure of the specific embodiment of the invention, including：With blowback air input port 51
Blowback gas coning 2, the internal support member inside blowback gas coning 2, installed in the inside of blowback gas coning 2 and internal support member
Sample introduction cone 1 anterior and with sample introduction chamber, and bore the heating ring 3 of 1 periphery installed in sample introduction and form the back-up ring of path
Part 4, the heating ring 3 is that ceramic structure heats ring, the inner side of ceramic structure heating ring 3 and the outside knot of sample introduction cone 1
There is microgap at conjunction.
Some embodiments of the invention, the quantity of back-up ring part 4 be 1, installed in the inner side of the outer wall of blowback gas coning 2 and
The blowback air gas circuit that 1 front end chamber is bored by blowback air input port to sample introduction is constituted with heating ring 3.
Back-up ring part 4 can increase blowback air preheating channel, increase pre-heat effect, further increase energy-saving effect.
Some embodiments of the invention, the quantity of back-up ring part 4 is more than or equal to 2, and back-up ring part 4 is staggered installation of successively
Constitute on the outside of the inner side of the outer wall of blowback gas coning 2 and internal support member and with heating ring 3 and bored by blowback air input port to sample introduction
The blowback air gas circuit of front end chamber.
The increase of back-up ring number of components, can further increase blowback air preheating channel.
The present invention uses the ceramic structure heating ring of standard, not only easy for installation, while cost is also low.
According to one embodiment of present invention, ceramic structure heating ring is by the supporting construction installed in the inner side of blowback gas coning 2
It is fixed to support, or supported by the supporting construction fixation in internal support member or sample introduction cone, or by above-mentioned supporting construction
With reference to fixed support.
Further, the gap of microgap 5 is 0.01 between 0.5mm.
Although having carried out detailed retouching to the specific embodiment of the present invention with reference to multiple illustrative examples of the present invention
State, it must be understood that those skilled in the art can be designed that various other improvement and embodiment, these improvement and enforcement
Example will fall within spirit and scope.Specifically, in the scope of aforementioned disclosure, accompanying drawing and claim
Within, rational modification and improvement can be made in terms of the arrangement of parts and/or sub-combination layout, without departing from
The spirit of the present invention.Modification and improvement in terms of except parts and/or layout, its scope is by claims and its equivalent
Thing is limited.
Claims (5)
1. a kind of mass spectrograph blowback air structure, it is characterised in that include：Blowback gas coning with blowback air input port, is arranged on
Internal support member inside the blowback gas coning, installed in blowback gas coning inside and the internal support member it is anterior and
Sample introduction with sample introduction chamber cone, and bore the heating ring of periphery installed in the sample introduction and form the back-up ring part of path,
The ring that heats is that ceramic structure heats ring, and the ceramic structure heating ring inner side has micro- with sample introduction cone outside junction
Gap.
2. mass spectrograph blowback air structure according to claim 1, it is characterised in that the back-up ring number of components is 1, peace
It is mounted in the inner side of the blowback gas coning outer wall and constitutes by before the blowback air input port to sample introduction cone with the heating ring
The blowback air gas circuit of end chamber.
3. mass spectrograph blowback air structure according to claim 1, it is characterised in that the back-up ring number of components is more than or equal to
2, the back-up ring part be staggered installation of successively on the outside of the inner side of the blowback gas coning outer wall and the internal support member and
The blowback air gas circuit that front end chamber is bored by the blowback air input port to the sample introduction is constituted with the heating ring.
4. mass spectrograph blowback air structure according to claim 1, it is characterised in that the ceramic structure heating ring is by installing
Supporting construction on the inside of the blowback gas coning is fixed and supported, or by the internal support member or sample introduction cone
Supporting construction fix and support, or fixed support is combined by above-mentioned supporting construction.
5. mass spectrograph blowback air structure according to claim 1, it is characterised in that the microgap gap is arrived for 0.01
Between 0.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510084082.7A CN104637777B (en) | 2015-02-16 | 2015-02-16 | Reverse air blowing structure for mass spectrometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510084082.7A CN104637777B (en) | 2015-02-16 | 2015-02-16 | Reverse air blowing structure for mass spectrometer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104637777A CN104637777A (en) | 2015-05-20 |
| CN104637777B true CN104637777B (en) | 2017-05-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510084082.7A Active CN104637777B (en) | 2015-02-16 | 2015-02-16 | Reverse air blowing structure for mass spectrometer |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103959428A (en) * | 2011-11-21 | 2014-07-30 | Dh科技发展私人贸易有限公司 | System and method for applying curtain gas flow in a mass spectrometer |
| CN204391044U (en) * | 2015-02-16 | 2015-06-10 | 江苏天瑞仪器股份有限公司 | A kind of mass spectrometer blowback air structure |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10172504A (en) * | 1996-12-06 | 1998-06-26 | Hitachi Ltd | Mass spectrometry device |
| US8084736B2 (en) * | 2008-05-30 | 2011-12-27 | Mds Analytical Technologies, A Business Unit Of Mds Inc. | Method and system for vacuum driven differential mobility spectrometer/mass spectrometer interface with adjustable resolution and selectivity |
| US20110183431A1 (en) * | 2010-01-28 | 2011-07-28 | MDS Analytical Technologies, a business unit of MDS, Inc. | Mass analysis system with low pressure differential mobility spectrometer |
| WO2012047465A1 (en) * | 2010-09-27 | 2012-04-12 | Dh Technologies Development Pte. Ltd. | Method and system for providing a dual curtain gas to a mass spectrometry system |
| US9916969B2 (en) * | 2013-01-14 | 2018-03-13 | Perkinelmer Health Sciences Canada, Inc. | Mass analyser interface |
-
2015
- 2015-02-16 CN CN201510084082.7A patent/CN104637777B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103959428A (en) * | 2011-11-21 | 2014-07-30 | Dh科技发展私人贸易有限公司 | System and method for applying curtain gas flow in a mass spectrometer |
| CN204391044U (en) * | 2015-02-16 | 2015-06-10 | 江苏天瑞仪器股份有限公司 | A kind of mass spectrometer blowback air structure |
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| CN104637777A (en) | 2015-05-20 |
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