CN202471497U - Non-contact sampling device for ion mobility spectrometer - Google Patents
Non-contact sampling device for ion mobility spectrometer Download PDFInfo
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- CN202471497U CN202471497U CN201220011624XU CN201220011624U CN202471497U CN 202471497 U CN202471497 U CN 202471497U CN 201220011624X U CN201220011624X U CN 201220011624XU CN 201220011624 U CN201220011624 U CN 201220011624U CN 202471497 U CN202471497 U CN 202471497U
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- base
- inner catheter
- sampling apparatus
- ionic migration
- migration spectrometer
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Abstract
The utility model aims to provide a non-contact sampling device for an ion mobility spectrometer. The sampling device comprises a base, a internal conduit and an outer barrel cover, wherein the internal conduit penetrates and is fixed on the base; the outer barrel cover is arranged outside the internal conduit and is fixed on the base; at least two fans are symmetrically arranged on the base; the internal ends of the outlets of the fans are tangent to the inner wall of the outer barrel cover; wind boards are arranged at the outer ends of the outlets of the fans; the rear end of the internal conduit is connected with an ionization chamber of a drift tube; an air suction pump is arranged at the rear end of the ionization chamber and is communicated with the internal conduit; and a heating source is arranged a ring-shaped space between the internal conduit and the outer barrel cover. Compared with the prior art, the sampling area is increased to improve the sampling efficiency; and the solid or liquid samples can be in direct collect without touching the surfaces of the samples, so as to prevent dust and other particles from entering the ion mobility spectrometer. Moreover, the purposes of the non-contact sampling device, such as no consumptive material and convenience in use, are achieved.
Description
Technical field
The utility model relates to a kind of sampling apparatus, and the noncontact sampling apparatus of solid and fluid sample is gathered in particularly a kind of noncontact that is used for ionic migration spectrometer.
Background technology
The ion mobility spectrometry technology is a kind of separation detection technology that occurs the external seventies in last century; Its ultimate principle is: solid particle or fluid sample are resolved gasification; Sample after the gasification gets into ionization chamber generation ion reaction under the guiding function of sample introduction gas, when the ionization door was opened, Ionized sample got into the drift region; Migration under the effect of extra electric field realizes distinguishing of molecule according to transit time.
In the safety check field, be very important work to the detection of explosive, drugs etc.Because the ion mobility spectrometry technology has fast, sensitivity and be suitable for characteristics such as work on the spot, the ionic migration spectrometer of a lot of explosive detection or drugs occurred.
But existing ionic migration spectrometer all need solve an important problem, promptly how effectively solid sample to be sent in the instrument from the surface of sampling and analyzes.The method of sampling commonly used at present is a cleaning sampling; Surface with cleansing tissue wiping examine article; Obtain the residuals of trace, then cleansing tissue is inserted sampling device, sampling device heating cleansing tissue; Make the sample gasification of cleansing tissue surface adsorption, the sample of gasification is gone into ionization chamber by the sample introduction band of gas again.Above-mentioned this sample mode is difficult for carrying out (as to not allowing the sample sampling of directly contact) in some occasion, and cleaning sampling can collect particles such as dust in the lump, and then pollutes instrument, and influence detects.In addition, cleansing tissue can not be reused, and needs a large amount of consumptive materials (cleansing tissue), increases cost; Simultaneously, the cleaning sampling more complicated is used some inconvenience.
Therefore, need a kind of noncontact sampling apparatus that is used for ionic migration spectrometer especially, solved the problem of above-mentioned existing existence.
The utility model content
The purpose of the utility model is to provide a kind of noncontact sampling apparatus that is used for ionic migration spectrometer; Deficiency to prior art; Sample surfaces be can directly not contact and solid or fluid sample gathered; And it is inner to avoid taking particles such as dust to the ion mobility spectrometry instrument, need not consumptive material, easy to use.
The technical matters that the utility model solved can adopt following technical scheme to realize:
A kind of noncontact sampling apparatus that is used for ionic migration spectrometer; It is characterized in that; It comprises a base, an inner catheter and a urceolus cover, and said inner catheter passes and is fixed on the said base, and said urceolus cover is arranged on the outside of said inner catheter and is fixed on the said base; Symmetry is provided with at least two fans on said base; The inner at the air outlet place of said fan is tangential on the inwall of said urceolus cover; The outer end at the air outlet place of said fan is provided with deep bead, and the rear end of said inner catheter is connected with the ionization chamber of drift tube, is provided with asepwirator pump in the rear end of ionization chamber; Said asepwirator pump communicates with said inner catheter, is provided with heating source in the annular space between said inner catheter and the said urceolus cover.
In an embodiment of the utility model, said base, inner catheter and urceolus cover are arranged on the same central shaft.
In an embodiment of the utility model, be pasted with ceramic annulus at the front inner wall place of said urceolus cover.
In an embodiment of the utility model, the air inlet place of said fan is connected with the ventilation slot that band filters core.
In an embodiment of the utility model, the front end of said inner catheter is provided with trumpet-shaped opening, the rear end of the said inner catheter shape that is convexly curved.
In an embodiment of the utility model, said heating source is fixed on the said base through ceramics pole.
In an embodiment of the utility model, said heating source is one to be wound in circular nickel chromium triangle heater strip.
The noncontact sampling apparatus that is used for ionic migration spectrometer of the utility model has following advantage:
(1) to solid or fluid sample noncontact sampling, the inconvenience of having avoided Direct Sampling to bring, it is collected to reduce particle such as dust again, has reduced the pollution of instrument;
(2) distance of noncontact sampling is far away, and flexible in the extreme;
(3) consumptive material such as no cleansing tissue, use cost is low.
The noncontact sampling apparatus that is used for ionic migration spectrometer of the utility model compared with prior art, increases sampling area, improves sampling efficiency; Can directly not contact sample surfaces and gather solid or fluid sample, and it is inner to avoid taking particles such as dust to the ion mobility spectrometry instrument, need not consumptive material, easy to use, the purpose of realization the utility model.
The characteristics of the utility model can consult this case graphic and below better embodiment detailed description and obtain to be well understood to.
Description of drawings
Fig. 1 is the structural representation of the noncontact sampling apparatus that is used for ionic migration spectrometer of the utility model;
Fig. 2 is the structural representation of the noncontact sampling apparatus front end of the utility model;
Fig. 3 is the synoptic diagram of the noncontact sampling apparatus principle of work of the utility model.
Embodiment
For technological means, creation characteristic that the utility model is realized, reach purpose and be easy to understand understanding with effect, below in conjunction with concrete diagram, further set forth the utility model.
As depicted in figs. 1 and 2; The noncontact sampling apparatus that is used for ionic migration spectrometer of the utility model; It comprises a base 100, an inner catheter 200 and a urceolus cover 300; Inner catheter 200 passes and is fixed on the base 100, and urceolus cover 300 is arranged on the outside of inner catheter 200 and is fixed on the base 100; On base 100 symmetry be provided with at least two fans 110, the inner at the air outlet place of fan 110 is tangential on the inwall of urceolus cover 300, the outer end at the air outlet place of fan 110 is provided with deep bead 120, thereby makes the eolian whirlwind that blasts and go out; The rear end of inner catheter 200 is connected with the ionization chamber 410 of drift tube 400, is provided with asepwirator pump 420 in the rear end of ionization chamber 410, and asepwirator pump 420 communicates with inner catheter 200, is provided with heating source 500 in the annular space between inner catheter 200 and the urceolus cover 300.
In the utility model, said base 100, inner catheter 200 and urceolus cover 300 are arranged on the same central shaft, and the air entry of inner catheter 200 is equal with the gas outlet of urceolus cover 300.
In the utility model, be pasted with ceramic annulus 310 at the front inner wall place of said urceolus cover 300.
In the utility model, the air inlet place of said fan 110 is connected with the ventilation slot 140 that band filters core 130.
In the utility model, the front end of inner catheter 200 is provided with trumpet-shaped opening, the rear end of inner catheter 200 shape that is convexly curved.
In the utility model, said heating source 500 is fixed on the said base through ceramics pole 510; Said heating source 500 is one to be wound in circular nickel chromium triangle heater strip.
As shown in Figure 3, during sampling, 1-5cm place before sample places injection port, heating source 500, fan 110 and asepwirator pump 420 are started working; Heating source 500 moment high temperature discharges heat, and rotation gas that fan 110 blows out 150 is taken heat out of, arrives sampling surface 160, sample gas is dissolved analysed, and have the effect that sample improves sampling efficiency of gathering; Air-flow revolution simultaneously, the sample of gasification are got into the ionization chamber 410 of drift tube 400 inside by asepwirator pump 420 suctions.
The noncontact sampling apparatus that is used for ionic migration spectrometer of the utility model can realize that apart from the sample collecting of injection port 1-5cm scope the sensitivity that records is the ng level; Can gather solid or fluid sample noncontact; Reduced the pollution of instrument, consumptive materials such as no cleansing tissue, use cost is low; And device is simple, and is easy to use.
More than show and described ultimate principle of the utility model and the advantage of principal character and the utility model.The technician of the industry should understand; The utility model is not restricted to the described embodiments; The principle of describing in the foregoing description and the instructions that the utility model just is described, under the prerequisite that does not break away from the utility model spirit and scope, the utility model also has various changes and modifications; These variations and improvement all fall in the utility model scope that requires protection, and the utility model requires protection domain to be defined by appending claims and equivalent thereof.
Claims (7)
1. noncontact sampling apparatus that is used for ionic migration spectrometer; It is characterized in that; It comprises a base, an inner catheter and a urceolus cover, and said inner catheter passes and is fixed on the said base, and said urceolus cover is arranged on the outside of said inner catheter and is fixed on the said base; Symmetry is provided with at least two fans on said base; The inner at the air outlet place of said fan is tangential on the inwall of said urceolus cover; The outer end at the air outlet place of said fan is provided with deep bead, and the rear end of said inner catheter is connected with the ionization chamber of drift tube, is provided with asepwirator pump in the rear end of ionization chamber; Said asepwirator pump communicates with said inner catheter, is provided with heating source in the annular space between said inner catheter and the said urceolus cover.
2. the noncontact sampling apparatus that is used for ionic migration spectrometer as claimed in claim 1 is characterized in that said base, inner catheter and urceolus cover are arranged on the same central shaft.
3. the noncontact sampling apparatus that is used for ionic migration spectrometer as claimed in claim 1 is characterized in that, is pasted with ceramic annulus at the front inner wall place of said urceolus cover.
4. the noncontact sampling apparatus that is used for ionic migration spectrometer as claimed in claim 1 is characterized in that, the air inlet place of said fan is connected with the ventilation slot that band filters core.
5. the noncontact sampling apparatus that is used for ionic migration spectrometer as claimed in claim 1 is characterized in that the front end of said inner catheter is provided with trumpet-shaped opening, the rear end of the said inner catheter shape that is convexly curved.
6. the noncontact sampling apparatus that is used for ionic migration spectrometer as claimed in claim 1 is characterized in that said heating source is fixed on the said base through ceramics pole.
7. the noncontact sampling apparatus that is used for ionic migration spectrometer as claimed in claim 1 is characterized in that, said heating source is one to be wound in circular nickel chromium triangle heater strip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220011624XU CN202471497U (en) | 2012-01-11 | 2012-01-11 | Non-contact sampling device for ion mobility spectrometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220011624XU CN202471497U (en) | 2012-01-11 | 2012-01-11 | Non-contact sampling device for ion mobility spectrometer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202471497U true CN202471497U (en) | 2012-10-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220011624XU Expired - Fee Related CN202471497U (en) | 2012-01-11 | 2012-01-11 | Non-contact sampling device for ion mobility spectrometer |
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| Country | Link |
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| CN (1) | CN202471497U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105203352A (en) * | 2014-06-18 | 2015-12-30 | 中国科学院大连化学物理研究所 | Non-contact suction-type sampling device |
| WO2016107515A1 (en) * | 2014-12-31 | 2016-07-07 | 同方威视技术股份有限公司 | Sample collection, thermal analysis, and sample injection apparatus and method, and trace detection device |
| CN106872557A (en) * | 2017-02-28 | 2017-06-20 | 苏州安益谱精密仪器有限公司 | Safe examination system, Ion transfer spectrum detection device and safety inspection method |
| CN108089067A (en) * | 2016-11-23 | 2018-05-29 | 中国科学院大连化学物理研究所 | A kind of Electrostatic collection method for ionic migration spectrometer |
-
2012
- 2012-01-11 CN CN201220011624XU patent/CN202471497U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105203352A (en) * | 2014-06-18 | 2015-12-30 | 中国科学院大连化学物理研究所 | Non-contact suction-type sampling device |
| WO2016107515A1 (en) * | 2014-12-31 | 2016-07-07 | 同方威视技术股份有限公司 | Sample collection, thermal analysis, and sample injection apparatus and method, and trace detection device |
| US10215666B2 (en) | 2014-12-31 | 2019-02-26 | Nuctech Company Limited | Sample injection device and method for sample collection and sample thermal desorption, and trace detection apparatus |
| CN108089067A (en) * | 2016-11-23 | 2018-05-29 | 中国科学院大连化学物理研究所 | A kind of Electrostatic collection method for ionic migration spectrometer |
| CN106872557A (en) * | 2017-02-28 | 2017-06-20 | 苏州安益谱精密仪器有限公司 | Safe examination system, Ion transfer spectrum detection device and safety inspection method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121003 Termination date: 20200111 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |