CN203859098U - Interface for solid-phase microextraction and ionic migration spectrum - Google Patents
Interface for solid-phase microextraction and ionic migration spectrum Download PDFInfo
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- CN203859098U CN203859098U CN201420257412.9U CN201420257412U CN203859098U CN 203859098 U CN203859098 U CN 203859098U CN 201420257412 U CN201420257412 U CN 201420257412U CN 203859098 U CN203859098 U CN 203859098U
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- stainless steel
- ionic migration
- interface
- solid
- steel tube
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Abstract
The utility model discloses an interface for solid-phase microextraction and ionic migration spectrum, and the interface is used for quick connection. The interface is disposed in a stainless steel pipe, and a quartz glass liner is inserted into the interface. A resistor heating wire is disposed outside the stainless steel pipe. A fiber-glass thermal-insulating layer covers the resistor heating wire, and is wrapped by a heat shrink tube. One end of the stainless steel pipe is provided with a stainless-steel quick plug which is connected with an ionic migration spectrometer, and the other end of the stainless steel is provided with a solid-phase microextraction sample feeding end with a silica gel pad. The solid-phase microextraction sample feeding end is provided with two pin-shaped openings which are used for introducing air and carrier gas. The interface is connected with the ionic migration spectrometer, and then heating is carried out. A pin is inserted into the silica gel pad after a sample is extracted through solid-phase microextraction, and then the sample is introduced after being pushed into a solid-phase microextraction segment. The ionic migration spectrometer receives the response, and completes the analysis.
Description
Technical field
The utility model relates to a kind of interface that can be used in the coupling of quick connection SPME-ion mobility spectrometry, is especially applicable to field portable operation sample introduction.
Background technology
At present, it is little that known SPME-ion mobility spectrometry combination device is reported.Because ionic migration spectrometer is generally used for gas sampling analysis, SPME, for the process of analytical instrument sample pre-treatments, is seldom used in conjunction use.Seldom the commercial desk-top large-scale ionic migration spectrometer of amount, has the device of applying mechanically that can be used for SPME, but be SPME special purpose device, and volume volume is very large, cannot coordinate Portable hand ion mobility spectrometry scene to use.Also have report laboratory to install easily, but degree of integration is low, open way is suitable for laboratory and uses, and is not suitable for inserting the countryside portable using, fast placement operations sample introduction.
Summary of the invention
In order to overcome existing portable ionic migration spectrum instrument without special SPME-ion mobility spectrometry combination device, cannot realize plug and play, cannot realize the use of applicable field small-sized, portable, the shortcoming that module is used.The present invention solves SPME-ion mobility spectrometry combination device, can have plug and play, modularization, miniaturization, be suitable for field and use, coordinate portable ionic migration spectrum instrument, form the special SPME-ion mobility spectrometry combination device that possesses several samples matrix analysis ability.
The utility model solves the technical scheme that its technical problem adopts: a kind of SPME-ion mobility spectrometry connecting interface, it is characterized in that this interface comprises quartz liner 1, needle-like perforate 2, silica gel pad 3, circuit lead 4, heat-shrink tube 5, glass fibre thermal insulation layer 6, resistance heater wire 7, stainless steel tube 8, snap joint groove 9, ionic migration spectrometer gas circuit connector 10; At stainless steel tube 8 interpolation quartz glass bushing pipes 1, stainless steel tube 8 is outer is resistance heater wire 7, the outer cover glass fibrous insulating layer 6 of resistance heater wire 7, and the peripheral heat-shrink tube 5 that uses of glass fibre thermal insulation layer 6 wraps up.The peripheral heat-shrink tube 5 that uses of glass fibre thermal insulation layer wraps up.Two needle-like perforates 2 are opened in one end of stainless steel tube 8, and silica gel pad 3 is loaded on one end of stainless steel tube 8 and is screwed.The other end of stainless steel tube 8 possesses snap joint groove 9 for fixing connecting interface and ionic migration spectrometer, and ionic migration spectrometer gas circuit connectivity port 10 is connected with ionic migration spectrometer.
The beneficial effects of the utility model are, SPME-ion mobility spectrometry coupling special purpose device, simple in structure, can there is plug and play, modularization, miniaturization, be suitable for field and use, coordinate portable ionic migration spectrum instrument, form the special SPME-ion mobility spectrometry combination device that possesses several samples matrix analysis ability.Can use SPME to extract the harmful toxic matter in water, use SPME-ion mobility spectrometry coupling special purpose device, directly obtain testing result with ionic migration spectrometer delicately.
Brief description of the drawings
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is structural map of the present utility model.
The not sample introduction state diagram of Fig. 2 SPME-ion mobility spectrometry combination device.
The sample introduction state diagram of Fig. 3 SPME-ion mobility spectrometry combination device.
Fig. 4 SPME is extracted trimethyl phosphate-coupling in water-ionic migration spectrometer and is detected design sketch.
1 quartz liner in Fig. 1,2 needle-like perforates, 3 silica gel pads, 4 circuit leads
5 heat-shrink tubes, 6 glass fibre thermal insulation layers, 7 resistance heater wire, 8 stainless steel tubes
9 snap joint grooves, 10 ionic migration spectrometer gas circuit connectivity ports.
11 SPME handles in Fig. 2,12 hollow metal protective casings, 13 extracting fibers.
1 quartz liner in Fig. 3,2 needle-like perforates, 3 silica gel pads, 11 SPME handles, 12 hollow metal protective casings, 13 extracting fibers.
K in Fig. 4
0=1.78 peak is the reactant ion peak of trimethyl phosphate, K
0=2.08 peak is the molecular ion peak of air.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation.
SPME-ion mobility spectrometry connecting interface comprises quartz liner 1, needle-like perforate 2, silica gel pad 3, circuit lead 4, heat-shrink tube 5, glass fibre thermal insulation layer 6, resistance heater wire 7, stainless steel tube 8, snap joint groove 9, ionic migration spectrometer gas circuit connector 10; At stainless steel tube 8 interpolation quartz glass bushing pipes 1, stainless steel tube 8 is outer is resistance heater wire 7, the outer cover glass fibrous insulating layer 6 of resistance heater wire 7, and the peripheral heat-shrink tube 5 that uses of glass fibre thermal insulation layer 6 wraps up.The peripheral heat-shrink tube 5 that uses of glass fibre thermal insulation layer wraps up.Two needle-like perforates 2 are opened in one end of stainless steel tube 8, and silica gel pad 3 is loaded on one end of stainless steel tube 8 and is screwed.The other end of stainless steel tube 8 possesses snap joint groove 9 for fixing connecting interface and ionic migration spectrometer, and ionic migration spectrometer gas circuit connectivity port 10 is connected with ionic migration spectrometer.See Fig. 1.
Use SPME handle handle 11, extracting fiber 13 is shunk in to hollow metal protective casing 12.For non-sample introduction state.See Fig. 2.Using SPME handle handle 11, hollow metal protective casing 12, through silica gel pad 1, is entered to quartz liner 2, release extracting fiber 13, is sample introduction state.See Fig. 3.
Use the solid phase micro-extraction device of the PDMS/DVB of 65um, extracting concentration is the aqueous solution of 1.35ug/ml trimethyl phosphate, the method adopting is directly to insert the method for aqueous extraction, puts into SPME-ion mobility spectrometry combination device after extraction, and ion mobility spectrometry obtains K immediately
0the reactant ion peak of=1.78 trimethyl phosphate, detecting pattern is positive ion mode, sees Fig. 4.Proof has been used SPME-ion mobility spectrometry coupling special purpose device, can directly make delicately ionic migration spectrometer obtain the testing result that SPME is extracted.
Claims (1)
1. SPME-ion mobility spectrometry connecting interface, is characterized in that this interface comprises quartz liner (1), needle-like perforate (2), silica gel pad (3), circuit lead (4), heat-shrink tube (5), glass fibre thermal insulation layer (6), resistance heater wire (7), stainless steel tube (8), snap joint groove (9), ion mobility spectrometry gas circuit connector (10), at stainless steel tube (8) interpolation quartz glass bushing pipe (1), the outer resistance heater wire (7) that is wound up as of stainless steel tube (8), the outer cover glass fibrous insulating layer of resistance heater wire (7) (6), glass fibre thermal insulation layer (6) is peripheral with heat-shrink tube (5) parcel, two needle-like perforates (2) are opened in one end of stainless steel tube (8), silica gel pad (3) is loaded on one end of stainless steel tube (8) and is screwed, the other end of stainless steel tube (8) is provided with snap joint groove (9) for the fixing connecting interface of ionic migration spectrometer, ionic migration spectrometer gas circuit connectivity port (10) is connected with ionic migration spectrometer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420257412.9U CN203859098U (en) | 2014-05-20 | 2014-05-20 | Interface for solid-phase microextraction and ionic migration spectrum |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420257412.9U CN203859098U (en) | 2014-05-20 | 2014-05-20 | Interface for solid-phase microextraction and ionic migration spectrum |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203859098U true CN203859098U (en) | 2014-10-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420257412.9U Expired - Fee Related CN203859098U (en) | 2014-05-20 | 2014-05-20 | Interface for solid-phase microextraction and ionic migration spectrum |
Country Status (1)
| Country | Link |
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| CN (1) | CN203859098U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108020593A (en) * | 2018-01-04 | 2018-05-11 | 上海慧多信息科技发展有限公司 | The integrated ion gun ion mobility spectrometry apparatus of one kind sampling ionization |
| CN109632437A (en) * | 2018-12-14 | 2019-04-16 | 北京化工大学 | A kind of sample-pretreating method of the on-site test based on ion mobility spectrometry |
-
2014
- 2014-05-20 CN CN201420257412.9U patent/CN203859098U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108020593A (en) * | 2018-01-04 | 2018-05-11 | 上海慧多信息科技发展有限公司 | The integrated ion gun ion mobility spectrometry apparatus of one kind sampling ionization |
| CN109632437A (en) * | 2018-12-14 | 2019-04-16 | 北京化工大学 | A kind of sample-pretreating method of the on-site test based on ion mobility spectrometry |
| CN109632437B (en) * | 2018-12-14 | 2020-07-24 | 北京化工大学 | Sample pretreatment method based on-site detection of ion mobility spectrometry |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141001 Termination date: 20180520 |