CN206258418U - Gas-chromatography and ion mobility spectrometry equipment - Google Patents
Gas-chromatography and ion mobility spectrometry equipment Download PDFInfo
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- CN206258418U CN206258418U CN201621346732.7U CN201621346732U CN206258418U CN 206258418 U CN206258418 U CN 206258418U CN 201621346732 U CN201621346732 U CN 201621346732U CN 206258418 U CN206258418 U CN 206258418U
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- mobility spectrometry
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Abstract
The utility model discloses a kind of gas-chromatography and ion mobility spectrometry equipment.Gas-chromatography includes housing and is attached to housing and interconnection the sample introduction oral area, boundling capillary column and the transference tube that divide the analysis of variance for gaseous substance with ion mobility spectrometry equipment.Gas-chromatography also includes with ion mobility spectrometry equipment：Air path part, is connected with transference tube, for providing gas to transference tube and receiving the gas discharged from transference tube；Cushioning base, can releasably be installed on housing and be capable of the vibration of isolation buffer base exterior, and the transference tube is arranged on cushioning base, and wherein air path part is installed in the built-in space of cushioning base.
Description
Technical field
The utility model is related to technical field of analysis and detection, more particularly to a kind of gas-chromatography and ionic migration spectrometer (GC-
IMS equipment associated with).
Background technology
Gas-chromatography has the strong separating power of gas-chromatography (GC) and Ion transfer concurrently with ionic migration spectrometer GC-MS
(IMS) sensitivity is high for spectrum, good resolution, fast response time etc. the characteristics of, the technology is obtained in analysis detection field in recent years
Enough attention and swift and violent development.
Gas-chromatography-ion mobility spectrometry is related to gas-chromatography and ion mobility spectrometry simultaneously, wherein comprising pressure and flow control
Device processed, gas cleaning plant, air pump, injection port, chromatographic column/post case/set, migration tube, high pressure, frontend amplifying circuit, heating electricity
Road, middle control circuit etc., each sub-unit species is various, causes equipment to connect complicated, difficult in maintenance, while reaching method through Drift electrodes
Draw the signal extremely faint (10 of disk-13C), the air pulse of membrane pump, the vibration between fan and cabinet, extraneous electromagnetism
Interference etc. all can produce strong interference to detector signal.Further, since ion mobility spectrometry has high detection sensitivity
(ppb~ppt magnitudes), after the gas-chromatography-ion mobility spectrometry of gas mode of operation is separated with source of the gas, pure detector cavity or
Gas in pipelines can be swapped with environmental gas, and reconnecting needed when starting could obtain surely through prolonged gas purification
Fixed spectrum shape, reduces operating efficiency.Above-mentioned factor is all unfavorable for the batch production and popularization of gas-chromatography-ion mobility spectrometry.
Utility model content
According to one side of the present utility model, it provides a kind of gas-chromatography and ion mobility spectrometry equipment, including shell
Body and be attached to housing and the sample introduction oral area of point analysis of variance for gaseous substance of interconnection, boundling capillary column and
Transference tube；Wherein, gas-chromatography also includes with ion mobility spectrometry equipment：
Air path part, is connected with transference tube, for providing gas to transference tube and receiving from transference tube
The gas of discharge；
Cushioning base, can releasably be installed on housing and be capable of the vibration of isolation buffer base exterior, the ion
Migration tube is arranged on cushioning base, and wherein air path part is installed in the built-in space of cushioning base.
In one embodiment, gas-chromatography also includes circuit control unit with ion mobility spectrometry equipment, is arranged for controlling for
The operation of gas-chromatography and ion mobility spectrometry equipment, wherein the circuit control unit integral arrangement in cushioning base positioned at built-in
Part on space and arranged in the way of it can separate with air path part.
In one embodiment, the air path part includes first cushion chamber and the second cushion chamber of cavity body structure, first
Cushion chamber and the second cushion chamber are respectively communicated with the negative mode discharge gas interface and holotype discharge gas interface of transference tube, so as to
The gas that gas interface and holotype discharge gas interface discharge are discharged from negative mode is received respectively.
In one embodiment, the air path part also includes the 3rd cushion chamber, and the first cushion chamber and the second cushion chamber are arranged
The gas for going out at least partly flows into the 3rd cushion chamber, and at least part of exhaust of the 3rd cushion chamber is passed into transference tube work
It is auxiliary sample introduction gas.
In one embodiment, the air path part also includes molecular sieve, is configured at the 3rd cushion chamber upstream so that from the
One cushion chamber and the gas of the second cushion chamber discharge flow into the 3rd cushion chamber after being purified by the molecular sieve filtration.
In one embodiment, the air path part also includes the first membrane pump and the second membrane pump, respectively positioned at first
Cushion chamber and the second cushion chamber downstream simultaneously connect the first cushion chamber and the second cushion chamber respectively.
In one embodiment, can be independently close by valve between the first cushion chamber, the second cushion chamber and the 3rd cushion chamber
Envelope.
In one embodiment, at least 5 times Ion transfer pipe volumes of the volume of the first and second cushion chambers.
In one embodiment, at least 5 times Ion transfer pipe volumes of the volume of the 3rd cushion chamber.
In one embodiment, circuit control unit is shielded using radome.
Brief description of the drawings
Fig. 1 is the sample introduction according to a kind of gas-chromatography of specific embodiment of the present utility model and ion mobility spectrometry equipment
Oral area, boundling capillary column and Ion transfer tube portion；
Fig. 2 is the air path part according to a kind of gas-chromatography of implementation method of the present utility model and ion mobility spectrometry equipment
Schematic diagram；
Fig. 3 is shown with the layout of ion mobility spectrometry equipment according to a kind of gas-chromatography of implementation method of the present utility model
It is intended to.
Specific embodiment
Although the utility model allows various modifications and interchangeable form, its specific embodiment passes through example
Mode be shown in the drawings, and will be described herein in detail.It should be appreciated, however, that the accompanying drawing enclosed and detailed
Description is not configured to for the utility model to be restricted to disclosed concrete form, but conversely, is fallen into by enclosing to cover
All of modification, equivalents and alternative forms in the spirit and scope of the present utility model that claim is limited.Accompanying drawing is
In order to illustrate, thus draw not to scale.
Below according to brief description of the drawings according to multiple embodiments of the present utility model.
Embodiment of the present utility model provides a kind of gas-chromatography and the general equipment 100 of Ion transfer, including housing 136 and
It is attached to housing 136 and interconnection the sample introduction oral area 114 for being input into the gas containing sample, dividing for gaseous substance
From boundling capillary column 112 and analysis for gaseous substance transference tube 111.Gas-chromatography and ion mobility spectrometry equipment
100 also include：Air path part, is connected with transference tube 111, for provide gas to transference tube 111 and receive from from
The gas of sub- migration tube discharge；Cushioning base 120, can releasably be attached to housing 136 and being capable of isolation buffer base portion 120
Outside vibration, the transference tube is arranged on cushioning base 120, and wherein air path part is installed on cushioning base 120
In built-in space.Cushioning base 120 can be disassembled easily from housing, including part inside cushioning base is split together
Unload so that part extremely convenient is changed in maintenance.In the present embodiment, air path part is placed in the built-in space of cushioning base,
So as to be isolated from the outside, do not influenceed by extraneous impurity and vibration, and can be dismantled from housing together with cushioning base
Separate, it is easy to maintenance.
In the present embodiment, gas-chromatography can include gas-chromatography and ion mobility spectrometry two with ion mobility spectrometry equipment
Point.Gas-chromatography part can include sample introduction oral area 114 and chromatographic column, and chromatographic column can be capillary chromatograph or boundling capillary column
112.Gas-chromatography part can also be including chromatogram gas circuit and chromatographic column sleeve pipe etc..Chromatographic column appurtenances can include chromatographic column
Case or chromatographic column sleeve pipe, in the present embodiment, preferably post imitates the fast boundling capillary column sleeve pipe 113 of high, separating rate.Boundling hair
Buttress shaft 112 carries out heating and thermal insulation under the protection of boundling capillary column sleeve pipe 113, while boundling capillary column sleeve pipe 113 is additionally operable to collection
Beam capillary column 112 and sample introduction oral area 114 and being tightly connected between migration tube 111.Moved including ion ion mobility spectrometry part
Pipe 111 is moved, transference tube 111 includes holotype and negative mode.Holotype and negative mode refer to holotype migration pipe end and add
Positive voltage, can detect the material similar to the class of drugs one；Negative mode refers to migration pipe end plus negative high voltage, can detect that TNT etc. is quick-fried
Fried thing sample.
Migration tube is preferably integral sintering ceramics migration tube, and the sintering processing of integration causes the heat-resisting quantity of migration tube
Energy, sealing and shock resistance more preferably, are conducive to the detection and analysis of test sample.Transference tube 111 can be other forms
Transference tube.
In the present embodiment, sample introduction oral area 114 is preferably using the injection port that can switch between shunting and not shunting
Portion 114.
In one embodiment of the present utility model, gas-chromatography can include intermediate connector with ion mobility spectrometry equipment
110, being tightly connected and color between its docking for being used for positive negative mode transference tube and chromatographic column and transference tube 111
Compose the fixation of post-transference tube.Intermediate connector is tightly connected with boundling capillary column 112 and boundling capillary column sleeve pipe 113
Middle part preferably using intensity is high, thermal conductivity factor is good surface through transpassivation metal, such as copper is made, to prevent chromatogram from dragging
Tail.Further, to ensure interfering with each other and migrating the seal of tube for the insulation between positive and negative pattern and voltage or electric field, centre connects
Junctor both sides are using high temperature resistant, good insulating and the little insulating materials of the coefficient of expansion, such as dense form PTFE/PEEK material systems
Make, and metal part is grounded.
In one embodiment of the present utility model, cushioning base 120 is made using stainless steel or duralumin, will can be buffered
The interference and insulations such as the vibration outside base portion 120, can also set built-in space, and air path part is installed on the interior of cushioning base 120
Between being empty (such as Fig. 3 shows).The installation that cushioning base 120 is additionally operable to gas-chromatography-ion mobility spectrometry and its associated components is fixed.
In one embodiment, gas-chromatography also includes circuit control unit with ion mobility spectrometry equipment 100, is configured to control
The operation of gas-chromatography processed and ion mobility spectrometry equipment 100, wherein the circuit control unit integral arrangement is in cushioning base 120
Part on built-in space and arranged in the way of it can separate with air path part.By circuit control unit integral arrangement
Arrange it is favourable in the way of it can separate in the part on built-in space of cushioning base and with air path part,
Housing can be opened when circuit control unit needs repairing, circuit control unit is repaired, without by gas circuit portion
The influence for dividing so that maintenance is more easy；When air path part needs repairing, circuit control unit can integrally be removed,
So that the maintenance of air path part or replacing are more simple easy；Circuit control unit and air path part it is arranged apart be it is favourable, it
Will not interfere, circuit control unit will not be subject to the influence such as gas leakage or steam, thus service life to extend, and reliability increases
Plus.
In one embodiment, gas-chromatography includes cavity body structure with the air path part of ion mobility spectrometry equipment 100
The first cushion chamber and the second cushion chamber, the first cushion chamber and the second cushion chamber are respectively communicated with the negative mode discharge of transference tube
Gas interface and holotype discharge gas interface, gas interface and holotype discharge gas interface discharge are discharged to receive respectively from negative mode
Gas.As shown in Fig. 2 the discharge gas interface 105 of negative mode is taken out with membrane pump 121 again after being connected with the first cushion chamber 141
Gas interface is connected；The discharge gas interface 105 of holotype be connected with the second cushion chamber 142 after again with the suction interface of membrane pump 121
It is connected.Due to the first cushion chamber and the second cushion chamber, the air pulse of membrane pump will not be aligned, in the transference tube of negative mode
Portion's gas motion produces impulse disturbances so that migration tube signal is more stable.
In one embodiment of the present utility model, the air path part also includes the 3rd cushion chamber 143, the first cushion chamber
141 and the gas of the discharge of the second cushion chamber 142 at least partly flow into the 3rd cushion chamber 143, and the 3rd cushion chamber 143 is at least
Portion discharge is passed into transference tube as auxiliary sample introduction gas.As illustrated, the discharge gas of positive negative mode transference tube
A portion drains into that extraneous (the exhaust outlet amount chromatogram that should make peace greatly is entered at valve 123 from valve 123 after converging at threeway 122
Sample carrier gas flux is suitable), another part is divided into three tunnels and in flow after entering the 3rd cushion chamber 143 after being purified through molecular sieve 144
Migration gas interface 103 under the control of controller 118 respectively with positive and negative pattern transference tube is connected, formed migration gas and
The auxiliary sample introduction gas to form transference tube is connected with the auxiliary sample introduction gas interface 106 of middle terminal pad.
In the present embodiment, air path part can also include molecular sieve 144, be configured at the upstream of the 3rd cushion chamber 143 so that
From the first cushion chamber 141 and the gas of the discharge of the second cushion chamber 142 by flowing into the 3rd cushion chamber after the molecular sieve purification
143.Air path part can also include the first membrane pump 121a and the second membrane pump 121b, respectively positioned at the He of the first cushion chamber 141
The downstream of second cushion chamber 142 simultaneously connects the first cushion chamber 141 and the second cushion chamber 142 respectively.To reduce the first membrane pump 121a
The vibrations produced with the second membrane pump 121b work, the first membrane pump 121a and the second membrane pump 121b and cushioning base 120
It is connected by beam 125 and vibration-damping screw nail.
In the present embodiment, can by valve between the first cushion chamber 141, the second cushion chamber 142 and the 3rd cushion chamber 143
It is independent sealed.And the volume of each cushion chamber is preferably at least 5 times of volumes of transference tube 111.In one embodiment,
3rd buffering cavity volume is more than the first and second cushion chambers.Preferably, the volume of the 3rd cushion chamber is the first and second cushion chambers
More than 2 times of volume.
In the present embodiment, gas-chromatography includes that at least three is only with the air path part of ion mobility spectrometry equipment 100
Sealable cushion chamber is found, wherein the first and second cushion chambers (the first membrane pump 121a and the second membrane pump 121b) are respectively used to
Connection between positive and negative pattern discharge gas interface and air pump suction interface；3rd cushion chamber 143 is used for centralized collection through molecular sieve
Clean gas after purification.The outlet interface of the 3rd cushion chamber 143 regulates and controls the migration gas of positive and negative pattern using flow controller
With the flow that intermediate connector aids in sample introduction carrier gas.
According to embodiment of the present utility model, cushion chamber can be effectively reduced the first membrane pump 121a and the second membrane pump
The influence of 121b valves work time pulse qi of chong channel ascending adversely stream and instrument vibrations to migration tube internal gas flow so that gas-chromatography-Ion transfer
The baseline for composing output signal is more steady.Multiple cushion chambers cause that ion mobility spectrometry can carry out air-flow for different affinity substances again
Independent regulation and control, to realize that the optimizing detection to tie substance is analyzed.Migration gas and the carrier gas of auxiliary sample introduction use Recovery Purifying gas
The consumption of gas can be effectively reduced.
In embodiment of the present utility model, hidden pipe is equipped with cushioning base 120, for ion mobility spectrometry and gas phase color
The gas circuit connection of spectrum, hidden pipe end uses to connect soon and is connected with peripheral hardware (molecular sieve, air pump etc.), simplifies gas circuit connection, Er Qieyi
Seem clean and tidy, attractive in appearance inside device.Additionally, the installation that cushioning base 120 is additionally operable to migration tube 111, power supply and circuit etc. is fixed.
In the present embodiment, during instrument installation and debugging, directly first can be carried out on cushioning base 120, debugging to be installed again will be slow after terminating
Rush in base portion 120 and instrument single unit system housing 136；Also can be by cushioning base 120 and on cushioning base 120 during maintenance
Part integrally taken out from machine casing, greatly facilitate instrument peace reconcile maintenance.
In the utility model other embodiment, circuit control unit can include such as power module 127, mainboard 129, preceding
Amplification module 133, high-pressure modular 130, heating module 132, control module 132 etc., these modules can be arranged on cushioning base 120
On.The one side of mainboard 129 is used for connection migration pipe outgoing cable (Faraday plate signal extraction cable and migration tube high-voltage connection),
On the other hand it is additionally operable to provide rapid slot for preceding amplification module 133, high-pressure modular 130, control panel etc., is easy to consolidating for each module
Fixed, replacing and maintenance；Power module 127 is used to for exchange to be converted to direct current, and for the grade of mainboard 129 provides permanent steady operating voltage.
Preceding amplification module 133 is used to carry out the signal that Faraday plate is received shaping, filtering and amplifies；High-pressure modular 130 is used to be ion
Door provides saltus step pulse, for migration area and be grid-disk, that is, suppress to delete and between Faraday plate, there is provided consistent electric field etc.；Heated mould
Block 132 is used to heat gas-chromatography-ion mobility spectrometry work structure under the high temperature conditions；Control module 132 is used for
Realize to heating, instrument start and stop and the modification of other running parameters and control.
In one embodiment, gas-chromatography uses shielding shell screen with the circuit control unit of ion mobility spectrometry equipment 100
Cover.Shielding shell can comprising such as migration tube heating shielding shell, Faraday plate shielding cylinder, migration tube bulk shielding shell with
And high pressure and the preceding shielding shell put etc., the metallic shield of multilayer can effectively reduce extraneous and gas-chromatography-ion mobility spectrometry
Internal circuit can reduce the dry of outer bound pair circuit job stability to migration tube collection and the interference of output signal, the shielding of circuit
Disturb, migration tube module is worked long-term effectively.
As illustrated, AC supply voltage be converted into DC low-voltage through power module 127 after can be directly mainboard 129, control
Molding block 132, high-pressure modular 130 and preceding amplification module 133 provide permanent steady direct-current working volts.High-pressure modular 130 be used for be from
Cervical orifice of uterus provides saltus step pulse, for migration area and be that grid-disk (between suppressor and Faraday plate) provides consistent electric field, it is preceding to put mould
Block 133 is used to carry out the signal that Faraday plate is received shaping, filtering and amplifies；Control board is used to realize to heating and thermal insulation,
Instrument starts shutdown and the modification and control of other running parameters.Fixed column 128 is used to for mainboard 129 to be fixed on cushioning base
On 120.Mainboard 129 be used for for high pressure, it is preceding put, it is middle control etc. provide rapid slot (facilitating circuit I＆M)；It is used for simultaneously
Introducing migration pipe electrode and Faraday plate signal is delivered into preceding amplification module 133 high pressure needed for migration tube work carries out shaping filter
Ripple and amplification etc..Wherein, to avoid high pressure that signal and Faraday plate signal are interfered in transmitting procedure, mainboard
129 and the interelectrode high-voltage connection of migration tube and the lead between Faraday plate signal and mainboard 129 it is coaxial using shielding
Cable 135；Meanwhile, high-pressure modular 130, preceding amplification module 133 are also respectively adopted high-tension shielding cover 131, preceding put the screen of radome 134
Cover, migration tube is migrated tube shield aluminium skin 108 and surrounds, shielded cable and radome can efficiently reduce outer bound pair migration tube and
The electromagnetic interference of circuit, enables detector system to work long-term effectively.The cushion chamber that cushioning base 120 is provided can be effective
Eradicate a mental barrier the air-flow pulse of pump 121, and can realize the independent control of positive and negative pattern migration gas and discharge gas；On the other hand it is slow
Base portion is rushed also for the gas circuit connection for molecular sieve 124 and boundling capillary column-grade of ion mobility spectrometry 100 provides fast interface, it is convenient
The replacing of molecular sieve, gas circuit connection.At the same time, boundling capillary column-ion mobility spectrometry 100, molecular sieve 124, power module
127th, heating module 126, air pump 125 and mainboard 129 etc. are each attached on cushioning base 120 so that system can turn into one
Cushioning base 120 can directly be held out from tool housing 136 when individual integral module, maintenance and installation, or installation and debugging are completed
After reinstall in tool housing 136, this not only facilitates assembling of the detector in housing 136, maintenance and changes, while also making
Obtaining detector has good antidetonation, shield effectiveness.
In other embodiment of the present utility model, gas-chromatography can also be in Instrument shell 136 with ion mobility spectrometry equipment
Connect and be additionally arranged at gas port combination one-way seal valve, be provided with switch valve at the outlet port of instrument so that instrument is stopping
The automatic or manual sealing of whole gas circuit is capable of achieving in machine and transportation, to realize that the sealing to detector gas circuit is protected.For
Prevent instrument in long-time shutdown and transportation, clean detector gas circuit environment is subject to extraneous pollution and causes secondary
Purification gas circuit for a long time is needed when using, can by the way that valve 123 is closed after disconnect with the connection of rear end tracheae, and by combination valve 117
Primary and secondary head is disconnected, and formation is sealed and covers block check valve to be protected to detector air-channel system, shortens the double purification time.
Although some embodiments of this overall inventional idea have been shown and have illustrated, those of ordinary skill in the art will manage
Solution, in the case of the principle without departing substantially from this overall inventional idea and spirit, can make a change to these embodiments, and this practicality is new
The scope of type is limited with claim and their equivalent.
Claims (10)
1. a kind of gas-chromatography and ion mobility spectrometry equipment, including housing and be attached to housing and interconnection for defeated
Enter the gas containing sample sample introduction oral area, for gaseous substance separation boundling capillary column and the analysis for gaseous substance
Transference tube；Wherein, gas-chromatography also includes with ion mobility spectrometry equipment：
Air path part, is connected with transference tube, for providing gas to transference tube and receiving from transference tube discharge
Gas；
Cushioning base, can releasably be attached to housing and be capable of the vibration of isolation buffer base exterior, the Ion transfer
Pipe is arranged on cushioning base, and wherein air path part is installed in the built-in space of cushioning base.
2. gas-chromatography as claimed in claim 1 and ion mobility spectrometry equipment, also including circuit control unit, are arranged for controlling for
The operation of gas-chromatography and ion mobility spectrometry equipment, wherein the circuit control unit integral arrangement in cushioning base positioned at built-in
Part on space and arranged in the way of it can separate with air path part.
3. gas-chromatography as claimed in claim 1 and ion mobility spectrometry equipment, wherein the air path part includes cavity body structure
The first cushion chamber and the second cushion chamber, the first cushion chamber and the second cushion chamber are respectively communicated with the negative mode discharge of transference tube
Gas interface and holotype discharge gas interface, gas interface and holotype discharge gas interface discharge are discharged to receive respectively from negative mode
Gas.
4. gas-chromatography as claimed in claim 3 and ion mobility spectrometry equipment, wherein the air path part also includes that the 3rd delays
Rush chamber, the gas that the first cushion chamber and the second cushion chamber are discharged at least partly the 3rd cushion chamber of inflow, and the 3rd cushion chamber
At least partly exhaust is passed into transference tube as auxiliary sample introduction gas.
5. gas-chromatography as claimed in claim 4 and ion mobility spectrometry equipment, wherein the air path part also includes molecular sieve,
It is configured at the 3rd cushion chamber upstream so that from the first cushion chamber and the gas of the second cushion chamber discharge by the molecular sieve filtration
The 3rd cushion chamber is flowed into after purification.
6. gas-chromatography as claimed in claim 4 and ion mobility spectrometry equipment, wherein the air path part also include first every
Membrane pump and the second membrane pump, connect positioned at the first cushion chamber and the second cushion chamber downstream and respectively the first cushion chamber and second respectively
Cushion chamber.
7. gas-chromatography as claimed in claim 6 and ion mobility spectrometry equipment, wherein the first cushion chamber, the second cushion chamber and
Can be independent sealed by valve between three cushion chambers.
8. gas-chromatography as claimed in claim 3 and ion mobility spectrometry equipment, wherein the volume of the first and second cushion chambers is extremely
Few 5 times of Ion transfer pipe volumes.
9. gas-chromatography as claimed in claim 4 and ion mobility spectrometry equipment, wherein at least 5 times of the volume of the 3rd cushion chamber
Ion transfer pipe volume.
10. gas-chromatography as claimed in claim 2 and ion mobility spectrometry equipment, wherein circuit control unit use radome screen
Cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621346732.7U CN206258418U (en) | 2016-12-08 | 2016-12-08 | Gas-chromatography and ion mobility spectrometry equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621346732.7U CN206258418U (en) | 2016-12-08 | 2016-12-08 | Gas-chromatography and ion mobility spectrometry equipment |
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| CN206258418U true CN206258418U (en) | 2017-06-16 |
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| CN201621346732.7U Active CN206258418U (en) | 2016-12-08 | 2016-12-08 | Gas-chromatography and ion mobility spectrometry equipment |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106645472A (en) * | 2016-12-08 | 2017-05-10 | 同方威视技术股份有限公司 | Gas chromatography-ion mobility spectrometry device |
| WO2020048178A1 (en) * | 2018-09-06 | 2020-03-12 | 同方威视技术股份有限公司 | Pulse sampling-based ion mobility spectrometer and sniffing device |
-
2016
- 2016-12-08 CN CN201621346732.7U patent/CN206258418U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106645472A (en) * | 2016-12-08 | 2017-05-10 | 同方威视技术股份有限公司 | Gas chromatography-ion mobility spectrometry device |
| WO2020048178A1 (en) * | 2018-09-06 | 2020-03-12 | 同方威视技术股份有限公司 | Pulse sampling-based ion mobility spectrometer and sniffing device |
| US11346807B2 (en) | 2018-09-06 | 2022-05-31 | Nuctech Company Limited | Pulsed sampling-based ion mobility spectrometer and sniffer |
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