CN220455215U - Online analysis device for cigarette smoke - Google Patents
Online analysis device for cigarette smoke Download PDFInfo
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- CN220455215U CN220455215U CN202322032951.4U CN202322032951U CN220455215U CN 220455215 U CN220455215 U CN 220455215U CN 202322032951 U CN202322032951 U CN 202322032951U CN 220455215 U CN220455215 U CN 220455215U
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- Prior art keywords
- needle
- smoke
- needle head
- cigarette smoke
- nitrogen
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- 239000000779 smoke Substances 0.000 title claims abstract description 72
- 235000019504 cigarettes Nutrition 0.000 title claims abstract description 64
- 238000004458 analytical method Methods 0.000 title claims abstract description 33
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 85
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 42
- 238000002347 injection Methods 0.000 claims abstract description 16
- 239000007924 injection Substances 0.000 claims abstract description 16
- 239000007788 liquid Substances 0.000 claims abstract description 16
- 239000007921 spray Substances 0.000 claims abstract description 16
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 15
- 239000010959 steel Substances 0.000 claims abstract description 15
- 230000002572 peristaltic effect Effects 0.000 claims abstract description 13
- 239000000243 solution Substances 0.000 claims abstract description 13
- 238000004401 flow injection analysis Methods 0.000 claims abstract description 11
- 239000003153 chemical reaction reagent Substances 0.000 claims description 12
- 239000004814 polyurethane Substances 0.000 claims description 12
- 229920002635 polyurethane Polymers 0.000 claims description 11
- -1 polytetrafluoroethylene Polymers 0.000 claims description 10
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 10
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 10
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 9
- 238000004949 mass spectrometry Methods 0.000 claims description 7
- 238000001819 mass spectrum Methods 0.000 claims description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 2
- 239000000741 silica gel Substances 0.000 claims description 2
- 229910002027 silica gel Inorganic materials 0.000 claims description 2
- 239000000126 substance Substances 0.000 description 14
- 238000000034 method Methods 0.000 description 11
- 239000000203 mixture Substances 0.000 description 8
- 230000000391 smoking effect Effects 0.000 description 5
- 150000002500 ions Chemical class 0.000 description 4
- 230000032683 aging Effects 0.000 description 3
- 241000208125 Nicotiana Species 0.000 description 2
- 235000002637 Nicotiana tabacum Nutrition 0.000 description 2
- 238000012937 correction Methods 0.000 description 2
- 238000002290 gas chromatography-mass spectrometry Methods 0.000 description 2
- 238000004895 liquid chromatography mass spectrometry Methods 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 238000004435 EPR spectroscopy Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000711 cancerogenic effect Effects 0.000 description 1
- 231100000315 carcinogenic Toxicity 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000001212 derivatisation Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 230000003670 easy-to-clean Effects 0.000 description 1
- 238000002330 electrospray ionisation mass spectrometry Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000000796 flavoring agent Substances 0.000 description 1
- 235000019634 flavors Nutrition 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
Landscapes
- Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
- Electron Tubes For Measurement (AREA)
Abstract
The utility model provides an online cigarette smoke analysis device which comprises a smoke generation assembly, a solution injection assembly, a micro-droplet generation assembly, a nitrogen supply assembly and a mass spectrometer, wherein the micro-droplet generation assembly comprises a coaxial spray needle, a first needle head, a second needle head and a third needle head, the coaxial spray needle comprises three layers of sleeves which are sequentially arranged from inside to outside and are coaxial, and the three needles are respectively communicated with the three layers of sleeves; the smoke generating assembly comprises a cigarette holder, a peristaltic pump and a connecting hose for connecting an air outlet of the cigarette holder with the first needle head, wherein the connecting hose is arranged in a hose clamping groove of the peristaltic pump; the solution injection assembly comprises a flow injection pump and an injector, and a liquid outlet of the injector is connected with the second needle; the nitrogen supply assembly comprises a nitrogen steel bottle and a nitrogen supply pipeline, and the nitrogen steel bottle is connected with the third needle through the nitrogen supply pipeline; the high-voltage power supply of the mass spectrometer is connected with the third layer sleeve through a power line. The utility model can realize the on-line analysis of the cigarette smoke.
Description
Technical Field
The utility model belongs to the technical field of cigarette smoke analysis, and particularly relates to an online cigarette smoke analysis device.
Background
The cigarette Smoke is an extremely complex and constantly changing chemical substance mixture formed by incomplete combustion of tobacco, the cigarette Smoke is directly oriented to consumers, the cigarette Smoke is the most main factor for reflecting the quality level, the flavor characteristics and the health risk of cigarettes, the chemical component analysis is always an important content in the chemical research of the tobacco, and the main stream Smoke (MMS) is taken as a part directly sucked by a human body, contains various harmful and cancerogenic substances and can seriously harm the health of the human body.
At present, an off-line method is generally adopted for analyzing chemical components in cigarette smoke, namely: the flue gas is collected by using a Cambridge filter, a condenser tube and the like, and pretreatment operations such as extraction, concentration, chemical derivatization and the like are needed if necessary, and then the components are analyzed by using instruments such as gas chromatography-mass spectrometry (GC-MS for short), liquid chromatography-mass spectrometry (LC-MS for short), an electron paramagnetic resonance spectrometer (ESR for short) and the like. Although the off-line method has accurate qualitative and quantitative results and good reproducibility, the process is complex and takes a long time, and the aging of the smoke and the change of chemical components in the smoke can be caused, so that the instant chemical composition characteristics of the smoke contacted and absorbed by a smoker in the actual smoking process can not be accurately reflected. Therefore, how to design an on-line analysis device for cigarette smoke so as to realize real-time on-line analysis of the cigarette smoke, so that the analysis process is simple, the time consumption is short, and the on-line analysis device becomes a technical problem which needs to be solved by the technicians in the field.
Disclosure of Invention
The utility model aims to provide an online cigarette smoke analysis device which aims to solve the technical problems in the prior art.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
the device comprises a smoke generation assembly, a solution injection assembly, a micro-droplet generation assembly, a nitrogen supply assembly and a mass spectrometer, wherein the micro-droplet generation assembly comprises a coaxial spray needle, a first needle head, a second needle head and a third needle head, the coaxial spray needle comprises a first layer of sleeve, a second layer of sleeve and a third layer of sleeve which are sequentially arranged from inside to outside and are coaxial, the first needle head is communicated with the first layer of sleeve, the second needle head is communicated with the second layer of sleeve, and the third needle head is communicated with the third layer of sleeve; the smoke generating assembly comprises a smoke holder for holding a smoke, a peristaltic pump and a connecting hose, wherein the connecting hose is arranged in a hose clamping groove of the peristaltic pump, one end of the connecting hose is connected with an air outlet of the smoke holder, and the other end of the connecting hose is connected with the first needle; the solution injection assembly comprises a flow injection pump and an injector arranged on the flow injection pump, a liquid outlet of the injector is connected with the second needle head through a liquid injection pipeline, and electrospray reagent is stored in the injector; the nitrogen supply assembly comprises a nitrogen steel bottle and a nitrogen supply pipeline, and the nitrogen steel bottle is connected with the third needle head through the nitrogen supply pipeline; and the outlet of the coaxial spray needle is close to a mass spectrum vacuum interface of the mass spectrometer, and the high-voltage power supply of the mass spectrometer is connected with the third layer sleeve through a power line.
Preferably, the nitrogen supply pipeline comprises a polyurethane pipe and a second adapter, one end of the polyurethane pipe is connected with the nitrogen steel cylinder, the other end of the polyurethane pipe is connected with one end of the second adapter, and the other end of the second adapter is connected with the third needle.
Preferably, the liquid injection pipeline comprises a polytetrafluoroethylene tube, a luer external-rotation female connector and a luer external-rotation male connector, a liquid outlet of the syringe is connected with one end of the polytetrafluoroethylene tube through the luer external-rotation female connector, and the second needle is connected with the other end of the polytetrafluoroethylene tube through the luer external-rotation male connector.
Preferably, the connection hose is a silicone hose.
Preferably, an end of the connecting hose remote from the cigarette holder is connected to the first needle through a first adapter.
Preferably, the electrospray reagent is chromatographic grade methanol.
Preferably, the angle between the axis of the coaxial needle and the axis of the mass spectrometry vacuum interface is 30 ° to 45 °.
The utility model has the beneficial effects that:
when the cigarette smoke on-line analysis device is used, after the cigarettes clamped on the cigarette clamp holder are ignited, the peristaltic pump works to realize smoking of the cigarettes through the connecting hose, so that the cigarette smoke enters the first layer of sleeve through the connecting hose and the first needle head and is sprayed out from the outlet of the first layer of sleeve; meanwhile, the injector is pushed by the flow injection pump, and an electrospray reagent in the injector is injected into the second layer of sleeve through the liquid injection pipeline and the second needle head and sprayed out from the outlet of the second layer of sleeve, so that cigarette smoke reacts with the electrospray reagent; and nitrogen in the nitrogen steel bottle enters the third layer sleeve through the nitrogen supply pipeline and the third needle head, is sprayed out from the outlet of the third layer sleeve, so that the solution after the cigarette smoke reacts with the electrospray reagent forms micro-droplet spray, and as the high-voltage power supply of the mass spectrometer is connected with the third layer sleeve through the power line, the micro-droplet spray can be ionized by utilizing the high-voltage power supply of the mass spectrometer, and then the ionized micro-droplet spray enters the mass spectrometer through the mass spectrometer vacuum interface, and is analyzed by utilizing the mass spectrometer. Therefore, the utility model can better realize the on-line analysis of the cigarette smoke without pretreatment operation on the cigarette smoke as in the prior art, thereby effectively simplifying the analysis steps of the cigarette smoke, leading the analysis of the cigarette smoke to be simpler and faster, further avoiding the aging of the smoke and reflecting the real chemical composition of the cigarette smoke inhaled by a smoker in the actual smoking process more accurately.
Drawings
For a clearer description of embodiments of the present application or of the prior art, reference will be made briefly to the drawings which are required to be used in the embodiments, and a further detailed description of specific embodiments of the utility model will be given with reference to the accompanying drawings, in which
Fig. 1 is a schematic diagram of an online analysis device for cigarette smoke provided by an embodiment of the utility model;
fig. 2 is an enlarged view at a in fig. 1.
The reference numerals in the drawings:
1. the cigarette holder, 2, cigarette, 3, peristaltic pump, 4, connecting hose, 5, first adapter, 61, first layer sleeve, 6, coaxial needle; 62. the second layer sleeve, 63, the third layer sleeve, 7, the first needle, 8, a flow injection pump, 9, a syringe, 10, the second needle, 11, a polytetrafluoroethylene tube, 12, a luer external female connector, 13, a luer external male connector, 14, a third needle, 15, a polyurethane tube, 16, a second adapter, 17, a mass spectrometry vacuum interface, 18, a mass spectrometer, 19, a nitrogen steel cylinder, 20 and a power line.
Detailed Description
In order to make the technical solution of the present utility model better understood by those skilled in the art, the present solution will be described in further detail with reference to specific embodiments.
As shown in fig. 1 to 2, an embodiment of the present utility model provides an online cigarette smoke analysis device, which comprises a smoke generating assembly, a solution injection assembly, a micro-droplet generation assembly, a nitrogen gas supply assembly and a mass spectrometer 18, wherein the micro-droplet generation assembly comprises a coaxial needle 6, a first needle 7, a second needle 10 and a third needle 14, the coaxial needle comprises a first layer sleeve 61, a second layer sleeve 62 and a third layer sleeve 63 which are sequentially arranged from inside to outside and are coaxial, the first needle 7 is communicated with the first layer sleeve 61, the second needle 10 is communicated with the second layer sleeve 62, and the third needle 14 is communicated with the third layer sleeve 63; the smoke generating assembly comprises a smoke holder 1 for holding a cigarette 2, a peristaltic pump 3 and a connecting hose 4, wherein the connecting hose 4 is arranged in a hose clamping groove of the peristaltic pump, one end of the connecting hose 4 is connected with an air outlet of the smoke holder, and the other end of the connecting hose 4 is connected with the first needle 7; the solution injection assembly comprises a flow injection pump 8 and a syringe 9 arranged on the flow injection pump, wherein a liquid outlet of the syringe is connected with the second needle 10 through a liquid injection pipeline, and electrospray reagent is stored in the syringe; the nitrogen supply assembly comprises a nitrogen steel bottle 19 and a nitrogen supply pipeline, and the nitrogen steel bottle 19 is connected with the third needle 14 through the nitrogen supply pipeline; the outlet of the coaxial needle 6 is arranged close to the mass spectrometry vacuum interface 17 of the mass spectrometer, and the high-voltage power supply of the mass spectrometer is connected with the third layer sleeve 63 through the power line 20.
When the cigarette smoke on-line analysis device provided by the embodiment of the utility model is used, after the cigarettes 2 clamped on the cigarette clamp holder 1 are ignited, the peristaltic pump 3 works to realize smoking of the cigarettes through the connecting hose 4, so that cigarette smoke enters the first layer of sleeve through the connecting hose and the first needle head and is sprayed out from the outlet of the first layer of sleeve 61; meanwhile, the injector 9 is pushed by the flow injection pump 8, and the electrospray reagent in the injector is injected into the second layer sleeve 62 through the liquid injection pipeline and the second needle head and is sprayed out from the outlet of the second layer sleeve, so that the cigarette smoke reacts with the electrospray reagent; the nitrogen in the nitrogen steel bottle 19 enters the third layer sleeve 63 through the nitrogen supply pipeline and the third needle head, and is sprayed out from the outlet of the third layer sleeve, so that the solution after the cigarette smoke reacts with the electrospray reagent forms micro-droplet spray; and because the high-voltage power supply of the mass spectrometer is connected with the third layer sleeve through the power line 20, the micro-droplet spray can be ionized by using the voltage provided by the high-voltage power supply of the mass spectrometer, and then the ionized micro-droplet spray enters the mass spectrometer 18 through the mass spectrum vacuum interface 17 and is analyzed by the mass spectrometer. Therefore, the utility model can better realize the on-line analysis of the cigarette smoke without pretreatment operation on the cigarette smoke as in the prior art, thereby effectively simplifying the analysis steps of the cigarette smoke, leading the analysis process of the cigarette smoke to be simpler and faster, further avoiding the aging of the smoke and reflecting the real chemical composition of the cigarette smoke inhaled by a smoker in the actual smoking process more accurately.
Further, the nitrogen supply pipeline comprises a polyurethane pipe 15 and a second adapter 16, one end of the polyurethane pipe is connected with the nitrogen steel cylinder, the other end of the polyurethane pipe is connected with one end of the second adapter, and the other end of the second adapter is connected with the third needle. It will be appreciated that polyurethane tubes are simply referred to as PU tubes; the nitrogen supply pipeline can be provided with a switch valve so as to be convenient for opening and closing the nitrogen supply pipeline.
Specifically, the liquid injection pipeline comprises a polytetrafluoroethylene tube 11, a luer external-rotation female connector 12 and a luer external-rotation male connector 13, a liquid outlet of the syringe is connected with one end of the polytetrafluoroethylene tube through the luer external-rotation female connector, and the second needle is connected with the other end of the polytetrafluoroethylene tube through the luer external-rotation male connector.
Preferably, the connecting hose 4 is a silica gel hose.
In particular, the end of the connecting hose 4 remote from the holder is connected to the first needle 7 by means of a first adapter 5. It is understood that when the peristaltic pump works, the smoke generated by the ignited cigarettes can be continuously sucked through the connecting hose.
Preferably, the electrospray reagent is chromatographic grade methanol.
In particular, the angle between the axis of the coaxial needle 6 and the axis of the mass spectrometry vacuum interface 17 is 30 ° to 45 °.
Specifically, the straight line distance between the outlet end face of the coaxial needle 6 and the right end face of the mass spectrometry vacuum interface is 3cm to 5cm, that is, the length of the line between the center point of the outlet end face of the coaxial needle and the center point of the right end face of the mass spectrometry vacuum interface is 3cm to 5cm. Preferably, the mass spectrometer is an LTQ-Orbitrap Velos linear ion trap-electrostatic field orbit trap combined mass spectrometer, and accurate mass number correction is carried out by using standard correction liquid, so that the special high-resolution capability and multi-stage mass spectrum detection capability of the mass spectrometer can realize the accurate analysis of chemical components of main stream smoke of cigarettes; the nitrogen stored in the nitrogen steel cylinder 19 is high-purity nitrogen with the purity of more than or equal to 99.999 percent, and the pressure for transmitting the high-purity nitrogen can be 0.25MPa. It will be appreciated that the outlet of the first layer of sleeve, the outlet of the second layer of sleeve and the outlet end face of the third layer of sleeve are flush; the mass spectrometer, the cigarette holder, the peristaltic pump and the flow injection pump are all common components in the prior art, and are not repeated here, and when the cigarette smoke is analyzed, the working parameters of the components can be set according to the needs.
The method can carry out real-time online direct analysis on the main stream smoke of the cigarettes, can accurately detect the real chemical composition and dynamic change process of the smoke of the cigarettes, and is convenient for exploring the real harmful chemical composition entering the human body. The main components in the device, such as the coaxial spray needle, the first needle head, the second needle head, the third needle head, the cigarette holder and the like, are all made of stainless steel, are high-temperature resistant, can be repeatedly used, and are easy to clean, so that the residue of smoke is eliminated, and the accuracy of online analysis of the smoke of cigarettes can be ensured.
The utility model makes the ionized micro-droplet spray entering the mass spectrum vacuum interface, namely an electrospray ion source (ESI for short), compared with other ion sources, the chemical composition analysis of the gas phase and the particle phase of the cigarette smoke can be realized by utilizing the electrospray ion source, and the on-line analysis of the cigarette smoke based on the ESI-MS is better realized. Meanwhile, the utility model can also realize real-time, in-situ and on-line analysis of the cigarette smoke, and reflect the real chemical composition and dynamic change process of the cigarette smoke.
The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that these examples are only for illustrating the present utility model and are not intended to limit the scope of the present utility model, and that various changes and modifications may be made by one skilled in the art after reading the present disclosure, and the equivalent forms thereof fall within the scope of the appended claims.
Claims (7)
1. The cigarette smoke on-line analysis device is characterized by comprising a smoke generation assembly, a solution injection assembly, a micro-droplet generation assembly, a nitrogen supply assembly and a mass spectrometer, wherein the micro-droplet generation assembly comprises a coaxial spray needle, a first needle head, a second needle head and a third needle head, the coaxial spray needle comprises a first layer sleeve, a second layer sleeve and a third layer sleeve which are sequentially arranged from inside to outside and are coaxial, the first needle head is communicated with the first layer sleeve, the second needle head is communicated with the second layer sleeve, and the third needle head is communicated with the third layer sleeve; the smoke generating assembly comprises a smoke holder for holding a smoke, a peristaltic pump and a connecting hose, wherein the connecting hose is arranged in a hose clamping groove of the peristaltic pump, one end of the connecting hose is connected with an air outlet of the smoke holder, and the other end of the connecting hose is connected with the first needle; the solution injection assembly comprises a flow injection pump and an injector arranged on the flow injection pump, a liquid outlet of the injector is connected with the second needle head through a liquid injection pipeline, and electrospray reagent is stored in the injector; the nitrogen supply assembly comprises a nitrogen steel bottle and a nitrogen supply pipeline, and the nitrogen steel bottle is connected with the third needle head through the nitrogen supply pipeline; and the outlet of the coaxial spray needle is close to a mass spectrum vacuum interface of the mass spectrometer, and the high-voltage power supply of the mass spectrometer is connected with the third layer sleeve through a power line.
2. The online cigarette smoke analysis device according to claim 1, wherein the nitrogen supply pipeline comprises a polyurethane pipe and a second adapter, one end of the polyurethane pipe is connected with the nitrogen steel cylinder, the other end of the polyurethane pipe is connected with one end of the second adapter, and the other end of the second adapter is connected with the third needle.
3. The online cigarette smoke analysis device according to claim 1, wherein the liquid injection pipeline comprises a polytetrafluoroethylene tube, a luer external-rotation female connector and a luer external-rotation male connector, a liquid outlet of the syringe is connected with one end of the polytetrafluoroethylene tube through the luer external-rotation female connector, and the second needle is connected with the other end of the polytetrafluoroethylene tube through the luer external-rotation male connector.
4. The on-line analysis device for cigarette smoke according to claim 1, wherein the connection hose is a silica gel hose.
5. The on-line cigarette smoke analyzer of claim 1, wherein the end of the connecting hose remote from the holder is connected to the first needle through a first adapter.
6. The on-line cigarette smoke analysis device of claim 1, wherein the electrospray reagent is chromatographic grade methanol.
7. The device of claim 1, wherein the axis of the coaxial needle is at an angle of 30 ° to 45 ° to the axis of the mass spectrometry vacuum interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322032951.4U CN220455215U (en) | 2023-07-31 | 2023-07-31 | Online analysis device for cigarette smoke |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322032951.4U CN220455215U (en) | 2023-07-31 | 2023-07-31 | Online analysis device for cigarette smoke |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220455215U true CN220455215U (en) | 2024-02-06 |
Family
ID=89730097
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322032951.4U Active CN220455215U (en) | 2023-07-31 | 2023-07-31 | Online analysis device for cigarette smoke |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220455215U (en) |
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2023
- 2023-07-31 CN CN202322032951.4U patent/CN220455215U/en active Active
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