CN108444983A - A kind of torch pipe for measuring volatile materials - Google Patents
A kind of torch pipe for measuring volatile materials Download PDFInfo
- Publication number
- CN108444983A CN108444983A CN201810237448.3A CN201810237448A CN108444983A CN 108444983 A CN108444983 A CN 108444983A CN 201810237448 A CN201810237448 A CN 201810237448A CN 108444983 A CN108444983 A CN 108444983A
- Authority
- CN
- China
- Prior art keywords
- tracheae
- central tube
- volatile materials
- cooling
- auxiliary
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000000463 material Substances 0.000 title claims abstract description 11
- 238000001816 cooling Methods 0.000 claims abstract description 17
- 238000010438 heat treatment Methods 0.000 claims abstract description 14
- 238000001514 detection method Methods 0.000 claims abstract description 13
- 239000012159 carrier gas Substances 0.000 claims abstract description 8
- 239000007789 gas Substances 0.000 claims abstract description 7
- 239000000470 constituent Substances 0.000 abstract description 5
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 230000001939 inductive effect Effects 0.000 description 3
- 241000486406 Trachea Species 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000002663 nebulization Methods 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 210000003437 trachea Anatomy 0.000 description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- -1 Siloxanes Chemical class 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 238000000889 atomisation Methods 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 239000000112 cooling gas Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- NEXSMEBSBIABKL-UHFFFAOYSA-N hexamethyldisilane Chemical compound C[Si](C)(C)[Si](C)(C)C NEXSMEBSBIABKL-UHFFFAOYSA-N 0.000 description 1
- 238000009616 inductively coupled plasma Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000006193 liquid solution Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- CZDYPVPMEAXLPK-UHFFFAOYSA-N tetramethylsilane Chemical compound C[Si](C)(C)C CZDYPVPMEAXLPK-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/62—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
- G01N21/71—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light thermally excited
- G01N21/73—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light thermally excited using plasma burners or torches
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/62—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating the ionisation of gases, e.g. aerosols; by investigating electric discharges, e.g. emission of cathode
- G01N27/626—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating the ionisation of gases, e.g. aerosols; by investigating electric discharges, e.g. emission of cathode using heat to ionise a gas
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D23/00—Control of temperature
- G05D23/185—Control of temperature with auxiliary non-electric power
Landscapes
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Pathology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Plasma & Fusion (AREA)
- Power Engineering (AREA)
- Automation & Control Theory (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
Abstract
The invention discloses a kind of torch pipes for measuring volatile materials, including coaxial central tube, auxiliary tracheae and cooling tracheae, a part for central tube is placed in heating mantle, central tube one end open is clogged with rubber stopper, central tube open end is equipped with carrier gas inlet, tracheae is assisted to be equipped with auxiliary gas entrance, cooling tracheae is equipped with cooling air inlet.When the beneficial effects of the invention are as follows measuring volatile materials, detection signal will not change because determinand volatility is different, to obtain constituent content mensure result in reliable volatile materials.
Description
Technical field
The invention belongs to chemical analysis instrument technical fields, are related to a kind of torch pipe with controllable temperature heating device.
Background technology
Torch pipe is to be assemblied in inductive coupling plasma emission spectrograph (ICP-AES) in a kind of component of laboratory apparatus
Or in icp ms (ICP-MS), for analyzing the constituent content in testing liquid solution.Existing torch
Pipe need to be used cooperatively with atomizer, be primarily adapted for use in the detection of constituent content in aqueous solution.
Because atomizer nebulization efficiency can be designed by the volatile influence of determinand when using traditional torch pipe and atomizer
When detecting the constituent content in volatile liquid, detection signal can generate prodigious variation with determinand volatility.
Therefore, it is necessary to design a set of torch pipe not influenced by determinand nebulization efficiency and atomizer assembly.
Invention content
The purpose of the present invention is to provide a kind of torch pipes for measuring volatile materials, substitute traditional torch pipe and atomization
Device Combination Design.When the beneficial effects of the invention are as follows measuring volatile materials, detection signal will not be different because of determinand volatility
And change, to obtain constituent content mensure result in reliable volatile materials.
The technical solution adopted in the present invention be include coaxial central tube, auxiliary tracheae and cooling tracheae, central tube
A part is placed in the heating mantle of controllable temperature, the injection port rubber stopper seal of central tube, and central tube is equipped with carrier gas inlet, auxiliary
Tracheae is equipped with auxiliary gas entrance, and cooling tracheae is equipped with cooling air inlet.
Further, detection of the quarter bend for volatile organosilicon in gasoline.
Further, ranging from 60 DEG C -350 DEG C of heating mantle heats temperature-controllable.
Description of the drawings
Fig. 1 is quarter bend structural schematic diagram of the present invention.
In figure, 1. central tubes, 2. auxiliary tracheaes, 3. cooling tracheaes, 4. heating mantles, 5. rubber stoppers, 6. carrier gas inlets, 7. is auxiliary
Help gas entrance, 8. cooling air inlets.
Specific implementation mode
The present invention is described in detail With reference to embodiment.
The quarter bend of the present invention is as shown in Figure 1, including coaxial central tube 1, assist tracheae 2 and cooling tracheae 3, central tube 1
A part be placed in heating mantle 4,1 one end open rubber stopper 5 of central tube clogs, 1 open end of central tube be equipped with carrier gas inlet
6, auxiliary tracheae 2 is equipped with auxiliary gas entrance 7, and cooling tracheae 3 is equipped with cooling air inlet 8.
Apparatus of the present invention can be used for volatile organosilicon in gasoline (such as tetramethylsilane, hexamethyldisilane, hexamethyl two
Siloxanes etc.) detection, 4 heating temperature of heating mantle is 240 DEG C, in use, using 50uL sample introduction needles, draws gasoline sample
10uL, the oral area sample introduction clogged by rubber stopper 5.Sample is after the heating of 4 sections of heating mantle, the carrier gas that is inputted from carrier gas inlet 6
It brings into, the auxiliary gas ignition plasma that auxiliary gas entrance 7 is passed through, the cooling gas that cooling air inlet 8 introduces is tangentially square
To plasma is blown off 3 inner wall of cooling tracheae, cooling tracheae 3 is protected not to be burned out, and is generated at 1 center of central tube low
Pressure channel is conducive to sample introduction, input mode：Under the heating of heating mantle 4, volatile samples are heated to 240 DEG C, in blowing for carrier gas
It sweeps down, is directly entered in central tube 1.Using inductive coupling plasma emission spectrograph (ICP-AES) or inductive coupling etc. from
Daughter mass spectrograph (ICP-MS) detects volatile element silicon.
1ppm, measurement result silicone content, detection limit can be better than in Accurate Determining gasoline using quarter bend device of the present invention
There is comparativity with existing detection technique, and is better than existing detection technique in theory, it is excellent to the detection order of accuarcy of particular sample
In existing detection technique.Note：" existing detection technique " refers to GB/T 33465-2016《Inductively coupled plasma emission spectrography
Measure the chlorine and silicon in gasoline》.
The above is only the better embodiment to the present invention, not makees limit in any form to the present invention
System, every any simple modification that embodiment of above is made according to the technical essence of the invention, equivalent variations and modification,
Belong in the range of technical solution of the present invention.
Claims (3)
1. a kind of torch pipe for measuring volatile materials, it is characterised in that：Including coaxial central tube, auxiliary tracheae and cooling
A part for tracheae, central tube is placed in the heating mantle of controllable temperature, and central tube one end open is clogged with rubber stopper, center tube opening
End is equipped with carrier gas inlet, and auxiliary tracheae is equipped with auxiliary gas entrance, and cooling tracheae is equipped with cooling air inlet.
2. according to a kind of torch pipe for measuring volatile materials described in claim 1, it is characterised in that：The quarter bend is used for vapour
The detection of volatile organosilicon in oil.
3. according to a kind of torch pipe for measuring volatile materials described in claim 1, it is characterised in that：The heating mantle heats
Temperature range is 60 DEG C -350 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810237448.3A CN108444983A (en) | 2018-03-22 | 2018-03-22 | A kind of torch pipe for measuring volatile materials |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810237448.3A CN108444983A (en) | 2018-03-22 | 2018-03-22 | A kind of torch pipe for measuring volatile materials |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108444983A true CN108444983A (en) | 2018-08-24 |
Family
ID=63196347
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810237448.3A Pending CN108444983A (en) | 2018-03-22 | 2018-03-22 | A kind of torch pipe for measuring volatile materials |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108444983A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114149827A (en) * | 2021-12-22 | 2022-03-08 | 中国石油化工股份有限公司 | Gasoline processing flow for reducing silicon content |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0831371A (en) * | 1994-07-15 | 1996-02-02 | Shimadzu Corp | Inductively coupled plasma/mass-spectrometer |
| JPH10283980A (en) * | 1997-04-08 | 1998-10-23 | Shimadzu Corp | Icp mass spectrometer |
| US20020182746A1 (en) * | 2001-05-31 | 2002-12-05 | Zoltan Mester | Method and device for sample introduction of volatile analytes |
| CN1669368A (en) * | 2002-05-21 | 2005-09-14 | 美国瓦里安澳大利亚有限公司 | Plasma torch for microwave induced plasmas |
| CN101726482A (en) * | 2009-12-24 | 2010-06-09 | 江苏天瑞仪器股份有限公司 | Method for detecting content of elements in oil with inductively coupled plasma (ICP) spectrometer |
| CN103792131A (en) * | 2014-01-23 | 2014-05-14 | 天津师范大学 | Curie-point pyrolyser of volatile matter generated by element in element determination |
| CN208013087U (en) * | 2018-03-22 | 2018-10-26 | 山东出入境检验检疫局检验检疫技术中心 | A kind of torch pipe for measuring volatile materials |
-
2018
- 2018-03-22 CN CN201810237448.3A patent/CN108444983A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0831371A (en) * | 1994-07-15 | 1996-02-02 | Shimadzu Corp | Inductively coupled plasma/mass-spectrometer |
| JPH10283980A (en) * | 1997-04-08 | 1998-10-23 | Shimadzu Corp | Icp mass spectrometer |
| US20020182746A1 (en) * | 2001-05-31 | 2002-12-05 | Zoltan Mester | Method and device for sample introduction of volatile analytes |
| CN1669368A (en) * | 2002-05-21 | 2005-09-14 | 美国瓦里安澳大利亚有限公司 | Plasma torch for microwave induced plasmas |
| CN101726482A (en) * | 2009-12-24 | 2010-06-09 | 江苏天瑞仪器股份有限公司 | Method for detecting content of elements in oil with inductively coupled plasma (ICP) spectrometer |
| CN103792131A (en) * | 2014-01-23 | 2014-05-14 | 天津师范大学 | Curie-point pyrolyser of volatile matter generated by element in element determination |
| CN208013087U (en) * | 2018-03-22 | 2018-10-26 | 山东出入境检验检疫局检验检疫技术中心 | A kind of torch pipe for measuring volatile materials |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114149827A (en) * | 2021-12-22 | 2022-03-08 | 中国石油化工股份有限公司 | Gasoline processing flow for reducing silicon content |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Deng Ke Inventor after: Zhang Qingjian Inventor after: Xu Heng Inventor after: Liu Li Inventor after: Huang Jie Inventor before: Deng Ke Inventor before: Zhang Qingjian Inventor before: Xu Heng Inventor before: Liu Li Inventor before: Huang Jie |