CN205542701U - Protonation enhancement mode low pressure vacuum ultraviolet electro -dissociator - Google Patents
Protonation enhancement mode low pressure vacuum ultraviolet electro -dissociator Download PDFInfo
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- CN205542701U CN205542701U CN201620226677.1U CN201620226677U CN205542701U CN 205542701 U CN205542701 U CN 205542701U CN 201620226677 U CN201620226677 U CN 201620226677U CN 205542701 U CN205542701 U CN 205542701U
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- protonation
- ionization
- reinforcing agent
- vacuum ultraviolet
- low pressure
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Abstract
The utility model relates to a protonation enhancement mode low pressure vacuum ultraviolet electro -dissociator, this is an improved generation photo ionization ware, it is through mixing supplementary protonation reinforcing material, makes the photo ionization ware can protonation ionization energy be greater than the organic matter of vacuum ultraviolet photon energy, if use dichloromethane to do that protonation reinforcing gas can make can protonation methyl alcohol (ionization energy 10.85eV) as the electro -dissociator of light source with krypton lamp (10.0eV and 10.6eV) to make the material that some ionization efficiency are low ( like acetaldehyde) protonation efficiency improve more than 20 times. Its design mainly includes protonation reinforcing agent storage bottle, and micro - peristaltic pump mixes the pond, has smooth flapper nozzle formula photo ionization ware and the electrodeless vacuum ultraviolet lamp of high flux. The utility model discloses the ionization scope of primary ionization ware can be expanded and ionization efficiency is strengthened.
Description
Technical field
The present invention relates to a kind of protonation enhancement mode low pressure vacuum ultraviolet-ionization device, this is a kind of modified model photo-ionisation device, and it is by mixing auxiliary matter
Sonization strengthens material, makes photo-ionisation device can protonate the ionization energy Organic substance more than vacuum ultraviolet photon energy, as used dichloromethane to protonate
Strengthen gas can enable to protonate methanol (ionization energy 10.85eV) with the krypton lamp (10.0eV and the 10.6eV) ionizer as light source, and make one
The protonation efficiency of the material (such as acetaldehyde) that a little ionizing efficiencies are low improves more than 20 times.
Background technology
Volatile organic matter (VOCs) participates in city photochemical fog and the generation of near-earth ozone, can be by a series of atmospheric physics chemical action
Form secondary organic aerosol, promote the formation of gray haze, and the carcinogen that the part (such as benzene homologues) in them has been well recognized as.It endangers day
Benefit receives publicity.In an atmosphere, the mean volume fraction of VOCs is 1 × 10-9(ppbv), content is the lowest, and it is certain difficult to there is its direct detection
Degree, additionally, during the discharge VOCs such as vehicle exhaust, substance combustion, plant leaf blade are breathed, rotten, the human body respiration of food storage, VOCs
Composition and quantity all change comparatively fast, it is therefore desirable to sensitive reliable online measuring technique detects.
Mass spectrum is that one of method the most accurate to analysis of the molecular structure can be used to unknown material carries out qualitative analysis and carries out main constituent in mixture quantitatively
Detection.Ion source is mass spectrographic key components, and the most frequently used ion source is EI (electron ionization) source, and it uses high energy electricity
Son bundle bombardment sample, so that sample occurs ionization to produce electronics and molecular ion.The ionizing efficiency in EI source is high, reproducible, and existing complete
Spectrum storehouse, is currently used widest ion source.The fragment peak produced yet with EI source is more, and the spectrum unscrambling for mixing unknown material is extremely difficult.
In order to solve this problem, create a series of soft ionization (soft ionization) method.
Proton-Transfer Reactions ion source is by primary response ion and testing sample molecule generation Proton-Transfer Reactions (proton transfer
Reaction) principle, so that proton on sample molecule band, is then detected by mass analyzer.Proton translocation ionization source has sensitivity
Height, the characteristic such as soft ionization, in Trace Organic Compounds context of detection, there is significant application value.
Vacuum ultraviolet ionized (VUV photoionization) is the mode of a kind of typical soft ionization.It absorbs VUV by analyte
The energy of photon ionizes, and vacuum ultraviolet ionized condition is the ionization energy that the energy of photon have to be larger than ionization material self, and ionizing efficiency
Being affected by analyte ionization cross section, the ionizing efficiency between different material differs greatly.
Chinese patent ZL201420638336.6 discloses a kind of nozzle-type photo-ionisation device having baffle plate, and it has higher ionizing efficiency, but
The species of its ionization are still limited by the energy of photon.Chinese patent CN101567297 discloses a kind of high-flux electrodeless vacuum ultraviolet light source, can be continuous
The vacuum-ultraviolet light of output 8-10.5eV.
Summary of the invention
In order to overcome the defect of above ionization source, this utility model provides one protonation to strengthen the vacuum ultraviolet ionized device of low pressure, and it is by mixing
Auxiliary protonation strengthens material, makes photo-ionisation device can protonate the ionization energy Organic substance more than vacuum ultraviolet photon energy.This utility model is used
Technical scheme be:
A kind of protonation vacuum ultraviolet ionized device of enhancement mode low pressure, including 1. protonations reinforcing agent storage bottle (Clear glass bottles and jars), built with
2. protonation reinforcing agent (such as dichloromethane etc.), by high pure nitrogen control bottle internal gas pressure at an atmospheric pressure, by the pipeline inserted in reagent, completes
The derivation of protonation reinforcing agent；3. trace peristaltic pump, protonates reinforcing agent by certain flow extraction 1；4. mixing pit, in order to will be compacted by trace
The protonation reinforcing agent of dynamic pump output is sufficiently mixed and inputs 5. tools baffle plate nozzle-type photo-ionisation device (ZL201420638336.6) with sample；6. high
Flux electrodeless vacuum ultraviolet light source (CN101567297), in order to ionize protonation reinforcing agent, thus by ionization protonation reinforcing agent produce molecule from
The sub proton translocation that passes through is by sample ionization, to reach the purpose of detection.Wherein, sample inputs and has the inlet air flow of baffle plate nozzle-type photo-ionisation device
Amount is respectively by two noticeable degree.
Accompanying drawing explanation
With embodiment, this utility model is further illustrated below in conjunction with the accompanying drawings.
Accompanying drawing is design diagram of the present utility model.
In figure: 1. protonation reinforcing agent storage bottle；2. protonation reinforcing agent；3. trace peristaltic pump；4. mixing pit；5. there is baffle plate spray
Mouth formula photo-ionisation device；6. high-flux electrodeless vacuum ultraviolet light source.
Detailed description of the invention
Protonation reinforcing agent storage bottle 1 protonates the standard atmosphere pressure that reinforcing agent provides at High Purity Nitrogen, by 3 trace peristaltic pump pumps, enters
Enter 4 mixing pits, and after being sufficiently mixed by the sample gas of certain flow input, enter 5 and there is baffle plate nozzle-type photo-ionisation device, by 6 high-flux electrodeless
Vacuum ultraviolet light source ionization protonation reinforcing agent, then the molecular ion passing through to be produced by ionization protonation reinforcing agent is electric by sample molecule by proton translocation
From.
Claims (6)
1. the protonation vacuum ultraviolet ionized device of enhancement mode low pressure, including: protonation reinforcing agent storage bottle, trace peristaltic pump, mixing pit, there is baffle plate nozzle-type photo-ionisation device and high-flux electrodeless vacuum UV lamp, wherein said trace peristaltic pump is by the protonation reinforcing agent in certain flow extraction protonation reinforcing agent storage bottle, described mixing pit has in baffle plate nozzle-type photo-ionisation device described in the protonation exported by trace peristaltic pump reinforcing agent and sample are sufficiently mixed and to be inputted, described high-flux electrodeless vacuum UV lamp protonates reinforcing agent belonging to ionizing.
A kind of protonation vacuum ultraviolet ionized device of enhancement mode low pressure the most according to claim 1, it is characterized in that: described protonation reinforcing agent storage bottle is brown glass or Clear glass bottles and jars, air inlet pipe is more than protonation reinforcing agent liquid level, and drain pipe is below protonation reinforcing agent liquid level.
A kind of protonation vacuum ultraviolet ionized device of enhancement mode low pressure the most according to claim 1, it is characterised in that: described trace peristaltic pump is the peristaltic pump of regulating flow quantity.
A kind of protonation vacuum ultraviolet ionized device of enhancement mode low pressure the most according to claim 1, it is characterised in that: described mixing pit is rustless steel container, and inner chamber is spherical, diameter 2-10 millimeter.
A kind of protonation vacuum ultraviolet ionized device of enhancement mode low pressure the most according to claim 1, it is characterised in that: described protonation reinforcing agent is dichloromethane solution.
A kind of protonation vacuum ultraviolet ionized device of enhancement mode low pressure the most according to claim 1, it is characterised in that: in described protonation reinforcing agent storage bottle, voltage stabilizing gas used is high pure nitrogen or synthesis of air.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620226677.1U CN205542701U (en) | 2016-03-23 | 2016-03-23 | Protonation enhancement mode low pressure vacuum ultraviolet electro -dissociator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620226677.1U CN205542701U (en) | 2016-03-23 | 2016-03-23 | Protonation enhancement mode low pressure vacuum ultraviolet electro -dissociator |
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| CN205542701U true CN205542701U (en) | 2016-08-31 |
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| CN201620226677.1U Expired - Fee Related CN205542701U (en) | 2016-03-23 | 2016-03-23 | Protonation enhancement mode low pressure vacuum ultraviolet electro -dissociator |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106373857A (en) * | 2016-10-28 | 2017-02-01 | 中国科学院生态环境研究中心 | Laser desorption ionization ion source assisted by protonated reinforcement matrix |
| CN106680263A (en) * | 2017-01-04 | 2017-05-17 | 苏州汉宣检测科技有限公司 | Sealing device for testing yield of secondary organic aerosol and use method of sealed device |
| CN107195529A (en) * | 2017-07-07 | 2017-09-22 | 中国科学院生态环境研究中心 | A kind of ioning method and its device based on excitation state proton-electron collaboration transfer reaction |
| CN107870194A (en) * | 2016-09-27 | 2018-04-03 | 中国科学院生态环境研究中心 | Substance assistant laser desorpted gas phase polarization induction proton translocation mass spectrum |
| CN107871650A (en) * | 2016-09-27 | 2018-04-03 | 中国科学院生态环境研究中心 | Excitation state dichloromethane protonating agent |
| CN108051496A (en) * | 2017-12-11 | 2018-05-18 | 中国科学院生态环境研究中心 | The method detected in real time using Excited state proton trans fer mass spectrograph progress water body Taste and odor compounds |
-
2016
- 2016-03-23 CN CN201620226677.1U patent/CN205542701U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107870194A (en) * | 2016-09-27 | 2018-04-03 | 中国科学院生态环境研究中心 | Substance assistant laser desorpted gas phase polarization induction proton translocation mass spectrum |
| CN107871650A (en) * | 2016-09-27 | 2018-04-03 | 中国科学院生态环境研究中心 | Excitation state dichloromethane protonating agent |
| CN107871650B (en) * | 2016-09-27 | 2020-08-11 | 中国科学院生态环境研究中心 | Excited methylene dichloride protonating agent |
| CN107870194B (en) * | 2016-09-27 | 2020-08-28 | 中国科学院生态环境研究中心 | Matrix-assisted laser desorption-gas phase polarization-induced proton transfer mass spectrometry |
| CN106373857A (en) * | 2016-10-28 | 2017-02-01 | 中国科学院生态环境研究中心 | Laser desorption ionization ion source assisted by protonated reinforcement matrix |
| CN106680263A (en) * | 2017-01-04 | 2017-05-17 | 苏州汉宣检测科技有限公司 | Sealing device for testing yield of secondary organic aerosol and use method of sealed device |
| CN107195529A (en) * | 2017-07-07 | 2017-09-22 | 中国科学院生态环境研究中心 | A kind of ioning method and its device based on excitation state proton-electron collaboration transfer reaction |
| CN107195529B (en) * | 2017-07-07 | 2024-01-26 | 中国科学院生态环境研究中心 | Ionization method and device based on excited proton electron cooperative transfer reaction |
| CN108051496A (en) * | 2017-12-11 | 2018-05-18 | 中国科学院生态环境研究中心 | The method detected in real time using Excited state proton trans fer mass spectrograph progress water body Taste and odor compounds |
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Legal Events
| Date | Code | Title | Description |
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| 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: 20160831 |