CN207882111U - A kind of system of on-line monitoring Atmospheric particulates reactive oxygen species - Google Patents
A kind of system of on-line monitoring Atmospheric particulates reactive oxygen species Download PDFInfo
- Publication number
- CN207882111U CN207882111U CN201820185720.3U CN201820185720U CN207882111U CN 207882111 U CN207882111 U CN 207882111U CN 201820185720 U CN201820185720 U CN 201820185720U CN 207882111 U CN207882111 U CN 207882111U
- Authority
- CN
- China
- Prior art keywords
- oxygen species
- condensation
- reactive oxygen
- atmospheric particulates
- chamber
- 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.)
- Active
Links
Landscapes
- Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)
Abstract
A kind of system of on-line monitoring Atmospheric particulates reactive oxygen species disclosed by the utility model, the system include sampling device, condensation growth chamber, pure water feedway, electrostatic pump, wet cyclone, PFN solution supplying devices and fluorescence detector；The sampling device, condensation increase chamber, wet cyclone and fluorescence detector and are sequentially connected, and the pure water feedway increases chamber with the condensation by electrostatic pump and connect, and the PFN solution supplying devices are connect by electrostatic pump with wet cyclone.The utility model realizes concentration that is real-time, comprehensive, accurately measuring reactive oxygen species in Atmospheric particulates, and scientific basis is provided for accurate evaluation air quality.
Description
Technical field
The utility model belongs to Atmospheric Chemistry and air environmental pollution analytical equipment field, more particularly to a kind of on-line monitoring
The system of Atmospheric particulates reactive oxygen species.
Background technology
Reactive oxygen species refer to oxygen radical related with oxygen metabolism and the existing tool of non-free radical form in organism
There is the intermediate product of high activity, include mainly the free radicals such as hydroxyl radical free radical, NO free radical, perhydroxyl radical free radical, peroxide is negative
Ion, hypochlorite plasma and hydrogen peroxide, organic peroxide equimolecular.Reactive oxygen species in atmospheric environment, with
The form of gaseous state and particulate form simultaneously deposits simultaneously generally existing.Its gaseous active oxygen species, due to highly dissoluble and the expansion of strong molecule
Dissipate ability, into human body after largely adsorbed by respiratory tract, it is smaller to the harm of health；Its particulate form active oxygen object
Matter can enter human lung using particulate matter as transport vehicle, larger to the harm of health.Human body spontaneous generates appropriate
Reactive oxygen species play an important role in the vital movements such as gene expression and immune response, required for human body；Excess activity oxygen
Substance then easy initiated oxidation stress, lead to cell damage or death, seriously affect health.To sum up, air active oxygen
Substance has accurate evaluation air quality important reference significance, therefore to air reactive oxygen species, especially Atmospheric particulates
In active oxygen carry out effectively detection be very necessary.
The detection of reactive oxygen species in Atmospheric particulates at present mainly uses offline mode, including chemoluminescence method, electricity
Sub- paramagnetic resonance method and spectrophotometry etc..Since Atmospheric particulates reactive oxygen species have the characteristics that short life and activity are high,
Therefore the offline mode that analysis time relatively lags behind possibly can not accurately obtain its actual concentration.Fluorescence probe method is because with fast
The advantages that fast, accurate, sensitive, is widely used in the on-line monitoring of reactive oxygen species.Wherein, 2,7- dichlorofluoresceins（2,7-
Dichlorofluorescin, abbreviation DCGH）Sonde method is current more common on-line monitoring technique, but there are versatilities
The disadvantage of difference, therefore a kind of effective and general on-line monitoring technique is very necessary.
Utility model content
The purpose of this utility model is to provide a kind of systems of on-line monitoring Atmospheric particulates reactive oxygen species, realize real
When, comprehensively, accurately measure the concentration of reactive oxygen species in Atmospheric particulates, be for the oxidisability of accurate evaluation Atmospheric particulates
Scientific basis is provided to air quality.
To achieve the goals above, the technical solution of the utility model is as follows：
A kind of system of on-line monitoring Atmospheric particulates reactive oxygen species, including sampling device, condensation increase chamber, pure water supplies
To device, electrostatic pump, wet cyclone, PFN solution（Promote fluorescence nitroxide（Profluorescent nitroxide, letter
Claim PFN）Feedway and fluorescence detector；The sampling device, condensation increase chamber, wet cyclone and fluorescence inspection
It surveys device to be sequentially connected, the pure water feedway increases chamber with the condensation by electrostatic pump and connect, the PFN solution supply dress
It sets and is connect with wet cyclone by electrostatic pump.
A bypass in parallel with condensation growth chamber is also accessed between the sampling device and wet cyclone, it should
Bypass both ends are equipped with valve.
A method of on-line monitoring Atmospheric particulates reactive oxygen species include the following steps：
S1. the Atmospheric particulates of certain grain size and gas are sent into condensation by sampling device simultaneously and increase chamber, electrostatic pump
Increase in chamber from small flow pure water to condensation is constantly pumped in pure water feedway, so that condensation is increased chamber and be in supersaturated shape
State allows Atmospheric particulates moisture absorption in condensation increases chamber to increase；
S2. the Atmospheric particulates increased in chamber after moisture absorption growth in condensation enter wet cyclone, meanwhile, electrostatic
PFN solution in PFN solution supplying devices is imported wet cyclone by pump, and wet cyclone makes PFN solution be formed
Standing vortex, the moisture absorption into wet cyclone increase reactive oxygen species and PFN solution reactions in Atmospheric particulates；
S3. reaction product enters fluorescence detector after the completion of reacting, and is detected by fluorescence detector.
The Atmospheric particulates of certain grain size are obtained by whirlwind cutter from air air-flow.
After adopting the above scheme, the utility model has the beneficial effect that：The utility model combines condensation to increase chamber and wet spin
Wind separator completes the trapping of reactive oxygen species in Atmospheric particulates；Using highly sensitive, high universalizable PFN probes as inspection
It surveys device and realizes that reactive oxygen species are real-time in Atmospheric particulates, comprehensively and accurately monitor on-line, be accurate evaluation Atmospheric particulates
Oxidisability or even air quality provide scientific basis.
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Description of the drawings
Fig. 1 is the system structure schematic diagram of the utility model.
Label declaration
Sampling device 1, condensation increase chamber 2, pure water feedway 3, electrostatic pump 4, wet cyclone 5, the confession of PFN solution
To device 6, fluorescence detector 7, bypass 8, valve 81, vacuum extractor 9.
Specific implementation mode
As shown in Figure 1, a kind of system for on-line monitoring Atmospheric particulates reactive oxygen species that the present embodiment discloses, including into
Sampling device 1, condensation increase chamber 2, pure water feedway 3, electrostatic pump 4, wet cyclone 5, PFN solution supplying devices 6 with
And fluorescence detector 7；The sampling device 1, condensation increase chamber 2, wet cyclone 5 and fluorescence detector 7 and connect successively
It connects, the pure water feedway 3 increases chamber 2 with the condensation by electrostatic pump 4 and connect, and the PFN solution supplying devices 6 pass through
Electrostatic pump 4 is connect with wet cyclone 5, and electrostatic pump 4 is multi-channel pump, therefore wet cyclone 5 is also provided with and passes through
Electrostatic pump 4 is connect with fluorescence detector 7.Wet cyclone 5 is also vacuumized by vacuum extractor 9.
A bypass 8 in parallel with condensation growth chamber 2 is also accessed between sampling device 1 and wet cyclone 5, it should
It bypasses 8 both ends and is equipped with valve 81.
Fig. 1 is referred to, using a kind of above-mentioned air that the system of on-line monitoring Atmospheric particulates reactive oxygen species is implemented
The monitoring method of grain object reactive oxygen species, includes the following steps：
S1. the Atmospheric particulates of certain grain size and gas are sent into condensation by sampling device 1 simultaneously and increase chamber 2, electrostatic
Pump 4 increases from small flow pure water to condensation is constantly pumped in pure water feedway 3 in chamber 2, so that condensation is increased chamber 2 and is in satiety
And state, it allows Atmospheric particulates condensation to increase moisture absorption in chamber 2 and increases；
S2. the Atmospheric particulates increased in chamber 2 after moisture absorption growth in condensation enter wet cyclone 5, meanwhile, it is quiet
PFN solution in PFN solution supplying devices 6 is imported wet cyclone 5 by electric pump 4, and wet cyclone 5 keeps PFN molten
Liquid forms standing vortex, into the reactive oxygen species and PFN solution in the Atmospheric particulates after the moisture absorption growth of wet cyclone 5
Reaction；
S3. reaction product enters fluorescence detector 7 after the completion of reacting, and is detected by fluorescence detector 7.
The Atmospheric particulates of above-mentioned certain grain size are obtained by whirlwind cutter from air air-flow.
Atmospheric particulates oxidisability detection process has the characteristics that：
1）Condensation increases the effect of chamber 2：Certain particles things make because supersaturated vapor is condensate in surface particles
Grain object grain size increases, and contributes to the trapping of certain particles things.
2）The effect of wet cyclone 5：Gas and particulate matter are simultaneously stored in atmospheric environment.By whirlwind cutter
Afterwards, into sampling device 1 be gas and certain grain size particulate matter, the effect of wet cyclone 5 be realize gas and
The online separation of certain particles things.
3) effect of PFN solution：Reactive oxygen species in air itself do not have fluorescent absorption, cannot directly be examined by fluorescence
Device 7 is surveyed to be detected.But reactive oxygen species can quickly react with PFN solution, generate the reaction product with fluorescent absorption,
By response signal of the reaction product on fluorescence detector 7, the concentration of reactive oxygen species can be obtained indirectly.And select PFN molten
Liquid is reacted with reactive oxygen species, other than producing the substance with fluorescent absorption, also as glimmering with having for PFN solution reactions
The product of light absorption has the characteristics that high sensitivity, and PFN solution can generally be reacted with the reactive oxygen species in particulate matter（Air
Reactive oxygen species in particulate matter, as described in " technical background ", there are many, including hydroxyl radical free radical, NO free radical, perhydroxyl radical
The free radicals such as free radical cross negative oxygen ion, hypochlorite plasma and hydrogen peroxide, organic peroxide equimolecular）.
4) particle size to be measured determines by whirlwind cutter, particle size after increasing chamber into condensation
Increase, though grain size changes, it acts on effective trapping primarily to particulate matter, and system is surveyed by fluorescence detector
Reactive oxygen species in the particulate matter of amount should still depend on the grain size that whirlwind cutter obtains.
The rush fluorescence nitroxide that the utility model uses（Profluorescent nitroxide, PFN）Technology has spirit
Sensitivity is high and it is big to provide a kind of on-line monitoring in conjunction with condensation growth chamber 2 and wet cyclone 5 for versatile feature
The effective ways of reactive oxygen species in aerated particle object.The utility model is the oxidisability or even air of accurate evaluation Atmospheric particulates
Quality provides scientific basis.
The equivalent variations that all mentalities of designing according to this case are done, each fall within the protection domain of this case.
Claims (2)
1. a kind of system of on-line monitoring Atmospheric particulates reactive oxygen species, it is characterised in that：Increase including sampling device, condensation
Chamber, pure water feedway, electrostatic pump, wet cyclone, PFN solution supplying devices and fluorescence detector；The sample introduction
Device, condensation increase chamber, wet cyclone and fluorescence detector and are sequentially connected, and the pure water feedway passes through electrostatic
Pump increases chamber with the condensation and connect, and the PFN solution supplying devices are connect by electrostatic pump with wet cyclone.
2. a kind of system of on-line monitoring Atmospheric particulates reactive oxygen species as described in claim 1, it is characterised in that：Institute
It states and also accesses a bypass in parallel with condensation growth chamber between sampling device and wet cyclone, which is all provided with
There is valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820185720.3U CN207882111U (en) | 2018-02-02 | 2018-02-02 | A kind of system of on-line monitoring Atmospheric particulates reactive oxygen species |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820185720.3U CN207882111U (en) | 2018-02-02 | 2018-02-02 | A kind of system of on-line monitoring Atmospheric particulates reactive oxygen species |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207882111U true CN207882111U (en) | 2018-09-18 |
Family
ID=63509662
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820185720.3U Active CN207882111U (en) | 2018-02-02 | 2018-02-02 | A kind of system of on-line monitoring Atmospheric particulates reactive oxygen species |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207882111U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108051343A (en) * | 2018-02-02 | 2018-05-18 | 睿科仪器（厦门）有限公司 | A kind of system and method for monitoring Atmospheric particulates reactive oxygen species on-line |
-
2018
- 2018-02-02 CN CN201820185720.3U patent/CN207882111U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108051343A (en) * | 2018-02-02 | 2018-05-18 | 睿科仪器（厦门）有限公司 | A kind of system and method for monitoring Atmospheric particulates reactive oxygen species on-line |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108051343A (en) | A kind of system and method for monitoring Atmospheric particulates reactive oxygen species on-line | |
| CN106769978B (en) | Fermentation tank tail gas in-line analyzer | |
| CN102778499B (en) | Gas detection method | |
| CN107389387A (en) | Portable trace mercury analyzer | |
| Qian et al. | A novel multisensor detection system design for low concentrations of volatile organic compounds | |
| CN207882111U (en) | A kind of system of on-line monitoring Atmospheric particulates reactive oxygen species | |
| CN103424383A (en) | On-line monitor for reactive oxygen species in the atmosphere | |
| CN108088889B (en) | The device and method of negative ion mode ion mobility spectrometry on-line checking formaldehyde | |
| CN201903529U (en) | Continuous online ionic migration spectrum monitoring instrument for poisonous gases | |
| CN117705662B (en) | Method for calculating mass concentration of humidity-compensated particulate matter monitoring equipment | |
| CN108562633A (en) | A kind of optical electro-chemistry sensor and its detection method for detecting sulfadimethoxine | |
| CN109884002A (en) | One kind measuring atmosphere OH and HO for chemical ionization mass spectrometry2The device and method of free radical | |
| CN208171949U (en) | Electric nasus system | |
| An et al. | Recent progress in online detection methods of bioaerosols | |
| CN100412543C (en) | Gas detection device and method based on field ionization effect | |
| CN109900776A (en) | The device of HCN and application in a kind of highly sensitive on-line checking expiratory air | |
| CN113607792A (en) | Rapid blood fat detector and detection method | |
| CN107219283B (en) | A kind of method of photic electrochemical gaging glutathione | |
| CN107037093A (en) | A kind of tyrosinase electrochemica biological sensor and its preparation, application process | |
| CN211576948U (en) | Automatic comprehensive smoke and dust tester | |
| CN205861406U (en) | Full automatic atmospheric keeps sample device | |
| CN113504340A (en) | Nitrogen oxide gas detection system | |
| CN210719858U (en) | High-altitude online monitoring and sampling system for submicron and nanoscale particles in atmosphere | |
| KR20150012535A (en) | Carbon particle sampling filter pack and method for measuring carbon mass using the same | |
| CN209231263U (en) | A kind of exceeded alarming sensor of VOC with remote maintenance functions |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20211018 Address after: 361000 5-6f, No. 176, Xinfeng Road, Huizhi space, torch high tech Zone, Xiamen, Fujian Patentee after: Ruike Group (Xiamen) Co.,Ltd. Address before: 361000 room n206a, Weiye building, entrepreneurship Park, torch high tech Zone, Xiamen, Fujian Patentee before: REEKO INSTRUMENT (XIAMEN) Co.,Ltd. |