CN103323319A - Enriching and detecting equipment for particles - Google Patents
Enriching and detecting equipment for particles Download PDFInfo
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- CN103323319A CN103323319A CN2012104833975A CN201210483397A CN103323319A CN 103323319 A CN103323319 A CN 103323319A CN 2012104833975 A CN2012104833975 A CN 2012104833975A CN 201210483397 A CN201210483397 A CN 201210483397A CN 103323319 A CN103323319 A CN 103323319A
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Abstract
The invention discloses enriching and detecting equipment for particles. The equipment comprises a sampling chamber body; the sampling chamber body comprises a sampling chamber; a sampling filter membrane is arranged in the sampling chamber, and is used for dividing the sampling chamber into an air inlet chamber and an air outlet chamber; the air inlet chamber is provided with an air inlet, and the air outlet chamber is provided with an air outlet; a detecting device is also arranged in the sampling chamber; a detecting window of the detecting device is communicated with the are inlet chamber and/or the air outlet chamber, so that the particles enriched on the sampling filter membrane are detected and analyzed. According to the enriching and detecting equipment for particles of the invention embodiment, by arranging the sampling filter membrane and the detecting device in the sampling chamber, the enrichment and detection of the particles can be realized simultaneously; problems that particle sampling and enriching are separated, and real-time detection is impossible are solved; errors caused by the movement of the sampling filter membrane are eliminated; and the equipment can be applied in on-line monitoring of particles in gas.
Description
Technical field
The present invention relates to particle and detect the monitoring field, more specifically, relate to a kind of enrichment and checkout equipment of particle.
Background technology
Present environmental monitoring air field, especially particle monitoring field, main monitoring project is particle quality concentration, comprises the on-line monitoring of TSP, PM10, PM2.5, also monitor the heavy metal in the particle in the minority area.The method of particle quality concentration on-line monitoring comprises β rays method, concussion sedimentation balance method, light scattering method etc.; And for the on-line monitoring of heavy metal in the particle, mainly adopt x-ray fluorescence method, electrochemical method.
The concussion sedimentation balance method can realize the Real-Time Monitoring of particle concentration, but its maintenance cost is higher, is subjected to humidity effect larger, and must install the film dynamic measurement system additional and just can be used for monitoring PM2.5, so certain limitation is received in its popularization.Adopt at present the particle quality concentration online analytical instrument of β rays method, and the heavy metal online analyzer device of x-ray fluorescence method, all adopt the filter membrane enrichment after, move to again the mode that surveyed area tests and carry out work.This mode owing to measuring blank needs, needs filter membrane to move back and forth in measurement, and the enrichment sample is surveyed in---moving to rich region---return measurement zone namely to survey blank sample in measured zone.In this course, filter membrane is accurately located, thus complex structure, easily cause the paper feed error, cause the inaccurate of measurement.In addition, this detection mode needs to move to surveyed area after the enrichment end, detects when can't realize enrichment, and is ageing relatively poor.
Summary of the invention
The present invention one of is intended to solve the problems of the technologies described above at least to a certain extent or provides at least a kind of useful commerce to select.
For this reason, one object of the present invention is to propose a kind of enrichment and checkout equipment that can carry out simultaneously the particle of particle enrichment and detection.
Enrichment and checkout equipment according to the particle of the embodiment of the invention, comprise: the sampling cavity, has sampling cavity in the described sampling cavity, be provided with the sampling membrane that described sampling cavity is divided into inlet chamber and outlet chamber in the described sampling cavity, described inlet chamber has air intake opening and described outlet chamber has the gas outlet; And pick-up unit, the detection window of described pick-up unit is communicated with that with described inlet chamber and/or described outlet chamber the particle that is enriched on the described sampling membrane is carried out determination and analysis.
Enrichment and checkout equipment according to the particle of the embodiment of the invention, by sampling membrane and pick-up unit are set in sampling cavity, can realize simultaneously enrichment and the detection of particle on sampling membrane, having overcome particle sampling separates with enrichment and carries out, the shortcoming that can't measure in real time, and can overcome the error that the sampling membrane motion causes, be applicable to gas particles thing on-line monitoring.
In addition, the enrichment of particle according to the above embodiment of the present invention and checkout equipment can also have following additional technical characterictic:
According to one embodiment of present invention, described pick-up unit is to be selected from a kind of in β thickness measurement with ray device, XRF device, the neutron activation device.
According to one embodiment of present invention, described air intake opening the place ahead is provided with the atmosphere cutter.
According to one embodiment of present invention, described atmosphere cutter is to be selected from a kind of in TSP cutter, PM10 cutter and the PM2.5 cutter.
According to one embodiment of present invention, the enrichment of described particle and checkout equipment also comprise the flow detection control device, and described flow detection control device is located at air inflow and the air output to control described sampling cavity in the described sampling gas circuit.
According to one embodiment of present invention, place, described gas outlet is provided with aspiration pump.
According to one embodiment of present invention, the filter membrane aperture of described sampling membrane is 0.1～2 micron.
According to one embodiment of present invention, described analysis comprises to the analysis of particle quality concentration with to the analysis of particle composition.
According to one embodiment of present invention, the analysis of described particle composition comprised inorganic constituents analysis and analyzing of organic composition.
According to one embodiment of present invention, described detection window place is provided with the isolated film of keeping apart for described detection window and described air intake opening.
According to one embodiment of present invention, also comprise and be wound with the sampling membrane unreeling shaft and be used for batching the sampling membrane Scroll of emitting sampling membrane from described sampling membrane unreeling shaft.
Additional aspect of the present invention and advantage in the following description part provide, and part will become obviously from the following description, or recognize by practice of the present invention.
Description of drawings
Above-mentioned and/or additional aspect of the present invention and advantage are from obviously and easily understanding becoming the description of embodiment in conjunction with following accompanying drawing, wherein:
Fig. 1 is the enrichment of particle according to an embodiment of the invention and the structural representation of checkout equipment;
Fig. 2 is the enrichment of particle according to another embodiment of the invention and the structural representation of checkout equipment;
Fig. 3 is the enrichment of particle according to still another embodiment of the invention and the structural representation of checkout equipment.
Embodiment
The below describes embodiments of the invention in detail, and the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or the element with identical or similar functions from start to finish.Be exemplary below by the embodiment that is described with reference to the drawings, be intended to for explaining the present invention, and can not be interpreted as limitation of the present invention.
In description of the invention, it will be appreciated that, term " on ", orientation or the position relationship of the indications such as D score, 'fornt', 'back', " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", " outward " be based on orientation shown in the drawings or position relationship, only be for convenience of description the present invention and simplified characterization, rather than indication or the hint device of indication or element must have specific orientation, with specific orientation structure and operation, therefore can not be interpreted as limitation of the present invention.
In addition, term " first ", " second " only are used for describing purpose, and can not be interpreted as indication or hint relative importance or the implicit quantity that indicates indicated technical characterictic.Thus, one or more these features can be expressed or impliedly be comprised to the feature that is limited with " first ", " second ".In description of the invention, the implication of " a plurality of " is two or more, unless clear and definite concrete restriction is arranged in addition.
In the present invention, unless clear and definite regulation and restriction are arranged in addition, broad understanding should be done in the terms such as term " installation ", " linking to each other ", " connection ", " fixing ", for example, can be to be fixedly connected with, and also can be to removably connect, or connect integratedly; Can be directly to link to each other, also can indirectly link to each other by intermediary, can be the connection of two element internals.For the ordinary skill in the art, can understand as the case may be above-mentioned term concrete meaning in the present invention.
In the present invention, unless clear and definite regulation and restriction are arranged in addition, First Characteristic Second Characteristic it " on " or D score can comprise that the first and second features directly contact, can comprise that also the first and second features are not directly contacts but by the other feature contact between them.And, First Characteristic Second Characteristic " on ", " top " and " above " comprise First Characteristic directly over Second Characteristic and oblique upper, or only represent that the First Characteristic level height is higher than Second Characteristic.First Characteristic Second Characteristic " under ", " below " and " below " comprise First Characteristic directly over Second Characteristic and oblique upper, or only represent that the First Characteristic level height is less than Second Characteristic.
Below in conjunction with enrichment and the checkout equipment of accompanying drawing specific descriptions according to the particle of the embodiment of the invention.
As shown in Figure 1 to Figure 3, enrichment and the checkout equipment according to the particle of the embodiment of the invention comprises: sampling cavity 10 and pick-up unit 20.
Particularly, as shown in Figure 1, have sampling cavity in the sampling cavity 10, be provided with the sampling membrane 30 that described sampling cavity is divided into inlet chamber 11 and outlet chamber 12 in the described sampling cavity, inlet chamber 11 has air intake opening 111 and outlet chamber 12 has gas outlet 121.The detection window of pick-up unit 20 is communicated with that with inlet chamber 11 and/or outlet chamber 12 particle that is enriched on the sampling membrane 30 is carried out determination and analysis.
Thus, enrichment and checkout equipment according to the particle of the embodiment of the invention, by sampling membrane 30 and pick-up unit 20 are set in sampling cavity, can realize simultaneously enrichment and the detection of particle on sampling membrane 30, having overcome particle sampling separates with enrichment and carries out, the shortcoming that can't measure in real time, and can overcome the error that sampling membrane 30 motions cause, be applicable to gas particles thing on-line monitoring.
It will be appreciated that, inlet chamber 11 and the position relationship of outlet chamber 12 in described sampling cavity do not have particular restriction, and inlet chamber 11 can be positioned at the top of sampling membrane 30, also can be positioned at the below of sampling membrane 30.When inlet chamber 11 was positioned at sampling membrane 30 top, air intake opening 111 was located at sampling cavity 10 tops, and outlet chamber 12 is positioned at the sampling membrane below, and gas outlet 121 is located at sampling cavity 10 bottoms (as shown in Figure 1).Correspondingly, when inlet chamber 11 was positioned at sampling membrane 30 below, air intake opening 111 was located at sampling cavity 10 bottoms, and outlet chamber 12 is positioned at the sampling membrane top, and gas outlet 121 is located at sampling cavity 10 tops.Below mainly be positioned at sampling membrane 30 tops with inlet chamber 11 embodiment enrichment and checkout equipment according to particle of the present invention are described.
About pick-up unit 20, need to understand and be, pick-up unit 20 does not have particular restriction with the position distribution of sampling membrane 30 yet, and the quantity of pick-up unit 20 do not have particular restriction yet, as long as satisfy the effect that can detect the particle on the sampling membrane 30.In other words, pick-up unit 20 can be located at the top of sampling membrane 30, also can be located at the below of sampling membrane 30, and pick-up unit 20 can also be two above and belows that also are located at respectively sampling membrane 20.
Particularly, according to one embodiment of present invention, pick-up unit 20 can be for being selected from a kind of in β thickness measurement with ray device, XRF device, the neutron activation device.
As shown in Figure 2, according to one embodiment of present invention, the described detection window place of pick-up unit 20 is provided with the isolated film 21 of keeping apart for described detection window and air intake opening 111.Thus, can make the gas circuit sealing.
As shown in Figure 3, according to one embodiment of present invention, air intake opening 111 the place aheads are provided with the atmosphere cutter.Particularly, according to one embodiment of present invention, the atmosphere cutter comprises TSP cutter, PM10 cutter 41 and PM2.5 cutter 42.Thus, by obtaining the particle of required particle diameter after the particle in the gas is cut.
Advantageously, according to one embodiment of present invention, the enrichment of described particle and checkout equipment also comprise flow detection control device 60, and flow detection control device 60 is located in the sampling gas circuit to control air inflow and the air output of sampling cavity 10.Further, 121 places, gas outlet are provided with aspiration pump 50.Thus, can realize the circulation of gas in sampling cavity 10 under the effect of aspiration pump 50, flow controller 60 can be controlled the flow of gas, is convenient to gas is carried out enrichment and detection.
Further, according to one embodiment of present invention, the enrichment of described particle and checkout equipment also comprise be wound with sampling membrane unreeling shaft 70 and be used for batching emit sampling membrane 30 from sampling membrane unreeling shaft 70 sampling membrane Scroll 80(as shown in Figure 3).Particularly, sampling membrane unreeling shaft 70 and sampling membrane Scroll 80 are by motor-driven, sampling membrane unreeling shaft 70 is emitted sampling membrane 30 and sampling membrane 30 is moved in the sampling cavity 10, after through particle enrichment and detection, sampling membrane Scroll 80 batches sampling membrane 30 and the particle enrichment region can be moved to the subsequent detection zone, and for example XRF surveyed area 90 carries out Heavy metal.Thus, can realize continuous enrichment and the detection of sampling membrane 30 by sampling membrane unreeling shaft 70 and sampling membrane Scroll 80, and be convenient to carry out follow-up monitoring, can be applied to the mass concentration of particle in surrounding air, industrial process gas and the waste gas and the on-line monitoring of heavy metal concentration.
About sampling membrane 30, it will be appreciated that, the selection of sampling membrane does not have particular restriction, the filter membrane that can adopt those of ordinary skills to commonly use.Preferably, according to one embodiment of present invention, sampling membrane 30 is for being selected from a kind of in organic high molecular layer, glass fibre membrane, the quartz film.Further, according to one embodiment of present invention, the filter membrane aperture of sampling membrane 30 is 0.1～2 micron.Thus, the particle rejection that the sampling membrane in this aperture is 30 pairs 0.3 micron is more than 99.97%, effectively the enrichment particle.
Particularly, according to enrichment and the checkout equipment of the particle of the embodiment of the invention, the analysis of particle is comprised to the analysis of particle quality concentration with to the analysis of particle composition.Further, according to one embodiment of present invention, the analysis of described particle composition is comprised inorganic constituents analysis and analyzing of organic composition.
Below in conjunction with enrichment and checkout equipment and the operating process of embodiment specific descriptions according to the particle of the embodiment of the invention.
At first, as shown in Figure 3, comprise according to enrichment and the checkout equipment of the particle of the embodiment of the invention: sampling cavity 10 and pick-up unit 20.
Have sampling cavity in the sampling cavity 10, be provided with the sampling membrane 30 that described sampling cavity is divided into inlet chamber 11 and outlet chamber 12 in the described sampling cavity, inlet chamber 11 has air intake opening 111 and outlet chamber 12 has gas outlet 121.Pick-up unit 20 be located at respectively sampling membrane 30 directly over and under.Wherein, be positioned at sampling membrane 30 directly over pick-up unit 20 be β thickness measurement with ray device, be positioned at sampling membrane 30 under pick-up unit 20 be the C14 radioactive source.
Air intake opening 111 places are provided with PM10 cutter 41 and PM2.5 cutter 42, and flow detection control device 60 is located in the sampling gas circuit, and 121 places, gas outlet are provided with aspiration pump 50.
The enrichment of described particle and checkout equipment also comprise and are wound with sampling membrane unreeling shaft 70 and are used for batching the sampling membrane Scroll 80 of emitting sampling membrane 30 from sampling membrane unreeling shaft 60.
The enrichment of described particle and checkout equipment be in use:
The particle rich region that the sampling membrane 30 of the one section blank of at first moving forms to air intake opening 111 belows, β thickness measurement with ray device begins counting, the quality of the sampling membrane 30 of blank testing.
Then under the control of the air-extraction function of aspiration pump 50 and flow controller 60, gas passes through PM10 cutter 41 and PM2.5 cutter 42 successively, and the particle of required particle diameter is enriched on the filter membrane.
Behind one section Preset Time of enrichment, β thickness measurement with ray device counting, the quality of measurement particle enrichment post-sampling filter membrane 30.
Concentration according to formula 1 count particles thing.
Wherein, C is concentration (the μ g/m of particle
3);
S is particle rich region area (cm
2);
V is for being scaled gas volume (m under the standard state
3);
μ
mBe mass absorption coefficient, unit is cm
2/ mg;
I
0Be beta-ray gauge digit rate mean value before the enrichment;
I is beta-ray gauge digit rate mean value after the enrichment.
After the particle enrichment and detecting, sampling membrane Scroll 80 batches sampling membrane 30 and the particle enrichment region is moved to XRF surveyed area 90 and carries out Heavy metal.
Thus, monitoring can be applied to the mass concentration of particle in surrounding air, industrial process gas and the waste gas and the on-line monitoring of heavy metal concentration when can realize the mass concentration of particle in the gas and heavy metal concentration.
In the description of this instructions, the description of reference term " embodiment ", " some embodiment ", " example ", " concrete example " or " some examples " etc. means to be contained at least one embodiment of the present invention or the example in conjunction with specific features, structure, material or the characteristics of this embodiment or example description.In this manual, the schematic statement of above-mentioned term not necessarily referred to identical embodiment or example.And the specific features of description, structure, material or characteristics can be with suitable mode combinations in any one or more embodiment or example.
Although the above has illustrated and has described embodiments of the invention, be understandable that, above-described embodiment is exemplary, can not be interpreted as limitation of the present invention, those of ordinary skill in the art is not in the situation that break away from principle of the present invention and aim can change above-described embodiment within the scope of the invention, modification, replacement and modification.
Claims (11)
1. the enrichment of a particle and checkout equipment is characterized in that, comprising:
The sampling cavity has sampling cavity in the described sampling cavity, is provided with the sampling membrane that described sampling cavity is divided into inlet chamber and outlet chamber in the described sampling cavity, and described inlet chamber has air intake opening and described outlet chamber has the gas outlet; With
Pick-up unit, the detection window of described pick-up unit are communicated with that with described inlet chamber and/or described outlet chamber the particle that is enriched on the described sampling membrane is carried out determination and analysis.
2. the enrichment of particle according to claim 1 and checkout equipment is characterized in that, described pick-up unit is to select a kind of in β thickness measurement with ray device, XRF device, the neutron activation device.
3. the enrichment of particle according to claim 1 and checkout equipment is characterized in that, described air intake opening the place ahead is provided with the atmosphere cutter.
4. the enrichment of particle according to claim 3 and checkout equipment is characterized in that, described atmosphere cutter is to be selected from a kind of in TSP cutter, PM10 cutter and the PM2.5 cutter.
5. the enrichment of particle according to claim 1 and checkout equipment, it is characterized in that, the enrichment of described particle and checkout equipment also comprise the flow detection control device, and described flow detection control device is located at air inflow and the air output to control described sampling cavity in the described sampling gas circuit.
6. the enrichment of particle according to claim 1 and checkout equipment is characterized in that, place, described gas outlet is provided with aspiration pump.
7. the enrichment of particle according to claim 1 and checkout equipment is characterized in that, the filter membrane aperture of described sampling membrane is 0.1～2 micron.
8. the enrichment of particle according to claim 1 and checkout equipment is characterized in that, described analysis comprises to the analysis of particle quality concentration with to the analysis of particle composition.
9. the enrichment of particle according to claim 8 and checkout equipment is characterized in that, the analysis of described particle composition is comprised inorganic constituents analysis and analyzing of organic composition.
10. the enrichment of described particle and checkout equipment is characterized in that according to claim 1-9, and described detection window place is provided with the isolated film of keeping apart for described detection window and described air intake opening.
11. the enrichment of particle according to claim 1 and checkout equipment is characterized in that, also comprise being wound with the sampling membrane unreeling shaft and being used for batching the sampling membrane Scroll of emitting sampling membrane from described sampling membrane unreeling shaft.
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| CN2012104833975A CN103323319A (en) | 2012-11-23 | 2012-11-23 | Enriching and detecting equipment for particles |
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| CN2012104833975A CN103323319A (en) | 2012-11-23 | 2012-11-23 | Enriching and detecting equipment for particles |
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Cited By (16)
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| CN103822934A (en) * | 2014-02-19 | 2014-05-28 | 中南大学 | On-line detection device and method for heavy metal content in flue gas |
| CN104502248A (en) * | 2014-12-31 | 2015-04-08 | 江苏天瑞仪器股份有限公司 | Automatic dual-ray detection method of mass concentration and elementary composition of particulate matter in gaseous fluid |
| CN105866153A (en) * | 2016-03-31 | 2016-08-17 | 北方工业大学 | Atmosphere heavy metal detection system |
| CN105954075A (en) * | 2016-04-28 | 2016-09-21 | 中国原子能科学研究院 | Method for preparing series of micro-dust standard samples for XRF and TXRF analysis |
| CN106405125A (en) * | 2016-03-31 | 2017-02-15 | 北方工业大学 | Atmospheric detection case structure |
| CN107271339A (en) * | 2017-06-29 | 2017-10-20 | 苏州浪声科学仪器有限公司 | Fine grained on-line analysis device |
| CN108801715A (en) * | 2018-05-18 | 2018-11-13 | 南京航空航天大学 | A kind of novel radioactive aerosol real-time sampling measuring device and its measurement method |
| CN110057985A (en) * | 2019-05-29 | 2019-07-26 | 兰州易助科研设备科技有限公司 | A kind of high-altitude monitoring device |
| CN110132799A (en) * | 2019-04-23 | 2019-08-16 | 浙江工业大学 | Method based on nano particle pollutant in the enrichment of functional form micro-nano bubble and microfluidic separation joint technology detection water |
| CN111141645A (en) * | 2019-11-15 | 2020-05-12 | 江苏天瑞仪器股份有限公司 | Real-time particulate matter measuring method based on β ray method and light scattering principle |
| CN111141646A (en) * | 2019-11-15 | 2020-05-12 | 江苏天瑞仪器股份有限公司 | Real-time particulate matter measuring device based on β ray method and light scattering principle |
| CN111398082A (en) * | 2020-04-22 | 2020-07-10 | 山东科技大学 | Real-time monitoring device and method for content of free silica in industrial and mining dust |
| CN111426004A (en) * | 2020-03-25 | 2020-07-17 | 江苏安捷鹿检测科技有限公司 | Distributed indoor air monitoring method |
| CN113702566A (en) * | 2021-08-24 | 2021-11-26 | 江苏中烟工业有限责任公司 | Device and method for analyzing sedimentation components in smoke particulate matter |
| CN114045217A (en) * | 2022-01-11 | 2022-02-15 | 至美时代生物智能科技(北京)有限公司 | Air microorganism sampling device and air microorganism sampling and detecting integrated device |
| CN110057985B (en) * | 2019-05-29 | 2024-04-26 | 兰州易助科研设备科技有限公司 | High altitude monitoring facilities |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103822934A (en) * | 2014-02-19 | 2014-05-28 | 中南大学 | On-line detection device and method for heavy metal content in flue gas |
| CN104502248A (en) * | 2014-12-31 | 2015-04-08 | 江苏天瑞仪器股份有限公司 | Automatic dual-ray detection method of mass concentration and elementary composition of particulate matter in gaseous fluid |
| CN105866153A (en) * | 2016-03-31 | 2016-08-17 | 北方工业大学 | Atmosphere heavy metal detection system |
| CN106405125A (en) * | 2016-03-31 | 2017-02-15 | 北方工业大学 | Atmospheric detection case structure |
| CN105954075A (en) * | 2016-04-28 | 2016-09-21 | 中国原子能科学研究院 | Method for preparing series of micro-dust standard samples for XRF and TXRF analysis |
| CN107271339A (en) * | 2017-06-29 | 2017-10-20 | 苏州浪声科学仪器有限公司 | Fine grained on-line analysis device |
| CN108801715A (en) * | 2018-05-18 | 2018-11-13 | 南京航空航天大学 | A kind of novel radioactive aerosol real-time sampling measuring device and its measurement method |
| CN110132799B (en) * | 2019-04-23 | 2021-07-27 | 浙江工业大学 | Method for detecting nano-particle pollutants in water based on functional micro-nano bubble enrichment and micro-fluidic separation combined technology |
| CN110132799A (en) * | 2019-04-23 | 2019-08-16 | 浙江工业大学 | Method based on nano particle pollutant in the enrichment of functional form micro-nano bubble and microfluidic separation joint technology detection water |
| CN110057985A (en) * | 2019-05-29 | 2019-07-26 | 兰州易助科研设备科技有限公司 | A kind of high-altitude monitoring device |
| CN110057985B (en) * | 2019-05-29 | 2024-04-26 | 兰州易助科研设备科技有限公司 | High altitude monitoring facilities |
| CN111141646A (en) * | 2019-11-15 | 2020-05-12 | 江苏天瑞仪器股份有限公司 | Real-time particulate matter measuring device based on β ray method and light scattering principle |
| CN111141645B (en) * | 2019-11-15 | 2023-06-02 | 江苏天瑞仪器股份有限公司 | Real-time particle measurement method based on beta-ray method and light scattering principle |
| CN111141645A (en) * | 2019-11-15 | 2020-05-12 | 江苏天瑞仪器股份有限公司 | Real-time particulate matter measuring method based on β ray method and light scattering principle |
| CN111426004A (en) * | 2020-03-25 | 2020-07-17 | 江苏安捷鹿检测科技有限公司 | Distributed indoor air monitoring method |
| CN111398082A (en) * | 2020-04-22 | 2020-07-10 | 山东科技大学 | Real-time monitoring device and method for content of free silica in industrial and mining dust |
| CN113702566A (en) * | 2021-08-24 | 2021-11-26 | 江苏中烟工业有限责任公司 | Device and method for analyzing sedimentation components in smoke particulate matter |
| CN113702566B (en) * | 2021-08-24 | 2023-10-03 | 江苏中烟工业有限责任公司 | Device and method for analyzing sedimentation component in smoke particulate matters |
| CN114045217A (en) * | 2022-01-11 | 2022-02-15 | 至美时代生物智能科技(北京)有限公司 | Air microorganism sampling device and air microorganism sampling and detecting integrated device |
| CN114045217B (en) * | 2022-01-11 | 2022-04-19 | 至美时代生物智能科技(北京)有限公司 | Air microorganism sampling device and air microorganism sampling and detecting integrated device |
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