CN103439465A - Formaldehyde emission analytical detection system and detection method thereof - Google Patents
Formaldehyde emission analytical detection system and detection method thereof Download PDFInfo
- Publication number
- CN103439465A CN103439465A CN2013103845611A CN201310384561A CN103439465A CN 103439465 A CN103439465 A CN 103439465A CN 2013103845611 A CN2013103845611 A CN 2013103845611A CN 201310384561 A CN201310384561 A CN 201310384561A CN 103439465 A CN103439465 A CN 103439465A
- Authority
- CN
- China
- Prior art keywords
- air
- methanal
- burst size
- detection system
- analytic approach
- 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.)
- Granted
Links
Images
Landscapes
- Sampling And Sample Adjustment (AREA)
Abstract
The invention discloses a formaldehyde emission analytical detection system for detecting the formaldehyde emission of a detected object. The formaldehyde emission analytical detection system comprises an air pump, an air pretreatment device, a detected object detection cabin, air sampling equipment and air analysis equipment which are sequentially communicated with one other and through which air sequentially flows, wherein the air sampling equipment comprises a plurality of absorption bottles which are correspondingly connected with the detected object detection cabin through a plurality of electromagnetic valves; the multiple electromagnetic valves are opened or closed at intervals. The formaldehyde emission analytical detection system can alleviate the influence of external factors on a detection result by pretreating external air; the multiple absorption bottles are opened at set intervals and can absorb air with different formaldehyde content, and the formaldehyde emission of the detected object and a relation curve between the formaldehyde emission of the detected object and the emission time are obtained to analyze the formaldehyde emission of the detected object effectively. The invention also discloses a formaldehyde emission analytical detection method.
Description
Technical field
The present invention relates to a kind of burst size of methanal analytic approach detection system, particularly relate to a kind of burst size of methanal analytic approach detection method.
Background technology
Along with social development, people start progressively to start to focus on environmental protection, burst size of methanal pay attention to day by day for furniture or sheet material gets up, therefore extraction has appearred in succession, exsiccator method and climate box method etc. detect furniture, and wherein, extraction is simple, easy to operate, but the directly pollution of reaction formaldehyde burst size to environment of testing result; Adopt titrimetry when the exsiccator method is demarcated formaldehyde, but the method measuring accuracy is low, test specification is narrow; The advantage of climate box method maximum is actual environment can accurate be simulated, and the method can be tested accurately to the burst size of methanal of furniture or sheet material, but this equipment volume is large, and cost is high, and test period is long, runs counter to country to energy-saving and cost-reducing demand.
Summary of the invention
Purpose of the present invention just is to provide a kind of burst size of methanal analytic approach detection system that more effectively, more accurately detects the burst size of methanal in measured piece.
For addressing the above problem, the invention provides a kind of burst size of methanal analytic approach detection system, for detection of the burst size of methanal in measured piece, comprise that air is flowed through successively and be communicated with successively pneumatic pump, air pretreatment device, measured piece detection cabin body, air sampling equipment and the air analysis equipment arranged, described air sampling equipment comprises a plurality of absorption bottles, and described a plurality of absorption bottles are by the corresponding described measured piece detection cabin body that connects of a plurality of solenoid valves; Described a plurality of solenoid valve opens or cuts out interval time.
Preferably, described air pretreatment device comprises air filtration combination three linked piece, U-shaped drying tube and register, and described register comprises that temperature adjustment water tank and bending are arranged at described temperature adjustment water tank Air copper pipe; Described pneumatic pump, air filtration combination three linked piece, U-shaped drying tube, air copper pipe and measured piece detect the cabin body and are communicated with successively setting.
Preferably, described burst size of methanal analytic approach detection system also comprises control device, and described control device comprises control module, and described control module is electrically connected to described pneumatic pump and solenoid valve.
Preferably, described control device also comprises temperature sensor, pressure transducer and flowmeter, and described temperature sensor and pressure transducer are arranged at described measured piece and detect on the body inwall of cabin; Described flowmeter is arranged between described U-shaped drying tube and described air copper pipe; Described temperature sensor, pressure transducer and flowmeter are electrically connected to described control module, and described control module is electrically connected to described air filtration combination three linked piece, temperature adjustment water tank and pneumatic pump.
Preferably, described control device also comprises display unit, and described display unit is electrically connected to described control module.
Preferably, the outside that described measured piece detects the cabin body also is provided with the heat conduction cavity, and described heat conduction cavity is communicated with setting with described temperature adjustment water tank.
Preferably, described tested detection cabin body also is provided with steam inlet, and described steam inlet is communicated with described temperature adjustment water tank.
Preferably, the outside of described heat conduction cavity also is provided with the polyurethane heat insulation material layer.
Preferably, described burst size of methanal analytic approach detection system also comprises external casing, and described external casing is provided with universal caster wheel; Described burst size of methanal analytic approach detection system is built in described external casing.
The present invention also provides the another one technical scheme: a kind of burst size of methanal analytic approach detection method, adopt burst size of methanal analytic approach detection system as above, and comprise the steps:
(1) accept air, by described pneumatic pump, receive outside air;
(2) air pretreatment, by described air filtration combination three linked piece, U-shaped drying tube and temperature adjustment water tank, described outside air is carried out to drainage, oil strain, decompression, dehumidifying and temperature adjustment respectively, formation temperature is 50-60 ℃, the pure air that pressure is 1000Pa-1200Pa;
(3) gather pure air, described pure air is passed into to described measured piece and detect the cabin body, and gather described pure air by one in a plurality of described absorption bottles;
(4) measured piece release formaldehyde, put into the described measured piece of stating described measured piece and detect the cabin body and make its Spontaneous release formaldehyde gas, forms the air containing formaldehyde;
(5) gather the air containing formaldehyde, open the solenoid valve corresponding to absorption bottle of the remainder in a plurality of described absorption bottles interval time, and the described air containing formaldehyde is collected in the absorption bottle of described remainder;
(6) analyze the burst size of methanal of measured piece, the content of formaldehyde by the described pure air of described air analysis device analysis and the described air containing formaldehyde, form the burst size of methanal curve map.
Adopt the beneficial effect of this technical scheme to be, the present invention by arrange the air pretreatment device to external world air carry out pre-service, can reduce the impact of extraneous factor on testing result, by a plurality of absorption bottles are set, and open at set intervals an absorption bottle, each absorption bottle absorbs the air that contains different content of formaldehyde, thereby draws burst size of methanal and the burst size of methanal of measured piece and the relation curve of release time of measured piece, thus the burst size of methanal of more effective analysis measured piece.
The accompanying drawing explanation
The front elevation that Fig. 1 is a kind of burst size of methanal analytic approach of the present invention detection system embodiment 1;
The right view of the burst size of methanal analytic approach detection system embodiment 1 that Fig. 2 is a kind of furniture of the present invention or sheet material;
The left view of the burst size of methanal analytic approach detection system embodiment 1 that Fig. 3 is a kind of furniture of the present invention or sheet material;
The front elevation that Fig. 4 is a kind of burst size of methanal analytic approach of the present invention detection system embodiment 2;
The right view of the burst size of methanal analytic approach detection system embodiment 2 that Fig. 5 is a kind of furniture of the present invention or sheet material;
The left view of the burst size of methanal analytic approach detection system embodiment 2 that Fig. 6 is a kind of furniture of the present invention or sheet material;
The left view of the burst size of methanal analytic approach detection system embodiment 3 that Fig. 7 is a kind of furniture of the present invention or sheet material;
The left view of the burst size of methanal analytic approach detection system embodiment 4 that Fig. 8 is a kind of furniture of the present invention or sheet material.
Among them, 1 air pump, 21 Air Filter Combination FRL, 211., Air filter combination FRL entrance, 212., Air filter combination FRL export,, 22.U shaped drying tube,, 221.U drying tube-shaped entrance,, 222.U shaped drying tube outlet, and 23 air brass, 231 air brass entrance, 232. brass exports, 24. thermostat tank, 241., thermostat tank hot water inlet, 242., hot water tank thermostat outlet, 2421. heat pumps 3. DUT detection cabin, 31. DUT detection cabin entrance, 32. DUT detection cabin exports, 33. thermal cavity 331. thermal hot water inlet body cavity, 332. thermal hot water outlet chamber, 34., polyurethane insulation material layer, 4. absorption bottles, 5. solenoid valve , 611 temperature sensor 612 pressure sensor 613. meter, 62 control unit, 621 start button 622. stop button, 623 power supply button, 63 display unit ,, 7. external Case, 71. casters.
?
embodiment
Describe a preferred embodiment of the present invention in detail below in conjunction with accompanying drawing.
Referring to Fig. 1-Fig. 3, as shown in legend wherein, a kind of burst size of methanal analytic approach detection system, for detection of the burst size of methanal in measured piece, comprise that air is flowed through successively and be communicated with successively a pneumatic pump 1, an air pretreatment device, a measured piece detection cabin body 3, an air sampling equipment and the air analysis equipment (not shown) arranged, above-mentioned air sampling equipment comprises eight absorption bottles 4, and these eight absorption bottles 4 detect cabin body 3 by the corresponding measured piece that connects of eight solenoid valves 5; Eight solenoid valves 5 are opened at interval successively in one hour successively.
Above-mentioned air pretreatment device comprises an air filtration combination three linked piece 21, dry 22 pipe and the registers of a U-shaped, and above-mentioned register comprises that a temperature adjustment water tank 24 and bending are arranged at an air copper pipe 23 in temperature adjustment water tank 24; Pneumatic pump 1, air filtration combination three linked piece 21, U-shaped drying tube 22, air copper pipe 23 and measured piece detect cabin body 3 and are communicated with and arrange successively.
Air filtration combination three linked piece 21 has an air filtration combination three linked piece entrance 211 and an air filtration combination three linked piece outlet 212; Air filtration combination three linked piece entrance 211 is communicated with pneumatic pump 1;
U-shaped drying tube 22 has a U-shaped drying tube entrance 221 and U-shaped drying tube outlet 222, and U-shaped drying tube entrance 221 is communicated with air filtration combination three linked piece outlet 212;
Measured piece detects cabin body 3 and has a measured piece detection cabin body entrance 31 and a measured piece detection cabin body outlet 32, and measured piece detection cabin body entrance 31 is communicated with the air copper pipe and exports 232, and measured piece detection cabin body outlet 32 is passed through solenoid valve 5 and is communicated with absorption bottle 4.
Further, above-mentioned burst size of methanal analytic approach detection system also comprises an external casing 7, and external casing 7 has universal caster wheel 71; Above-mentioned burst size of methanal analytic approach detection system is built in external casing 7.
Below a kind of burst size of methanal analytic approach detection method, adopt above-mentioned burst size of methanal analytic approach detection system, comprise the steps:
(1) accept air, by pneumatic pump 1, receive outside air;
(2) air pretreatment, combine three linked piece 21, U-shaped drying tube 22 and 24 pairs of above-mentioned outside airs of temperature adjustment water tank by air filtration respectively and carry out drainage, oil strain, decompression, dehumidifying and temperature adjustment, formation temperature is 50-60 ℃, the pure air that pressure is 1000Pa-1200Pa;
(3) gather pure air, above-mentioned pure air is passed into to measured piece and detect cabin body 3, and gather above-mentioned pure air by one in eight absorption bottles 4;
(4) measured piece release formaldehyde, put into measured piece detection cabin body 3 by measured piece and make its Spontaneous release formaldehyde gas, forms the air containing formaldehyde;
(5) gather the air containing formaldehyde, opened successively the solenoid valve of seven remaining absorption bottle 4 correspondences between one hour, the above-mentioned air containing formaldehyde is collected in seven remaining absorption bottles;
(6) analyze the burst size of methanal of measured piece, the content of formaldehyde by the above-mentioned pure air of above-mentioned air analysis device analysis and the above-mentioned air containing formaldehyde, form the burst size of methanal curve map.
Embodiment 2
Referring to Fig. 4-Fig. 6, as shown in legend wherein, all the other are identical with described embodiment 1, difference is, above-mentioned burst size of methanal analytic approach detection system also comprises a control device, and the above-mentioned control device of stating comprises a control module 62, and control module 62 is provided with start button 621, stop button 622 and a power knob 633, and control the startup of pneumatic pump 1 and stop and powering, control module 62 is also controlled solenoid valve 5 by certain program opening and closing interval time.
Further, above-mentioned control device also comprises a temperature sensor 611 and a pressure transducer 612 that is arranged at measured piece detection cabin body 3 inwalls and the flowmeter 613 that is arranged at U-shaped drying tube outlet 222, temperature sensor 611, pressure transducer 612 and flowmeter 613 are electrically connected to control module 62, and control module 62 is electrically connected to air filtration combination three linked piece 21, temperature adjustment water tank 24 and pneumatic pump 1.
Further, above-mentioned control device also comprises a display unit 63, and display unit 63 is electrically connected to control module 62.
More every data of PARA FORMALDEHYDE PRILLS(91,95) burst size detection system are monitored.
Referring to Fig. 7, as shown in legend wherein, all the other are identical with described embodiment 1, and difference is, the outside that measured piece detects cabin body 3 also is provided with heat conduction cavity 33;
Temperature adjustment water tank outlet 24 has a tempered water tank inlet 241 and temperature adjustment water tank outlet 242;
Temperature adjustment water tank 24 not only can be heated the air of flowing through, and can heat the outside that measured piece detects cabin body 3.
Referring to Fig. 8, as shown in legend wherein, all the other are identical with described embodiment 1, and difference is, the outside of heat conduction cavity 33 also is provided with a polyurethane heat insulation material layer 34.
Can make measured piece detect cabin body 3 and there is better temperature persistance.
Adopt the beneficial effect of this technical scheme to be, the present invention by arrange the air pretreatment device to external world air carry out pre-service, can reduce the impact of extraneous factor on testing result, by a plurality of absorption bottles are set, and open at set intervals an absorption bottle, each absorption bottle absorbs the air that contains different content of formaldehyde, thereby draws burst size of methanal and the burst size of methanal of measured piece and the relation curve of release time of measured piece, thus the burst size of methanal of more effective analysis measured piece.
The above is only the preferred embodiment of the present invention, it should be pointed out that without departing from the concept of the premise of the invention, can also make some distortion and improvement, and these all belong to protection scope of the present invention.
Claims (9)
1. a burst size of methanal analytic approach detection system, burst size of methanal for detection of measured piece, it is characterized in that, comprise that air is flowed through successively and be communicated with successively pneumatic pump, air pretreatment device, measured piece detection cabin body, air sampling equipment and the air analysis equipment arranged, described air sampling equipment comprises a plurality of absorption bottles, and described a plurality of absorption bottles are by the corresponding described measured piece detection cabin body that connects of a plurality of solenoid valves; Described a plurality of solenoid valve opens or cuts out interval time.
2. burst size of methanal analytic approach detection system according to claim 1, it is characterized in that, described air pretreatment device comprises air filtration combination three linked piece, U-shaped drying tube and register, and described register comprises that temperature adjustment water tank and bending are arranged at described temperature adjustment water tank Air copper pipe; Described pneumatic pump, air filtration combination three linked piece, U-shaped drying tube, air copper pipe and measured piece detect the cabin body and are communicated with successively setting.
3. burst size of methanal analytic approach detection system according to claim 2, it is characterized in that, described burst size of methanal analytic approach detection system also comprises control device, and described control device comprises control module, and described control module is electrically connected to described pneumatic pump and solenoid valve.
4. burst size of methanal analytic approach detection system according to claim 3, it is characterized in that, described control device also comprises temperature sensor, pressure transducer and flowmeter, and described temperature sensor and pressure transducer are arranged at described measured piece and detect on the body inwall of cabin; Described flowmeter is arranged between described U-shaped drying tube and described air copper pipe; Described temperature sensor, pressure transducer and flowmeter are electrically connected to described control module, and described control module is electrically connected to described air filtration combination three linked piece, temperature adjustment water tank and pneumatic pump.
5. burst size of methanal analytic approach detection system according to claim 4, is characterized in that, described control device also comprises display unit, and described display unit is electrically connected to described control module.
6. burst size of methanal analytic approach detection system according to claim 2, is characterized in that, the outside that described measured piece detects the cabin body also is provided with the heat conduction cavity, and described heat conduction cavity is communicated with setting with described temperature adjustment water tank.
7. burst size of methanal analytic approach detection system according to claim 6, is characterized in that, the outside of described heat conduction cavity also is provided with the polyurethane heat insulation material layer.
8. according to the arbitrary described burst size of methanal analytic approach detection system of claim 1-7, it is characterized in that, described burst size of methanal analytic approach detection system also comprises external casing, and described external casing is provided with universal caster wheel; Described burst size of methanal analytic approach detection system is built in described external casing.
9. the burst size of methanal analytic approach detection method of a furniture or sheet material, is characterized in that, adopts burst size of methanal analytic approach detection system as claimed in claim 2, comprises the steps:
(1) accept air, by described pneumatic pump, receive outside air;
(2) air pretreatment, by described air filtration combination three linked piece, U-shaped drying tube and temperature adjustment water tank, described outside air is carried out to drainage, oil strain, decompression, dehumidifying and temperature adjustment respectively, formation temperature is 50-60 ℃, the pure air that pressure is 1000Pa-1200Pa;
(3) gather pure air, described pure air is passed into to described measured piece and detect the cabin body, and gather described pure air by one in a plurality of described absorption bottles;
(4) measured piece release formaldehyde, put into described measured piece detection cabin body by described measured piece and make its Spontaneous release formaldehyde gas, forms the air containing formaldehyde;
(5) gather the air containing formaldehyde, open the solenoid valve corresponding to absorption bottle of the remainder in a plurality of described absorption bottles interval time, and the described air containing formaldehyde is collected in the absorption bottle of described remainder;
(6) analyze the burst size of methanal of measured piece, the content of formaldehyde by the described pure air of described air analysis device analysis and the described air containing formaldehyde, form the burst size of methanal curve map.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310384561.1A CN103439465B (en) | 2013-08-30 | 2013-08-30 | A kind of burst size of methanal analytic approach detection system and detection method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310384561.1A CN103439465B (en) | 2013-08-30 | 2013-08-30 | A kind of burst size of methanal analytic approach detection system and detection method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103439465A true CN103439465A (en) | 2013-12-11 |
| CN103439465B CN103439465B (en) | 2016-02-03 |
Family
ID=49693169
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310384561.1A Active CN103439465B (en) | 2013-08-30 | 2013-08-30 | A kind of burst size of methanal analytic approach detection system and detection method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103439465B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108375622A (en) * | 2018-02-27 | 2018-08-07 | 英特尔产品（成都）有限公司 | Fluid analysis apparatus and system |
| CN111948207A (en) * | 2020-08-13 | 2020-11-17 | 抚州元文科技发展有限公司 | Fitment indoor air formaldehyde detection device |
| CN112697496A (en) * | 2021-03-24 | 2021-04-23 | 南京巴兰登家具有限公司 | Furniture board formaldehyde detection device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101216484A (en) * | 2007-12-28 | 2008-07-09 | 周玉成 | Artificial board formaldehyde burst size detection system |
| JP2008232796A (en) * | 2007-03-20 | 2008-10-02 | Nippon Telegr & Teleph Corp <Ntt> | Formaldehyde detection element |
| CN201210136Y (en) * | 2008-06-06 | 2009-03-18 | 广东出入境检验检疫局检验检疫技术中心 | Fast detection apparatus for formaldehyde release amount |
| CN201811956U (en) * | 2010-10-21 | 2011-04-27 | 上海科绿特环境科技有限公司 | Artificial board formaldehyde release tester by catharometry |
| CN203443949U (en) * | 2013-08-30 | 2014-02-19 | 昆山市创新科技检测仪器有限公司 | System for detecting formaldehyde emission amount with analytical method |
-
2013
- 2013-08-30 CN CN201310384561.1A patent/CN103439465B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008232796A (en) * | 2007-03-20 | 2008-10-02 | Nippon Telegr & Teleph Corp <Ntt> | Formaldehyde detection element |
| CN101216484A (en) * | 2007-12-28 | 2008-07-09 | 周玉成 | Artificial board formaldehyde burst size detection system |
| CN201210136Y (en) * | 2008-06-06 | 2009-03-18 | 广东出入境检验检疫局检验检疫技术中心 | Fast detection apparatus for formaldehyde release amount |
| CN201811956U (en) * | 2010-10-21 | 2011-04-27 | 上海科绿特环境科技有限公司 | Artificial board formaldehyde release tester by catharometry |
| CN203443949U (en) * | 2013-08-30 | 2014-02-19 | 昆山市创新科技检测仪器有限公司 | System for detecting formaldehyde emission amount with analytical method |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108375622A (en) * | 2018-02-27 | 2018-08-07 | 英特尔产品（成都）有限公司 | Fluid analysis apparatus and system |
| CN108375622B (en) * | 2018-02-27 | 2019-07-23 | 英特尔产品（成都）有限公司 | Fluid analysis apparatus and system |
| CN111948207A (en) * | 2020-08-13 | 2020-11-17 | 抚州元文科技发展有限公司 | Fitment indoor air formaldehyde detection device |
| CN111948207B (en) * | 2020-08-13 | 2023-10-17 | 东至县森茂炭业有限公司 | Decoration indoor air formaldehyde detection device |
| CN112697496A (en) * | 2021-03-24 | 2021-04-23 | 南京巴兰登家具有限公司 | Furniture board formaldehyde detection device |
| CN112697496B (en) * | 2021-03-24 | 2021-07-06 | 青岛华谊优品智能家具股份有限公司 | Furniture board formaldehyde detection device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103439465B (en) | 2016-02-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101793585B (en) | Device and method for detecting sealing property of sealing element | |
| CN203259519U (en) | Pollution source flue gas automatic monitoring system | |
| CN103439465B (en) | A kind of burst size of methanal analytic approach detection system and detection method thereof | |
| CN202939322U (en) | Device for calibrating humidity dynamic response characteristics of sonde with double-flow method | |
| CN203519585U (en) | Air quality detection device | |
| CN104897859A (en) | Indoor methanol concentration detecting system with temperature compensating function | |
| CN103412097B (en) | The pick-up unit of a kind of VOC and burst size of methanal and detection method thereof | |
| CN103226086A (en) | Online rapid viscosity measuring device for rock core displacement experiment under high temperature and high pressure | |
| CN102998720A (en) | Method and device for calibrating dynamic response characteristic of sonde humidity by double flow method | |
| CN103018313B (en) | Ionic mobility spectrometer semipermeable membrane pre-enrichment sample injection method and apparatus thereof | |
| CN201289467Y (en) | Device for testing heat dispersion of radiator surface | |
| CN203443949U (en) | System for detecting formaldehyde emission amount with analytical method | |
| CN204027889U (en) | On-line gas analysis sample gas pre-service integrating device | |
| CN201716155U (en) | Sealing property detector for sealing parts | |
| CN103267720A (en) | Permeability tester | |
| CN205103104U (en) | High temperature high pressure rock triaxial apparatus | |
| CN101118215A (en) | Non-dispersed infra-red spectrometry method suitable for wide environmental temperature range | |
| CN205449849U (en) | Online moisture in steam measures and calibration system | |
| CN202256134U (en) | Infrared analysis meter | |
| CN205229042U (en) | Portable normal position UV spectrum flue gas analyzer | |
| CN208366374U (en) | A kind of drying machine performance testing device | |
| CN105424754A (en) | Intelligent home formaldehyde concentration detection system based on radio frequency recognition | |
| CN203231959U (en) | Electric grid material and coating corrosion acceleration test device with automatic temperature-humidity control | |
| CN105301054A (en) | Indoor formaldehyde concentration detection system based on radio frequency identification commutating and voltage-stabilizing circuit | |
| CN206505053U (en) | Directly heat capillary chromatography column device and the post case with the device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |