CN205925114U - Oxidation graphite alkene suction filter device - Google Patents
Oxidation graphite alkene suction filter device Download PDFInfo
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- CN205925114U CN205925114U CN201620683417.7U CN201620683417U CN205925114U CN 205925114 U CN205925114 U CN 205925114U CN 201620683417 U CN201620683417 U CN 201620683417U CN 205925114 U CN205925114 U CN 205925114U
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- bottle
- liquid level
- suction filtration
- level gauge
- micropump
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Abstract
The utility model discloses an oxidation graphite alkene suction filter device. The funnel links to each other with buchner flask's bottleneck among this oxidation graphite alkene suction filter device, and buchner flask's last mouth export links to each other with the vacuum pump, and the quarrel edge of funnel is provided with two feed inlets, and first feed inlet passes through the pipeline and links to each other with hydrochloric acid container bottle, and the second feed inlet passes through the pipeline and links to each other with deionized water container bottle, and deionized water container bottle links to each other with the delivery port of ultrapure water appearance, set gradually a flow control valve and first micropump between first feed inlet and the hydrochloric acid container bottle, set gradually the 2nd flow control valve and second micropump between second feed inlet and the deionized water container bottle, first level gauge setting is at the first feed inlet of funnel, and the second level gauge is located deionized water container bottle, the pH meter sets up the second feed inlet at the funnel, first, second micropump, first, the 2nd flow control valve, vacuum pump, first level gauge, second level gauge, pH meter and ultrapure water appearance respectively with the computer link.
Description
Technical field
The utility model belongs to field of nano material preparation, is related to a kind of Suction filtration device, more particularly, to a kind of graphite oxide
Alkene Suction filtration device.
Background technology
Since the nineties in last century, due to fullerene（Fullerene）With CNT（Carbon nanotubes,
CNTs）Appearance, well known DIC chemistry enters a new developing period.The rapid emergence of nanosecond science and technology makes
Carbon nanomaterial becomes emerging field of scientific study.The excellent physical chemistry that zero dimension and one-dimensional carbon nano material possess
Matter and potential application cause the interest of scientists study two dimension carbon nanomaterial.2004, Univ Manchester UK
Physicist Novoselov and Geim, has successfully separated two-dimensional structure Graphene from graphite, has overthrown " thermodynamics fluctuation
Do not allow two dimensional crystal to be freely present under finite temperature " cognition, shaken whole physics circle, and thereby is achieved 2010
Nobel Prize in physics, from this caused Graphene research overbearing tide.And Graphene institute itself with unique properties also makes it
Become the favorite of scientific circles, show, at aspects such as the energy, biology, electronic devices, the prospect of being widely applied.
At present, three kinds of main method of Graphene are prepared（Micromechanics stripping method, epitaxial growth method and oxidizing process）In, oxidation
Method is to realize the effective ways of the extensive preparation of Graphene, and wherein, Hummers method is most common method, most of oxidation
Method is required for through suction filtration process to remove the various soluble ion impurity in graphite oxide ene product.But, due to suction filtration
Speed slower, obtain the time that pure graphene oxide typically requires several days, and the hydrochloric acid solution needed for suction filtration and go from
Sub- water consumption is larger, and the capacity of the Buchner funnel of laboratory suction filtration, container bottle and bottle,suction is less, so typically requiring artificial
Waste liquid in bottle,suction also will be poured out simultaneously, slightly not note, just by the time of control salt adding acid or deionized water and consumption in real time
The hydrochloric acid in Buchner funnel or deionized water can be led to be drained, and then filter membrane ruptures, the graphene oxide in Buchner funnel falls
Drop down onto contaminated in bottle,suction, all that has been achieved is spoiled for preparation process.
Utility model content
In view of the shortcoming of above-mentioned prior art, the purpose of this utility model is to provide a kind of graphene oxide suction filtration dress
Put, this graphene oxide Suction filtration device can automatically control the solution of suction filtration and/or the consumption of deionized water, flow and take out
Filter fly sequence.
In order to reach aforesaid utility model purpose, the utility model provides a kind of graphene oxide Suction filtration device, this oxygen
Graphite alkene Suction filtration device include funnel, bottle,suction, first flow control valve, second flow control valve, the first micropump, second
Micropump, hydrochloric acid container bottle, deionized water container bottle, vavuum pump, first liquid level gauge, second liquid level gauge, pH meter and ultra-pure water instrument；
Described funnel is connected with the bottleneck of described bottle,suction, and the upper mouth outlet of described bottle,suction is by conduit and described vacuum
Pump is connected,
The quarrel edge of described funnel is provided with two charging apertures, and wherein, first charging aperture passes through pipeline and described hydrochloric acid
Container bottle is connected, and second charging aperture is connected with described deionized water container bottle by pipeline, described deionized water container bottle and institute
The delivery port stating ultra-pure water instrument is connected；
Described first flow control valve and first micro- is set gradually between described first charging aperture and described hydrochloric acid container bottle
Type pump,
Described second flow control valve and is set gradually between described second charging aperture and described deionized water container bottle
Two micropumps；
Described first liquid level gauge is arranged on the first charging aperture of described funnel, and described second liquid level gauge is located at described deionization
In water receptacle bottle；
Described pH meter is arranged on the second charging aperture of described funnel；
Described first micropump, the second micropump, first flow control valve, second flow control valve, vavuum pump, the first liquid
Position meter, second liquid level gauge, pH meter and described ultra-pure water instrument are connected with computer respectively.
In above-mentioned graphene oxide Suction filtration device, described first liquid level gauge is set with the critical liquid level of a highest and one
Minimum critical liquid level, through the feedback of described first liquid level gauge, described collaborative computer controls described first flow to control
Rate of flow of fluid in valve and second flow control valve and the pumping speed speed of described first micropump and the second micropump, make described
In funnel, the liquid level of cleaning solution is in the critical liquid level of highest that above-mentioned first liquid level gauge sets and minimum during whole suction filtration
Between critical liquid level；Described pH meter is set with a pH value, when the cleaning solution that this pH meter records in funnel reaches the pH value of this setting
When, this road cleaning solution suction filtration EP (end of program) of described computer controls；Described vavuum pump is connected with described computer, and passes through this meter
Calculation machine controls the switch of this vavuum pump；Described second liquid level gauge is set with the critical liquid level of a highest and a minimum critical liquid level
Highly, through the feedback of described second liquid level gauge, described collaborative computer controls described ultra-pure water instrument to prepare deionized water, and defeated
Enter in described deionized water container bottle, so that the liquid level of deionized water in this deionized water container bottle is in during whole suction filtration
Between the critical liquid level of highest of above-mentioned second liquid level gauge setting and minimum critical liquid level.
In above-mentioned graphene oxide Suction filtration device, according to being actually needed, when described pH meter records washing in described funnel
When washing the pH value that liquid reaches setting, the suction filtration EP (end of program) of described this cleaning solution of computer controls, i.e. the corresponding stream of this cleaning solution
Control valve and micropump power cut-off, then carry out the suction filtration program of lower one cleaning solution；When taking out of last one cleaning solution
After filter EP (end of program), the cleaning solution liquid level in described funnel is gradually reduced, when liquid level is decreased below described first liquid level
During the minimum critical liquid level of meter setting, vavuum pump described in described computer controls is automatically switched off, and goes ultra-pure water instrument automatically to close
Close, terminate whole suction filtration program.
Above-mentioned graphene oxide Suction filtration device can automatically control suction filtration cleaning solution（Solution and/or deionized water）Use
The suction filtration program of amount, flow and each cleaning solution, and ensure during suction filtration, the cleaning solution in described funnel is always situated in institute
State more than the minimum critical liquid level of first liquid level gauge setting, the deionized water in described deionized water container bottle is always situated in described
More than the minimum critical liquid level that second liquid level gauge sets, thus effectively prevent cleaning solution in funnel and drained leading to filter membrane to break
Split, ensure simultaneously during whole suction filtration, there is deionized water always in described deionized water container bottle and constantly export, pass through
Described computer, first flow control valve, second flow control valve, the first micropump, the second micropump, first liquid level gauge,
Two liquid level gauges, the Collaborative Control of ultra-pure water instrument, vavuum pump and pH meter, it is possible to achieve the automatic suction filtration under no worker monitor, add automatically
Plus deionized water, decrease the adverse effect of manpower interference, by the protection of described dust cap moreover it is possible to reduce environment to oxidation stone
The pollution of black alkene.
In above-mentioned graphene oxide Suction filtration device, described bottle,suction can be this area routine bottle,suction.
It is preferable that described funnel is equipped with dust cap in above-mentioned graphene oxide Suction filtration device；Described dust cap covers
Quarrel in described funnel.
It is preferable that described micropump is have flow control function miniature in above-mentioned graphene oxide Suction filtration device
Pump.
It is preferable that described funnel is Buchner funnel in above-mentioned graphene oxide Suction filtration device；
Described bottle,suction is corrosion resistant bottle,suction；
Described flow control valve is corrosion resistant flow control valve；
Described micropump is corrosion resistant micropump；
Described container bottle is corrosion resistant container bottle；
Described vavuum pump includes water pump or mechanical pump.
It is preferable that described bottle,suction is high borosilicate bottle,suction in above-mentioned graphene oxide Suction filtration device；Described container bottle
For high borosilicate container bottle.
It is preferable that being provided with third liquid level gauge in described hydrochloric acid container bottle in above-mentioned graphene oxide Suction filtration device, institute
State third liquid level gauge to be connected with described computer.
In above-mentioned graphene oxide Suction filtration device, described third liquid level gauge is provided with a critical altitude, for counting salt
The consumption of acid, and feed back to described computer, when the consumption of hydrochloric acid reaches the consumption of this setting, hydrochloric acid suction filtration EP (end of program).
In above-mentioned graphene oxide Suction filtration device, the hydrochloric acid of the amount of being sufficiently loaded with described hydrochloric acid container bottle, entirely taking out
During filter, described first liquid level gauge is set with the critical liquid level of a highest and a minimum critical liquid level, through described
The feedback of first liquid level gauge, described collaborative computer controls the fluid in described first flow control valve and second flow control valve
Flow velocity and the pumping speed speed of described first micropump and the second micropump, make hydrochloric acid in described Buchner funnel or deionized water
Liquid level is between the critical liquid level of highest and the minimum critical liquid level of above-mentioned first liquid level gauge setting during whole suction filtration.
In above-mentioned graphene oxide Suction filtration device, the washing that described graphene oxide Suction filtration device first carries out hydrochloric acid is taken out
Filter, then carries out the washing suction filtration of deionized water；The consumption of this computer settings hydrochloric acid, then passes through the anti-of third liquid level gauge
Feedback, the consumption of computer real time record hydrochloric acid, when the actual amount of hydrochloric acid reaches the consumption of setting, hydrochloric acid suction filtration program is tied
Bundle, this hydrochloric acid corresponding first flow control valve and the first micropump quit work, and the hydrochloric acid liquid level in described Buchner funnel is high
Degree is gradually reduced, when liquid level is decreased below the minimum critical liquid level that described first liquid level gauge sets, by this first
The feedback of liquid level gauge, computer controls carry out the suction filtration program of lower one deionized water；According to being actually needed, described second liquid level
Meter is provided with two critical liquid levels, when the liquid level in described deionized water container bottle is higher than that this second liquid level gauge is arranged
Higher critical liquid level when, described in computer controls, ultra-pure water instrument quits work, when in described deionized water container bottle
When liquid level is less than the relatively low critical liquid level of this second liquid level gauge setting, ultra-pure water instrument preparation described in computer controls is gone
Ionized water, and input in described deionized water container bottle；Described pH meter is set with a pH value, this Bu Shi described in pH meter real-time monitoring
The pH value of deionized water in funnel, the pH value recording the deionized water in Buchner funnel when this pH meter reaches the pH value of this setting
When, this deionized water corresponding second flow control valve and the second micropump quit work, and simultaneous computer controls described ultrapure
Water instrument quits work；Deionized water liquid level in described Buchner funnel is gradually reduced, when liquid level is decreased below described
During the minimum critical liquid level that one liquid level gauge sets, by the feedback of this first liquid level gauge, vavuum pump described in computer controls
Quit work, whole suction filtration process terminates.
It is preferable that the inside of described bottle,suction is additionally provided with the 4th liquid level gauge in above-mentioned graphene oxide Suction filtration device,
Described 4th liquid level gauge is connected with described computer.
It is preferable that the body edge of described bottle,suction is apart from bottom of bottle 1/4- in above-mentioned graphene oxide Suction filtration device
Mouth outlet once is set at 1/3 bottle height, and described lower mouth outlet is provided with valve.
It is preferable that the valve of described lower mouth outlet is electrically operated valve in above-mentioned graphene oxide Suction filtration device；Described electricity
Movable valve is connected with described computer respectively.
In above-mentioned graphene oxide Suction filtration device, described 4th liquid level gauge is provided with two critical liquid levels, works as institute
When stating the higher critical liquid level that the liquid level in bottle,suction is higher than the 4th liquid level gauge setting, electricity described in computer controls
Movable valve is opened, and bleeds off the part waste liquid in described bottle,suction, when the liquid level in described bottle,suction is less than the 4th liquid level
During the relatively low critical liquid level of meter setting, electrically operated valve described in computer controls is closed, and continues suction filtration process, by above-mentioned the
The Collaborative Control of four liquid level gauges, electrically operated valve and computer, has reached the effect discharging the waste liquid in bottle,suction in real time.
In above-mentioned graphene oxide Suction filtration device, described graphene oxide Suction filtration device applies also for washing of other samples
Wash suction filtration, the pH value of cleaning solution in the Buchner funnel according to described pH meter feedback, or container bottle is corresponded to according to this road cleaning solution
The feedback of middle liquid level gauge, the consumption of this road cleaning solution of real time record, by this road cleaning solution washing procedure of described computer controls
Start and terminate.
The graphene oxide Suction filtration device that the utility model provides, overcomes artificial in existing graphene oxide Suction filtration device
Control salt adding acid or the consumption of deionized water and the defect of time it is achieved that graphene oxide Suction filtration device automatically controls suction filtration use
Solution and/or the consumption of deionized water, the real-time discharge of flow, suction filtration program and waste liquid, can also supplement in real time simultaneously and go
Ionized water, can be simple, convenient according to being actually needed the switching carrying out multiple cleaning solution washings, saves the time cost of suction filtration
And human cost, whole suction filtration process decreases as far as possible and manually operates the error brought and impact.
Hereinafter just accompanying drawing in conjunction with the embodiments, is described in further detail to specific embodiment of the present utility model, so that this
Utility model technical scheme is more readily understood, grasps.
Brief description
Fig. 1 is the structural representation of the utility model embodiment.
Specific embodiment
Present embodiments provide a kind of graphene oxide Suction filtration device, as shown in figure 1, it includes Buchner funnel 1, dust cap
2, bottle,suction 3, first flow control valve 4, the first micropump 5, hydrochloric acid container bottle 6, second flow control valve 7, the second micropump
8, deionized water container bottle 9, water pump 10, first liquid level gauge 11, pH meter 12, second liquid level gauge 13, third liquid level gauge 14, the 4th liquid
Position meter 15, electrically operated valve 16, ultra-pure water instrument 17 and computer（Do not section out in FIG）；
Dust cap 2 covers the quarrel in Buchner funnel 1；Buchner funnel 1 is connected with the bottleneck of bottle,suction 3, bottle,suction 3 upper
Mouth outlet is connected with water pump 10 by a conduit, and the body edge of bottle,suction 3 is being provided with mouth at bottom of bottle 1/4 bottle height
Outlet, this lower mouth outlet is provided with electrically operated valve 16,
The quarrel edge of Buchner funnel 1 is provided with two charging apertures, and wherein, first charging aperture is passed through a pipeline and held with hydrochloric acid
Device bottle 6 is connected, and second charging aperture is connected with deionized water container bottle 9 by a pipeline, ionized water container bottle 9 and ultra-pure water instrument 17
Outlet be connected；
It is disposed with first flow control valve 4 and the first micropump 5 between first charging aperture and hydrochloric acid container bottle 6,
It is disposed with second flow control valve 7 and the second micropump between second charging aperture and deionized water container bottle 9
8,
First liquid level gauge 11 is arranged at first charging aperture, and pH 12 meter is arranged at second charging aperture, second liquid level gauge 13
It is arranged on the inside of deionized water container bottle 9；
Be provided with third liquid level gauge 14 in hydrochloric acid container bottle 6, bottle,suction 3 be internally provided with the 4th liquid level gauge 15,
First flow control valve 4, the first micropump 5, second flow control valve 7, the second micropump 8, water pump 10, the first liquid
Position meter 11, pH meter 12, second liquid level gauge 13, third liquid level gauge 14, the 4th liquid level gauge 15, electrically operated valve 16 and 17 points of ultra-pure water instrument
Not it is connected with computer, and controlled by computer program.
In the graphene oxide Suction filtration device that the present embodiment provides, graphene oxide Suction filtration device first carries out washing of hydrochloric acid
Wash suction filtration, then carry out the washing suction filtration of deionized water；Third liquid level gauge 14 is provided with a critical altitude, for counting hydrochloric acid
Consumption, and feed back to computer, this computer presets the consumption of hydrochloric acid, by the feedback of third liquid level gauge 14, computer
The consumption of real time record hydrochloric acid, when the actual amount of hydrochloric acid reaches the consumption of setting, hydrochloric acid suction filtration EP (end of program), this hydrochloric acid pair
The first flow control valve 4 answered and the first micropump 5 quit work, and the hydrochloric acid liquid level in Buchner funnel 1 is gradually reduced；The
One liquid level gauge 11 is set with the critical liquid level of a highest and a minimum critical liquid level, the hydrochloric acid solution in Buchner funnel 1
When face is decreased below the minimum critical liquid level of first liquid level gauge 11 setting, by the feedback of this first liquid level gauge 11, count
Calculation machine controls the suction filtration program carrying out lower one deionized water；Second liquid level gauge 13 is provided with two critical liquid levels, when going
When in ionized water container bottle 9, the liquid level of deionized water is higher than the higher critical liquid level of this second liquid level gauge 13 setting,
Computer controls ultra-pure water instrument 17 quits work, when the liquid level in deionized water container bottle 9 is less than this second liquid level gauge 13
During the relatively low critical liquid level of setting, deionized water prepared by computer controls ultra-pure water instrument 17, and inputs deionized water container
In bottle 9, by second flow control valve 7 and the second micropump 8, deionized water is extracted in Buchner funnel 1 and carries out suction filtration；PH meter
12 are set with a pH value, and the pH value of deionized water in this pH meter real-time monitoring Buchner funnel 1, when this pH meter 12 records Buchner funnel
When the pH value of the deionized water in 1 reaches the pH value of this setting, this deionized water corresponding second flow control valve 7 and second is micro-
Type pump 8 quits work, and simultaneous computer controls ultra-pure water instrument 17 to quit work；Deionized water liquid level in Buchner funnel 1
It is gradually reduced, when liquid level is decreased below the minimum critical liquid level of first liquid level gauge 11 setting, by this first liquid level
The feedback of meter 11, computer controls water pump 10 quits work, and whole suction filtration process terminates；During whole suction filtration above, the
Four liquid level gauges 15 are provided with two critical liquid levels, when the waste water liquid level height in bottle,suction 3 is higher than the 4th liquid level gauge 15
During the higher critical liquid level of setting, computer controls electrically operated valve 16 is opened, and bleeds off the part waste liquid in bottle,suction 3, when
When waste water liquid level height in bottle,suction 3 is less than the relatively low critical liquid level of the 4th liquid level gauge 15 setting, computer controls
Electrically operated valve 16 is closed, and continues suction filtration process, by the collaborative control of above-mentioned 4th liquid level gauge 15, electrically operated valve 16 and computer
System, can reach the effect discharging the waste liquid in bottle,suction in real time.
The graphene oxide Suction filtration device that the present embodiment provides, overcomes people's industry control in existing graphene oxide Suction filtration device
Salt adding acid processed or the consumption of deionized water and the defect of time are it is achieved that graphene oxide Suction filtration device automatically controls suction filtration
The real-time discharge of the consumption of solution and/or deionized water, flow, suction filtration program and waste liquid, can also supplement in real time simultaneously go from
Sub- water, can be simple, convenient according to being actually needed the switching carrying out multiple cleaning solution washings, save suction filtration time cost and
Human cost, whole suction filtration process decreases as far as possible and manually operates the error brought and impact.
All technology that the utility model still has numerous embodiments, all employing equivalents or equivalent transformation and formed
Scheme, all falls within protection domain of the present utility model.
Claims (9)
1. a kind of graphene oxide Suction filtration device it is characterised in that：Described graphene oxide Suction filtration device includes funnel, suction filtration
Bottle, first flow control valve, second flow control valve, the first micropump, the second micropump, hydrochloric acid container bottle, the deionization water capacity
Device bottle, vavuum pump, first liquid level gauge, second liquid level gauge, pH meter and ultra-pure water instrument；
Described funnel is connected with the bottleneck of described bottle,suction, and conduit and described vavuum pump phase are passed through in the upper mouth outlet of described bottle,suction
Even,
The quarrel edge of described funnel is provided with two charging apertures, and wherein, first charging aperture passes through pipeline and described hydrochloric acid container
Bottle is connected, and second charging aperture is connected with described deionized water container bottle by pipeline, and described deionized water container bottle is super with described
The delivery port of pure water meter is connected；
Described first flow control valve and the first micropump is set gradually between described first charging aperture and described hydrochloric acid container bottle,
Described second flow control valve and second micro- is set gradually between described second charging aperture and described deionized water container bottle
Type pump；
Described first liquid level gauge is arranged on the first charging aperture of described funnel, and described second liquid level gauge is located at the described deionization water capacity
In device bottle；
Described pH meter is arranged on the second charging aperture of described funnel；
Described first micropump, the second micropump, first flow control valve, second flow control valve, vavuum pump, the first liquid level
Meter, second liquid level gauge, pH meter and described ultra-pure water instrument are connected with computer respectively.
2. graphene oxide Suction filtration device according to claim 1 it is characterised in that：Described funnel is equipped with dust cap；
Described dust cap covers the quarrel in described funnel.
3. graphene oxide Suction filtration device according to claim 1 it is characterised in that：Described micropump is to have flow control
The micropump of function processed.
4. graphene oxide Suction filtration device according to claim 1 it is characterised in that：Described funnel is Buchner funnel；
Described bottle,suction is corrosion resistant bottle,suction；
Described flow control valve is corrosion resistant flow control valve；
Described micropump is corrosion resistant micropump；
Described container bottle is corrosion resistant container bottle；
Described vavuum pump includes water pump or mechanical pump.
5. graphene oxide Suction filtration device according to claim 1 it is characterised in that：Described bottle,suction is high borosilicate suction filtration
Bottle；Described container bottle is high borosilicate container bottle.
6. graphene oxide Suction filtration device according to claim 1 it is characterised in that：It is provided with described hydrochloric acid container bottle
Third liquid level gauge, described third liquid level gauge is connected with described computer.
7. graphene oxide Suction filtration device according to claim 1 it is characterised in that：The inside of described bottle,suction also sets up
There is the 4th liquid level gauge, described 4th liquid level gauge is connected with described computer.
8. graphene oxide Suction filtration device according to claim 7 it is characterised in that：The body edge of described bottle,suction exists
Mouth outlet once is set at the bottle height of bottom of bottle 1/4-1/3, and described lower mouth outlet is provided with valve.
9. graphene oxide Suction filtration device according to claim 8 it is characterised in that：The valve of described lower mouth outlet is electricity
Movable valve；
Described electrically operated valve is connected with described computer respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620683417.7U CN205925114U (en) | 2016-07-03 | 2016-07-03 | Oxidation graphite alkene suction filter device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620683417.7U CN205925114U (en) | 2016-07-03 | 2016-07-03 | Oxidation graphite alkene suction filter device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205925114U true CN205925114U (en) | 2017-02-08 |
Family
ID=57931281
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620683417.7U Expired - Fee Related CN205925114U (en) | 2016-07-03 | 2016-07-03 | Oxidation graphite alkene suction filter device |
Country Status (1)
| Country | Link |
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| CN (1) | CN205925114U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105920895A (en) * | 2016-07-03 | 2016-09-07 | 肖雄 | Graphene oxide suction filtration device |
| CN107219266A (en) * | 2017-05-17 | 2017-09-29 | 国网天津市电力公司 | A kind of quick equivalent salt density, grey close detection means |
| CN113075341A (en) * | 2021-03-23 | 2021-07-06 | 宁夏计量质量检验检测研究院 | Method and device for continuous liquid supply of liquid chromatograph |
-
2016
- 2016-07-03 CN CN201620683417.7U patent/CN205925114U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105920895A (en) * | 2016-07-03 | 2016-09-07 | 肖雄 | Graphene oxide suction filtration device |
| CN107219266A (en) * | 2017-05-17 | 2017-09-29 | 国网天津市电力公司 | A kind of quick equivalent salt density, grey close detection means |
| CN113075341A (en) * | 2021-03-23 | 2021-07-06 | 宁夏计量质量检验检测研究院 | Method and device for continuous liquid supply of liquid chromatograph |
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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 |
Granted publication date: 20170208 Termination date: 20170703 |
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| CF01 | Termination of patent right due to non-payment of annual fee |