CN209117617U - A kind of measurement device of graphene oxide solution concentration - Google Patents
A kind of measurement device of graphene oxide solution concentration Download PDFInfo
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- CN209117617U CN209117617U CN201821572203.8U CN201821572203U CN209117617U CN 209117617 U CN209117617 U CN 209117617U CN 201821572203 U CN201821572203 U CN 201821572203U CN 209117617 U CN209117617 U CN 209117617U
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- detection container
- graphene oxide
- oxide solution
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- solution concentration
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Abstract
The utility model relates to chemical analysis technology fields, and in particular to a kind of measurement device of graphene oxide solution concentration comprising: detection container, upper part are provided with inlet；Solenoid valve one is provided on inlet；The lower part of detection container is provided with leakage fluid dram；Solenoid valve two is provided on leakage fluid dram；Rabbling mechanism is arranged in detection container；Temperature control mechanism is arranged in detection container；The conductivity value in detection container, for graphene oxide solution to be measured is arranged in conductivity meter；Liquidometer is provided in detection container；Thermometer is provided in detection container；Data processing unit is electrically connected with solenoid valve one, solenoid valve two, conductivity meter, liquidometer, temperature control mechanism and thermometer respectively, with acquisition, analysis and saves data, and execute instruction to the transmission of solenoid valve one, solenoid valve two and temperature control mechanism.The efficiency of measurement graphene oxide solution concentration is able to ascend using the utility model, and cost is relatively low.
Description
Technical field
The utility model relates to a kind of measurement of chemical analysis technology field more particularly to graphene oxide solution concentration dresses
It sets.
Background technique
Currently, the measurement of graphene oxide solution concentration is all made of UV-VIS spectrophotometry.Stone is aoxidized in this method
A significant characteristic absorption peak is presented in the uv-vis spectra of black alkene solution at 230nm, and the intensity of absorption peak is with oxygen
The reduction of graphite alkene concentration and gradually weaken, according to one Beer law of lambert, when cuvette is identical, extinction material aoxidize stone
The concentration of black alkene is directly proportional to absorbance.Using the relationship of its concentration and absorbance, then it can be used UV-vis spectroscopy meter to oxidation
Graphene solution concentration is measured.
The concrete operation step of graphene oxide solution concentration mensuration are as follows: manual sampling, by pretreatment (for highly concentrated
Degree, highly viscous graphene oxide solution dilution processing), it moves into absorption vessel, reference pair ratio, Yu Bochang is made with blank solution
At 230nm, its absorbance value is surveyed with ultraviolet-visible spectrophotometer, from absorbance value and graphene oxide relation with contents curve
Corresponding graphene oxide concentration is found on figure.It is not only lower to the determination efficiency of graphene oxide solution concentration during this,
And ultraviolet-visible spectrophotometer price is higher, promotes testing cost.
Utility model content
In view of this, the present invention provides a kind of measurement device of graphene oxide solution concentration, main purpose is
The efficiency of measurement graphene oxide solution concentration is promoted, and cost is relatively low.
In order to achieve the above objectives, the utility model mainly provides the following technical solutions:
The embodiments of the present invention provide a kind of measurement device of graphene oxide solution concentration, comprising: detection container,
Rabbling mechanism, temperature control mechanism, conductivity meter and data processing unit；
The top of the detection container is provided with inlet；Solenoid valve one is provided on the inlet, for controlling
State the on-off of inlet；
The lower part of the detection container is provided with leakage fluid dram；Solenoid valve two is provided on the leakage fluid dram, for controlling
State the on-off of leakage fluid dram；
The rabbling mechanism is arranged in the detection container；Rabbling mechanism rotation is for will be in the detection container
Solution stir evenly；
The temperature control mechanism is arranged in the detection container, for controlling the temperature of the detection container；
The conductivity meter is arranged in the detection container, for detecting graphene oxide to be measured in the detection container
The conductivity value of solution；
It is provided with liquidometer in the detection container, for detecting the liquid level of solution in the detection container；
It is provided with thermometer in the detection container, for detecting the temperature in the detection container；
The data processing unit respectively with the solenoid valve one, the solenoid valve two, the conductivity meter, the liquid level
Meter, the temperature control mechanism and thermometer electrical connection with acquisition, analysis and save data, and to the solenoid valve one, described
Solenoid valve two and temperature control mechanism transmission execute instruction.
Further, muff is provided in the detection container.
Further, the top of the detection container is cylindrical shape；The lower part of the detection container is pyramidal structure.
Further, the detection container is double-layer structure；The liner of the detection container is embedded in the detection container
Outer wall in.
Further, further includes: flushing machine；
The flushing machine is arranged in the detection container, for rinsing the electrode probe of the conductivity meter.
Further, the liquid level is calculated as capacitance level gauge.
Further, the temperature control mechanism includes: the chamber and liquid flow port for being enclosed in the detection container periphery；
The chamber is fixedly fitted on the outer wall of the detection container；
The liquid flow port is arranged on the chamber, and the chamber, the liquid for preset temperature into
Out.
Further, the outer wall of the detection container is stainless steel material；
The liner of the detection container is polytetrafluoroethylene (PTFE) material.
Further, the rabbling mechanism includes: drive shaft and blade；
The drive shaft is rotatably arranged in the detection container；The drive shaft and the detection container are coaxial
Setting；
The blade is fixedly provided in the drive shaft.
Further, the drive shaft is Buddhist nun's human relations material；
The blade is Buddhist nun's human relations material.
By above-mentioned technical proposal, the measurement device of the utility model graphene oxide solution concentration at least has following excellent
Point:
It is able to ascend the efficiency of measurement graphene oxide solution concentration, and cost is relatively low.
The above description is merely an outline of the technical solution of the present invention, in order to better understand the skill of the utility model
Art means, and can be implemented in accordance with the contents of the specification, below on the preferred embodiment of the present invention and the accompanying drawings in detail
It describes in detail bright as after.
Detailed description of the invention
Fig. 1 is a kind of schematic diagram of the measurement device of graphene oxide solution concentration provided by the embodiment of the utility model；
Fig. 2 is the graphite oxide that the measurement device of graphene oxide solution concentration provided by the embodiment of the utility model measures
The standard curve of the corresponding conductivity value of alkene concentration of standard solution.
It is as shown in the figure:
1 is detection container, and 1-1 is inlet, and 1-2 is overflow port, and 1-3 is leakage fluid dram, and 1-4 is sewage draining exit, and 2 be blender
Structure, 3 be temperature control mechanism, and 4 be conductivity meter, and 5 be data processing unit, and 6 be thermometer, and 7 be liquidometer.
Specific embodiment
Further to illustrate that the utility model is the technical means and efficacy reaching predetermined purpose of utility model and being taken,
Below in conjunction with attached drawing and preferred embodiment, to specific embodiment, structure, feature and its function according to the present utility model application
Effect, detailed description is as follows.In the following description, what different " embodiment " or " embodiment " referred to is not necessarily same implementation
Example.In addition, the special characteristic, structure or feature in one or more embodiments can be combined by any suitable form.
With reference to Fig. 1, the embodiments of the present invention provide a kind of measurement device of graphene oxide solution concentration, comprising:
Detection container 1, rabbling mechanism 2, temperature control mechanism 3, conductivity meter 4 and data processing unit 5；
The top of detection container 1 is provided with inlet 1-1；Solenoid valve one is provided on inlet 1-1, for controlling feed liquor
The on-off of mouth 1-1；Inlet 1-1 can be connected to production flow line, to sample carry out concentration mensuration at any time；The lower part of detection container 1
It is provided with leakage fluid dram 1-3；Solenoid valve two is provided on leakage fluid dram 1-3, for controlling the on-off of leakage fluid dram 1-3；Leakage fluid dram 1-3 can
It is connected to production flow line, production flow line is discharged into the solution that will test.Overflow port 1-2 is provided in detection container 1, for out
Existing abnormal conditions, data processing unit 5 enable overflow port 1-2, realize the solution outflow in detection container 1.Rabbling mechanism 2 is set
It sets in detection container 1；The rotation of rabbling mechanism 2 is stirred evenly for will test the solution in container 1；So that measurement is accurate.Temperature
It controls mechanism 3 to be arranged in detection container 1, for controlling the temperature of detection container 1；Conductivity value by solution temperature influenced compared with
Greatly, the utility model embodiment provides a kind of measurement device of graphene oxide solution concentration, is held by 3 pairs of detections of temperature control mechanism
The processing of 1 constant temperature of device, guarantees the accuracy of detection.Conductivity meter 4 be arranged in detection container 1, for detect in detection container 1 to
The conductivity value of graphene oxide solution is surveyed, and is transmitted to data processing unit 5 to the data of detection；It is arranged in detection container 1
There is liquidometer 7, for detecting the liquid level of solution in detection container 1；In order to control the liquid level of solution in detection container 1；Detection
Thermometer 6 is provided on container 1, for detecting the temperature in detection container 1, in order to monitoring temperature, convenient for detection container 1
Interior temperature is adjusted.Data processing unit 5 respectively with solenoid valve one, solenoid valve two, conductivity meter 4, liquidometer 7, temperature control
Mechanism 3 and thermometer 6 are electrically connected, and with acquisition, analysis and save data, and send out to solenoid valve one, solenoid valve two and temperature control mechanism 3
It send and executes instruction.
The embodiments of the present invention provide a kind of measurement device of graphene oxide solution concentration, simple to structure, at
This is lower, easy to maintain, and may be implemented in graphene oxide solution production line on-line checking, can be on real-time detection production line
The concentration of graphene oxide solution, it is easy to operate, and equipment cost is low, reduces testing cost, is suitable for industrialized production.
As the preferred of above-described embodiment, it is provided with muff in detection container 1, to keep the temperature in detection container 1,
Reduce detection container 1 is influenced by variation of ambient temperature.
As the preferred of above-described embodiment, the top of detection container 1 is cylindrical shape；The lower part of detection container 1 is taper knot
Structure.Further preferably, detection container 1 is double-layer structure；The liner of detection container 1 is embedded in the outer wall of detection container 1.Into one
Preferably, the outer wall of detection container 1 is stainless steel material to step；The liner of detection container 1 is polytetrafluoroethylene (PTFE) material, with antiacid
Alkali resistant resists the characteristics of various organic solvents, is practically insoluble in all solvents.Meanwhile polytetrafluoroethylene (PTFE) has spy resistant to high temperature
Point, its coefficient of friction is extremely low, so also becoming the ideal coating of water pipe internal layer easy to clean after can making lubricating action.
As the preferred of above-described embodiment, further includes: flushing machine；Flushing machine is arranged in detection container 1, for rushing
Wash the electrode probe of conductivity meter 4.The bottom of detection container 1 is provided with sewage draining exit 1-4；For discharging the dirt of cleaning electrode probe
Water.
As the preferred of above-described embodiment, liquidometer 7 is capacitance level gauge.
As the preferred of above-described embodiment, temperature control mechanism 3 includes: the chamber and liquid flow for being enclosed in 1 periphery of detection container
Port；Chamber is fixedly fitted on the outer wall of detection container 1；Liquid flow port is arranged on chamber, with chamber, is used for
The disengaging of the liquid of preset temperature.
As the preferred of above-described embodiment, rabbling mechanism 2 includes: drive shaft and blade；
Drive shaft is rotatably arranged in detection container 1；Drive shaft and detection container 1 are coaxially disposed；Blade is fixed
Ground is arranged on the driving shaft, to stir the solution in detection container.
As the preferred of above-described embodiment, drive shaft is Buddhist nun's human relations material；Blade is Buddhist nun's human relations material, corrosion-resistant and non-conductive,
Avoid the influence to measurement result.
The embodiments of the present invention provide a kind of measuring method of the measurement device of graphene oxide solution concentration, such as
Under:
1) graphene oxide solution of different quality concentration is prepared；Graphene oxide solution concentration is 0.05g/L~8.0g/
L；
2) graphene oxide solution constant temperature is handled；
3) conductivity value that the graphene oxide solution of known different quality concentration is measured with conductivity meter, according to known
The corresponding relationship of different quality concentration graphene oxide solution and its conductivity value establishes the concentration standard of graphene oxide solution
Curve；With reference to Fig. 2.
The production method of conductivity value and the canonical plotting of graphene oxide solution concentration are as follows: be by mass concentration
The standard reserving solution of the graphene oxide of 8.0g/L is configured to mass concentration and is followed successively by 0.0g/L, 1.0g/L, 2.0g/L, 3.0g/
L, the standard solution of the graphene oxide of 4.0g/L, 5.0g/L and 6.0g/L measures above-mentioned oxidation stone using online conductivity meter
Conductivity value corresponding to black alkene standard solution, then with conductivity value corresponding to graphene oxide standard solution for horizontal seat
Mark, using the concentration of graphene oxide standard solution as ordinate, makes canonical plotting.Graphene oxide solution concentration exists
In the range of 0.05g/L~8.0g/L, linear relationship is good, linear equation y=0.0032x-0.0165, and related coefficient is
R2=0.9998.Wherein, R2For square of related coefficient, R2Closer to 1, linear relationship is better, and experiment shows the utility model
The linear relationship of the standard curve of offer is preferable.In formula: y is graphene oxide solution concentration (g/L) in sample；X is in sample
Graphene oxide solution conductivity value (μ s/cm)；It brings graphene oxide solution conductivity value into aforesaid equation to calculate, obtain
Graphene oxide solution concentration indicates (g/L) with mass concentration.
4) conductivity value of graphene oxide solution to be measured is measured with conductivity meter；According to concentration standard curve obtain oxygen
The concentration of graphite alkene.Graphene oxide solution to be measured needs constant temperature to handle before the assay.
Using respective function relationship existing between graphene oxide solution conductivity and its concentration, by measuring conductivity
Solution concentration is obtained indirectly, to realize graphene oxide content in quick, sensitive, accurate live on-line checking solution, in time
Instruct industrialized production.
Good linear relationship is presented in graphene oxide solution concentration and electrical conductivity of solution value, only needs to survey in actual test
Conductivity value in solution to be measured is tried, graphene oxide concentration in solution can be calculated by standard curve.It is also applied for aoxidizing
The test of graphene dispersion degree in water dispersant, for evaluate graphene oxide dispersion degree provide genuine and believable data according to
According to.
The embodiments of the present invention provide a kind of measurement device of graphene oxide solution concentration, are able to ascend measurement oxygen
The efficiency of graphite alkene solution concentration, and cost is relatively low, can instruct industrialized production in time.
A kind of accuracy of the measurement device of graphene oxide solution concentration provided by the utility model is by opposite mistake
Difference is evaluated.Relative error analysis: separately take the graphene oxide solution of unknown concentration as experimental comparison group, pretreatment
Afterwards, using ultraviolet-uisible spectrophotometer after 230nm wavelength measures its absorbance, graphene oxide solution concentration is calculated
True value.
The calculation formula of relative error are as follows:
Relative error (E)=∣ measured value (y)-true value (T) ∣/true value (T) × 100%；
First group: the measurement of graphene oxide concentration of slurry
After the graphene oxide slurries constant temperature of unknown concentration is handled, its conductivity value is measured with conductivity meter, further according to
Standard curve obtains graphene oxide concentration of slurry, then the measured value (y) of the graphene oxide concentration of slurry is 1.136g/L.
Identical prepare liquid is separately taken, after pretreatment, its suction is measured in λ=230nm wavelength using ultraviolet-visible photometer
Shading value, the true value (T) for obtaining graphene oxide concentration of slurry is 1.121g/L.
Second group: the measurement of graphene oxide concentration of slurry
After the graphene oxide slurries constant temperature of unknown concentration is handled, its conductivity value is measured with conductivity meter, further according to
Standard curve obtains graphene oxide concentration of slurry, then the measured value (y) of the graphene oxide concentration of slurry is 4.108g/L.
The graphene oxide slurries for separately taking identical unknown concentration, after pretreatment, using ultraviolet-visible photometer λ=
After 230nm wavelength measures its absorbance, the true value (T) for calculating graphene oxide concentration of slurry is 4.133g/L.
Third group: the measurement of graphene oxide concentration of slurry
After the graphene oxide slurries constant temperature of unknown concentration to be measured is handled, its conductivity value is measured with conductivity meter, then
Graphene oxide concentration of slurry is obtained according to standard curve, then the measured value (y) of the graphene oxide concentration of slurry is 7.035g/
L。
The graphene oxide slurries for separately taking identical unknown concentration, after pretreatment, using ultraviolet-visible photometer λ=
230nm wavelength measures its absorbance value, and the true value (T) for calculating graphene oxide concentration of slurry is 7.010g/L.
Relative error magnitudes are shown in Table 1:
1 relative error value comparison table of table
Above-mentioned test proves, the online Concentration Testing of measurement device of graphene oxide solution concentration provided by the utility model
When it is almost the same with offline determined by ultraviolet spectrophotometry graphene oxide concentration of slurry result, accuracy with higher is complete
It is suitable for industrialized production entirely.
It further illustrates, although terms first, second etc. can be used for describing various elements herein, these arts
Language should in no way limit these elements.These terms are only used to distinguish an element and another element.For example, first element can be by
Referred to as second element, also, similarly, second element can be referred to as first element, and these terms are only used to distinguish a member
Part and another element.Without departing from the range of exemplary embodiment.Similarly, element one, element two also not representation element
Sequentially, these terms are only used to distinguish an element and another element.As used herein, term "and/or" includes one or more
A associated any combination for listing project and all combinations.
The above descriptions are merely preferred embodiments of the present invention, not makees in any form to the utility model
Limitation, any simple modification, equivalent change and modification made by the above technical examples according to the technical essence of the present invention,
It is still within the scope of the technical solutions of the present invention.
Claims (10)
1. a kind of measurement device of graphene oxide solution concentration characterized by comprising detection container, rabbling mechanism, temperature control
Mechanism, conductivity meter and data processing unit；
The top of the detection container is provided with inlet；Solenoid valve one is provided on the inlet, for control it is described into
The on-off of liquid mouth；
The lower part of the detection container is provided with leakage fluid dram；Solenoid valve two is provided on the leakage fluid dram, for controlling the row
The on-off of liquid mouth；
The rabbling mechanism is arranged in the detection container；Rabbling mechanism rotation is for will be molten in the detection container
Liquid stirs evenly；
The temperature control mechanism is arranged in the detection container, for controlling the temperature of the detection container；
The conductivity meter is arranged in the detection container, for detecting graphene oxide solution to be measured in the detection container
Conductivity value；
It is provided with liquidometer in the detection container, for detecting the liquid level of solution in the detection container；
It is provided with thermometer in the detection container, for detecting the temperature in the detection container；
The data processing unit respectively with the solenoid valve one, the solenoid valve two, the conductivity meter, the liquidometer,
The temperature control mechanism and thermometer electrical connection, with acquisition, analysis and save data, and to the solenoid valve one, the electricity
Magnet valve two and temperature control mechanism transmission execute instruction.
2. the measurement device of graphene oxide solution concentration according to claim 1, which is characterized in that
Muff is provided in the detection container.
3. the measurement device of graphene oxide solution concentration according to claim 1, which is characterized in that
The top of the detection container is cylindrical shape；The lower part of the detection container is pyramidal structure.
4. the measurement device of graphene oxide solution concentration according to claim 1, which is characterized in that
The detection container is double-layer structure；The liner of the detection container is embedded in the outer wall of the detection container.
5. the measurement device of graphene oxide solution concentration according to claim 1, which is characterized in that further include: it rinses
Mechanism；
The flushing machine is arranged in the detection container, for rinsing the electrode probe of the conductivity meter.
6. the measurement device of graphene oxide solution concentration according to claim 5, which is characterized in that
The liquid level is calculated as capacitance level gauge.
7. the measurement device of graphene oxide solution concentration according to claim 1, which is characterized in that
The temperature control mechanism includes: the chamber and liquid flow port for being enclosed in the detection container periphery；
The chamber is fixedly fitted on the outer wall of the detection container；
The liquid flow port is arranged on the chamber, with the chamber, the disengaging of the liquid for preset temperature.
8. the measurement device of graphene oxide solution concentration according to claim 4, which is characterized in that
The outer wall of the detection container is stainless steel material；
The liner of the detection container is polytetrafluoroethylene (PTFE) material.
9. the measurement device of graphene oxide solution concentration according to claim 3, which is characterized in that
The rabbling mechanism includes: drive shaft and blade；
The drive shaft is rotatably arranged in the detection container；The drive shaft is coaxially set with the detection container
It sets；
The blade is fixedly provided in the drive shaft.
10. the measurement device of graphene oxide solution concentration according to claim 9, which is characterized in that
The drive shaft is Buddhist nun's human relations material；
The blade is Buddhist nun's human relations material.
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| CN201821572203.8U CN209117617U (en) | 2018-09-26 | 2018-09-26 | A kind of measurement device of graphene oxide solution concentration |
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| CN201821572203.8U CN209117617U (en) | 2018-09-26 | 2018-09-26 | A kind of measurement device of graphene oxide solution concentration |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108982596A (en) * | 2018-09-26 | 2018-12-11 | 新疆烯金石墨烯科技有限公司 | A kind of measuring method and device of graphene oxide solution concentration |
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2018
- 2018-09-26 CN CN201821572203.8U patent/CN209117617U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108982596A (en) * | 2018-09-26 | 2018-12-11 | 新疆烯金石墨烯科技有限公司 | A kind of measuring method and device of graphene oxide solution concentration |
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