CN206020360U - A kind of constant-current titration system - Google Patents
A kind of constant-current titration system Download PDFInfo
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- CN206020360U CN206020360U CN201620987294.6U CN201620987294U CN206020360U CN 206020360 U CN206020360 U CN 206020360U CN 201620987294 U CN201620987294 U CN 201620987294U CN 206020360 U CN206020360 U CN 206020360U
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Abstract
The utility model discloses a kind of constant-current titration system, belongs to titrimetry instrument technical field, constant-current titration system includes：At least one titration module, is connected by pipeline between titration module and titration cell；At least one stirring lifting module, for when parallel burette test is carried out, implementing stirring to titration cell, and drives the instruction/reference electrode for loading thereon to stretch into titration cell by elevating movement；At least one instruction/reference electrode, for measuring test value during parallel burette test；Titration cell, is loaded on sample injection disc；Sample injection disc, is connected with rotary module；Rotary module, for driving sample injection disc to be rotated；Constant-current titration control device, for controlling the operation of titration module, stirring lifting module, instruction/reference electrode and rotary module.This utility model has the advantages that high degree of automation, test repeatability are good and test accuracy is high.
Description
Technical field
This utility model is related to titrimetry instrument technical field, and in particular to a kind of constant-current titration system.
Background technology
Potentiometric titrimeter is a kind of common analytical instrument for volumetric analysiss according to potentiometry principle design, its principle
It is to constitute a working battery from appropriate indicating electrode and reference electrode with detected solution, with the addition of titrant, by
In there is chemical reaction, constantly being changed by the concentration of measured ion, thus the current potential of indicating electrode changes therewith.In titration eventually
Near point, tested ion concentration is undergone mutation, and causes the hop of electrode potential, and therefore, the hop according to electrode potential can determine that
Titration end-point.Traditional potentiometric titrimeter is made up of titration system and electricity meter two large divisions, and the generally existing course of work is complicated, intelligence
Can and automaticity is high, repeated low defect.Due to the parameter of EXPERIMENTAL DESIGN more, different user even same user
When determining with portion sample, discrepant Dependence Results can be obtained due to the setting of parameter or the impact of time.
Utility model content
Therefore, this utility model embodiment technical problem to be solved is potentiometric titrimeter automatization of the prior art
Degree is not high, repeatability is low；And solve the problems, such as that potentiometric titrimeter of the prior art can not be while process multiple samples.
For this purpose, a kind of constant-current titration control method of this utility model embodiment, comprises the following steps：
Obtain parallel burette test number；
Judge parallel burette test number whether less than or equal to threshold value；
When parallel burette test number is less than or equal to threshold value, control rotary module drives sample injection disc to rotate, and will be loaded in
Operating position is delivered to the titration cell of parallel burette test number respective number on sample injection disc；
Control carries out parameter configuration with the titration module of parallel burette test number respective number, makes to match somebody with somebody with identical parameter
Put；
The titration module that control has been configured carries out parallel burette test to the titration cell for delivering to operating position.
Preferably, the parameter includes：Instruction/reference electrode sample rate, instruction/reference electrode equilibrium potential, instruction/ginseng
Than electrode equilibration time, stirring lifting module mixing speed, titration fltting speed and titration volumes.
Preferably, further comprising the steps of：
Judge whether parallel burette test completes；
When parallel burette test is completed, control rotary module drives sample injection disc to rotate again, will be loaded on sample injection disc
Deliver to cleaning positions with the titration cell of parallel burette test number respective number, to carry out cleaning operation to titration cell.
A kind of constant-current titration control device of this utility model embodiment, including：
Acquiring unit, for obtaining parallel burette test number；
Whether the first judging unit, for judging parallel burette test number less than or equal to threshold value；
First control unit, for when parallel burette test number be less than or equal to threshold value when, control rotary module drive into
Sample dish are rotated, and will be loaded in and are delivered to operating position with the titration cell of parallel burette test number respective number on sample injection disc；
Second control unit, carries out parameter configuration for control with the titration module of parallel burette test number respective number,
Make with identical parameter configuration；
3rd control unit, the titration module configured for control carry out parallel to the titration cell for delivering to operating position
Burette test.
Preferably, the parameter includes：Instruction/reference electrode sample rate, instruction/reference electrode equilibrium potential, instruction/ginseng
Than electrode equilibration time, stirring lifting module mixing speed, titration fltting speed and titration volumes.
Preferably, also include：
Second judging unit, for judging whether parallel burette test completes；
4th control unit, for being completed when parallel burette test, control rotary module drives sample injection disc to rotate again,
To be loaded in and cleaning positions are delivered to the titration cell of parallel burette test number respective number on sample injection disc, to enter to titration cell
Row cleaning operation.
A kind of constant-current titration system of this utility model embodiment, it is characterised in that include：
At least one titration module, each titration module are connected with constant-current titration control device, titrate module and titration
Connected by pipeline between pond, reagent is sent into titration cell by pipeline by titration module；
At least one stirring lifting module, each stirring lifting module be connected with constant-current titration control device, for
When carrying out parallel burette test, implement stirring to titration cell, and the instruction/reference electricity for loading thereon is driven by elevating movement
Stretch into titration cell in pole；
At least one instruction/reference electrode, each instruction/reference electrode are connected with constant-current titration control device, are used for
Measure test value during parallel burette test；
Titration cell, is loaded on sample injection disc；
Sample injection disc, is connected with rotary module；
Rotary module, is connected with constant-current titration control device, for driving sample injection disc to be rotated；
Constant-current titration control device, for controlling titration module, stirring lifting module, instruction/reference electrode and rotating mould
The operation of block.
Preferably, the rotary module includes electric rotating machine and decelerator；
Sample injection disc is loaded on the output revolving shaft of decelerator, and electric rotating machine is connected with decelerator, for controlling sample injection disc
Rotating speed.
A kind of constant-current titration method of this utility model embodiment, comprises the following steps：
Constant-current titration control device obtains parallel burette test number；
Constant-current titration control device control rotary module is rotated, and rotary module drives sample injection disc to rotate, and will be loaded in sample introduction
Delivered to the titration cell of parallel burette test number respective number correspondingly on disk stirs the working position lifted below module
Put；
Constant-current titration control device carries out parameter configuration to titrating module, makes the drop with parallel burette test number respective number
Cover half block has identical parameter configuration；
Constant-current titration control device control stirring lifting module is lifted and stirring movement, implements stirring to titration cell,
And driving instruction/reference electrode to stretch into titration cell, instruction/reference electrode collection test value is simultaneously sent to constant-current titration control dress
Put；
Reagent is sent into titration cell by pipeline according to the state modulator for being configured by titration module.
Preferably, further comprising the steps of：
After the completion of constant-current titration control device judges parallel burette test, control titration module stops for reagent sending into titration
Pond, and control stirring lifting module stopping stirring movement and carry out elevating movement to drive instruction/reference electrode to exit titration cell；
Constant-current titration control device control rotary module is rotated, and rotary module drives sample injection disc to rotate, and will be loaded in sample introduction
Cleaning positions are delivered to correspondingly with the titration cell of parallel burette test number respective number on disk, to carry out to titration cell
Cleaning operation.
The technical scheme of this utility model embodiment, has the advantage that：
1. this utility model embodiment is provided constant-current titration control method and device, by obtaining parallel burette test
Number, can be tested according to required test number automatically, be completed titration process and Test Data Collecting, and whole process of the test is full-automatic
Change, without the need for manual intervention, when needing to carry out same sample contrast experiment's analysis, can pass through to increase parallel burette test
Number, while control two to more parallel burette tests using same parameters, in same time experiment Analysis, to reduce reality
The diversity for testing result affects, and improves the accuracy of experimental result and data analysiss, improves test repeatability and test accuracy.
2. the constant-current titration system that this utility model embodiment is provided, can be used for parallel titration, in the same time, take together
One parameter, in same environment, many by with a batch of multiple titration module sample introductions titration, effectively reducing carrying out same sample
Parameter when item is determined affects, and improves the accuracy of result of the test and data analysiss.The test of batch sample can be carried out, examination is realized
Test process full-automatic.Can automatically complete process of the test, whole reduce manual intervention, make test have good repeatability and
Experimental precision.
Description of the drawings
For the technical scheme being illustrated more clearly that in this utility model specific embodiment, below will be to specific embodiment party
Accompanying drawing to be used needed for formula description is briefly described, it should be apparent that, drawings in the following description are this utility model
Some embodiments, for those of ordinary skill in the art, on the premise of not paying creative work, can be with root
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is the flow chart of a specific example of constant-current titration control method in this utility model embodiment 1；
Fig. 2 is the theory diagram of a specific example of constant-current titration control device in this utility model embodiment 2；
Fig. 3 is the theory diagram of a specific example of constant-current titration system in this utility model embodiment 3；
Fig. 4 is the structural representation of a specific example of constant-current titration system in this utility model embodiment 3.
Reference：1- titrates module, and 11- titrates shell, and 2- titration cells, 3- stirrings lift module, and 31- lifters, 32- are stirred
Mix bar, 4- instructions/reference electrode, 5- sample injection discs, 6- rotary modules, 61- protection caps, 7- constant-current titration control devices.
Specific embodiment
The technical solution of the utility model is clearly and completely described below in conjunction with accompanying drawing, it is clear that described
Embodiment is a part of embodiment of this utility model, rather than whole embodiments.Embodiment in based on this utility model, this
The every other embodiment obtained under the premise of creative work is not made by field those of ordinary skill, belongs to this practicality
Novel protected scope.
In description of the present utility model, it should be noted that term " on ", the orientation of instruction or the position relationship such as D score
It is based on orientation shown in the drawings or position relationship, is for only for ease of description this utility model and simplifies description, rather than refer to
Show or imply that therefore the device or element of indication must can not be managed with specific orientation, with specific azimuth configuration and operation
Solution is to restriction of the present utility model.Additionally, term " first ", " second ", " the 3rd " etc. are only used for describing purpose, and can not manage
Solve as instruction or hint relative importance.Unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection " answer
It is interpreted broadly, for example, it may be being fixedly connected, or being detachably connected, or is integrally connected；Can be that machinery connects
Connect, or electrically connect；Can be joined directly together, it is also possible to be indirectly connected to by intermediary, can also be two elements
Internal connection, can be wireless connection, or wired connection.For the ordinary skill in the art, can be with
Concrete condition understands concrete meaning of the above-mentioned term in this utility model.
As long as additionally, involved technical characteristic in this utility model different embodiments disclosed below is each other
Do not constitute conflict can just be combined with each other.
Embodiment 1
The present embodiment provides a kind of constant-current titration control method, for constant-current titration system, as shown in figure 1, constant-current titration
Control method comprises the steps：
S1, the parallel burette test number of acquisition.The same time, take same parameters, in same environment, by with a batch of
Multiple titration system sample introduction titration, parameter when can effectively reduce carrying out same sample multinomial measure affect, and improve test knot
Fruit and the accuracy of data analysiss.Some special samples, can because illumination or with air slow reaction or the volatilization of itself etc.
Factor, same batch obtain sample, are placed under test room environmental, because of the sensitivity to the time, over time, the change of sample
Learn property can also change.When scientific research personnel needs to analyze these samples test, even if same batch is produced
Sample, carry out second burette test immediately after first completing a burette test, be as a result also inaccurate or complete mistake
By mistake.Parallel burette test, refer to can the same time carry out one or more than two relative analyses test, eliminate the time because
The impact of element.The test of one or more than two is carried out while parallel burette test is not simple, and it is substantially by same
One apparatus control, the Backend parameter configuration of employing, makes one of parallel titration or the test of more than two, approximately consistent
Complete to test under test parameterss, obtain comparatively ideal relative analyses result.Parallel burette test also can be by two or multiple stage machine
Complete to test simultaneously, eliminate error between time factor, but the batch of different machines, including the titration of generation is calculated automatically by machine
Volume, titration speed etc. are uncontrolled, and the experimental result of some samples can be impacted, and error is larger, can not be applied to
All of experiment sample, scope are narrower.Parallel burette test number is referred to while carrying out the number of trials of parallel titration.
S2, judge parallel burette test number whether less than or equal to threshold value.Titrate in threshold value i.e. constant-current titration system
The maximum number in pond.When parallel burette test number is less than or equal to threshold value, step S3 is entered；When parallel burette test number is more than
During threshold value, exit test or reacquire parallel burette test number.
S3, control rotary module drive sample injection disc to rotate, corresponding to parallel burette test number on sample injection disc by being loaded in
Operating position delivered to by the titration cell of number.For example, when parallel burette test number is two, then the experiment sample for having configured is put
Enter corresponding titration cell, two titration cells are delivered to operating position.When parallel burette test number is one, then by the reality for having configured
Test sample and be put into corresponding titration cell, a titration cell is delivered to operating position.
S4, control carry out parameter configuration with the titration module of parallel burette test number respective number, make to join with identical
Number configuration, wherein, parameter includes：Instruction/reference electrode sample rate, instruction/reference electrode equilibrium potential, instruction/reference electrode
Equilibration time, stirring lifting module mixing speed, titration fltting speed and titration volumes.For example, when parallel burette test number is
When two, then two titration modules are carried out parameter configuration.When parallel burette test number is one, then module is titrated by one
Carry out parameter configuration.
The titration module that S5, control have been configured carries out parallel burette test to the titration cell for delivering to operating position.Parallel
Burette test generally comprises following steps：Control stirring lifting module implements stirring, real-time reception instruction/reference electricity to titration cell
The test value of pole collection；Reagent is sent into titration cell by pipeline according to the state modulator for having configured by titration module.
Above-mentioned constant-current titration control method, by obtaining parallel burette test number, can be carried out according to required test number automatically
Test, completes titration process and Test Data Collecting, and whole process of the test is full-automatic, without the need for manual intervention, when needs are to same
When one sample carries out contrast experiment's analysis, can pass through to increase parallel burette test number, while controlling two to more parallel drops
Fixed test is affected with reducing the diversity of experimental result, improves experiment using same parameters, in same time experiment Analysis
As a result and data analysiss accuracy, improve test repeatability and test accuracy.
Preferably, constant-current titration control method is further comprising the steps of：
S6, judge whether parallel burette test completes.Specifically, the judgement can be electric by the instruction/reference for receiving
The test value of pole collection is completing.When parallel burette test is completed, step S7 is entered；When parallel burette test is not completed, then
Maintain the statusquo.
S7, control rotary module drive sample injection disc rotate again, by be loaded on sample injection disc with parallel burette test number
Cleaning positions delivered to by the titration cell of respective number, to carry out cleaning operation to titration cell.After the completion of cleaning, can also control to rotate
Sample injection disc is turned to module the operating position of next test, carries out automatically next test.
Titration cell, after completing parallel burette test, is delivered to cleaning positions by above-mentioned constant-current titration control method, is carried out
Automatically clean, further can achieve the full-automation of process of the test, reduce manually, improve test efficiency.
Embodiment 2
Embodiment 1 is corresponded to, the present embodiment provides a kind of constant-current titration control device, for constant-current titration system, such as Fig. 2
Shown, constant-current titration control device includes：
Acquiring unit 10, for obtaining parallel burette test number；
Whether the first judging unit 20, for judging parallel burette test number less than or equal to threshold value；
First control unit 30, for when parallel burette test number is less than or equal to threshold value, control rotary module drives
Sample injection disc is rotated, and will be loaded in and is delivered to operating position with the titration cell of parallel burette test number respective number on sample injection disc；
Second control unit 40, enters line parameter for control with the titration module of parallel burette test number respective number and matches somebody with somebody
Put, make with identical parameter configuration；
3rd control unit 50, puts down to the titration cell for delivering to operating position for controlling the titration module for having configured
Row burette test.
Above-mentioned constant-current titration control device, by obtaining parallel burette test number, can be carried out according to required test number automatically
Test, completes titration process and Test Data Collecting, and whole process of the test is full-automatic, without the need for manual intervention, when needs are to same
When one sample carries out contrast experiment's analysis, can pass through to increase parallel burette test number, while controlling two to more parallel drops
Fixed test is affected with reducing the diversity of experimental result, improves experiment using same parameters, in same time experiment Analysis
As a result and data analysiss accuracy, improve test repeatability and test accuracy.
Preferably, constant-current titration control device also includes：
Second judging unit, for judging whether parallel burette test completes；
4th control unit, for being completed when parallel burette test, control rotary module drives sample injection disc to rotate again,
To be loaded in and cleaning positions are delivered to the titration cell of parallel burette test number respective number on sample injection disc, to enter to titration cell
Row cleaning operation.
Titration cell, after completing parallel burette test, is delivered to cleaning positions by above-mentioned constant-current titration control device, is carried out
Automatically clean, further can achieve the full-automation of process of the test, reduce manually, improve test efficiency.
Embodiment 3
The present embodiment provides a kind of constant-current titration system, as shown in figure 3, including：Two titration modules, 1, two stirrings rise
Drop module 3, two instruction/reference electrode 4, two titration cell 2, sample injection disc 5, rotary module 6 and constant-current titration control device 7.
Each titration module 1 is connected with constant-current titration control device 7, is connected by pipeline, drip between titration module 1 and titration cell 2
Reagent is sent into titration cell 2 by pipeline by cover half block 1.Titration module 1 is installed in titration shell 11.Each stirring lifting module 3
All it is connected with constant-current titration control device 7, for when parallel burette test is carried out, implementing stirring to titration cell 2, and by rising
Drop motion drives the instruction/reference electrode 4 for loading thereon to stretch into titration cell 2.Stirring lifting module 3 includes lifter 31 and stirs
Bar 32 is mixed, puddler 32 and instruction/reference electrode 4 are all arranged on the contiguous block that can be flexibly connected with the lifting of lifter 31.Per
Individual instruction/reference electrode 4 is all connected with constant-current titration control device 7, for measuring test value during parallel burette test.Titration
Pond 2 is loaded on sample injection disc 5.Sample injection disc 5 is connected with rotary module 6.Sample injection disc 5 can be plate-like with holes, and titration cell 2 is installed
In the hole of sample injection disc 5.Sample injection disc 5 can also be using conveyer device etc..Rotary module 6 and constant-current titration control device 7
Connection, for driving sample injection disc 5 to be rotated.Protection cap 61 can also be installed above rotary module 6, prevent reagent from flowing into rotation
Module 6 causes the damage of rotary module 6.Constant-current titration control device 7 is used for controlling titration module 1, stirring lifting module 3, refers to
Show/the operation of reference electrode 4 and rotary module 6.Constant-current titration control device 7 is encapsulated in housing, can be adopted in embodiment 2
Constant-current titration control device, carries out corresponding function.
Being more than can at most while carry out the constant-current titration system of two parallel burette test numbers, as shown in figure 4, this area
It will be appreciated by the skilled person that if desired while when at most carrying out the parallel burette test number of more than three, only need to drip in current potential
Determine extension in system and titration module 1, stirring lifting module 3, instruction/reference electrode 4, the number of titration cell 2 are installed, which is simultaneously
Constant-current titration control device is linked, its quantity is more, the parallel burette test number that at most can be carried out simultaneously is more.Can most simultaneously
Carry out the constant-current titration system of two or more parallel burette test numbers more, can also carry out certainly single parallel titration examination
Test, that is, need to only control one of titration module 1, stirring lifting module 3, instruction/reference electrode 4, titration cell 2 when testing is carried out
Work.
Above-mentioned constant-current titration system, can be used for parallel titration, the same time, take same parameters, same environment, by
With a batch of multiple titration module sample introduction titration, parameter when can effectively reduce carrying out same sample multinomial measure affects,
Improve the accuracy of result of the test and data analysiss.The test of batch sample can be carried out, realizes that process of the test is full-automatic.Can be certainly
Dynamicization completes process of the test, whole minimizing manual intervention, makes test that there is good repeatability and experimental precision.
Preferably, rotary module 6 includes electric rotating machine and decelerator；Sample injection disc 5 is loaded on the output revolving shaft of decelerator,
Electric rotating machine is connected with decelerator, for controlling the rotating speed of sample injection disc 5.By being optimized to sample injection disc rotating speed using decelerator
Control, improve control accuracy.
Embodiment 4
The present embodiment provides a kind of constant-current titration method, is applied to the constant-current titration system of embodiment 3, constant-current titration method
Comprise the following steps：
W1, constant-current titration control device 7 obtain parallel burette test number；
W2, the control rotary module 6 of constant-current titration control device 7 are rotated, and rotary module 6 drives sample injection disc 5 to rotate, and will load
Delivered under stirring lifting module 3 correspondingly with the titration cell 2 of parallel burette test number respective number on sample injection disc 5
The operating position of side；
W3,7 pairs of titration modules 1 of constant-current titration control device carry out parameter configuration, make and parallel burette test number respective counts
Purpose titration module 1 has identical parameter configuration；
W4, the control stirring lifting module 3 of constant-current titration control device 7 are lifted and stirring movement, and stirring movement is to drop
Determine pond 2 and implement stirring, and drive instruction/reference electrode 4 to stretch into titration cell 2 by elevating movement, instruction/reference electrode 4 is gathered
Test value is simultaneously sent to constant-current titration control device 7；
Reagent is sent into titration cell 2 by pipeline according to the state modulator for being configured by W5, titration module 1.
Above-mentioned constant-current titration method, can be tested according to required test number automatically, be completed titration process and test data
Collection, whole process of the test are full-automatic, without the need for manual intervention, when needing to carry out same sample contrast experiment's analysis,
Can pass through to increase parallel burette test number, while controlling two to more parallel burette tests using same parameters, with for the moment
Between experiment Analysis, affected with reducing the diversity of experimental result, improve the accuracy of experimental result and data analysiss, improve
Test repeatability and test accuracy.
Preferably, constant-current titration method is further comprising the steps of：
W6, constant-current titration control device 7 judge parallel drop according to the test value of the collection of instruction/reference electrode 4 for receiving
After the completion of fixed test, control titration module 1 and stop for reagent sending into titration cell 2, and control stirring to lift the stopping stirring fortune of module 3
Move and carry out elevating movement to drive instruction/reference electrode 4 to exit titration cell 2；
W7, the control rotary module 6 of constant-current titration control device 7 are rotated, and rotary module 6 drives sample injection disc 5 to rotate, and will load
Cleaning positions are delivered to correspondingly with the titration cell 2 of parallel burette test number respective number on sample injection disc 5, with to drop
Determining pond 2 carries out cleaning operation.
After the completion of some sampling test, it is achieved that clean automatically, can be controlled by constant-current titration control device again afterwards
Sample injection disc turns to the operating position of next test, switches to next sample and is tested.Reduce artificial, raising conventional efficient.
Obviously, above-described embodiment is only intended to clearly illustrate example, and the not restriction to embodiment.Right
For those of ordinary skill in the art, can also make on the basis of the above description other multi-forms change or
Change.There is no need to be exhaustive to all of embodiment.And thus extended obvious change or
Change among the protection domain that creates still in this utility model.
Claims (2)
1. a kind of constant-current titration system, it is characterised in that include：
At least one titration module（1）, each titration module（1）All with constant-current titration control device（7）Connection, titrates module
（1）With titration cell（2）Between connected by pipeline, titrate module（1）Reagent is sent into titration cell by pipeline（2）；
At least one stirring lifting module（3）, each stirring lifting module（3）All with constant-current titration control device（7）Connection, uses
In when parallel burette test is carried out, to titration cell（2）Implement stirring, and the finger for loading thereon is driven by elevating movement
Show/reference electrode（4）Stretch into titration cell（2）；
At least one instruction/reference electrode（4）, each instruction/reference electrode（4）All with constant-current titration control device（7）Connection,
For measuring test value during parallel burette test；
Titration cell（2）, it is loaded in sample injection disc（5）On；
Sample injection disc（5）, with rotary module（6）Connection；
Rotary module（6）, with constant-current titration control device（7）Connection, for driving sample injection disc（5）Rotated；
Constant-current titration control device（7）, for controlling titration module（1）, stirring lifting module（3）, instruction/reference electrode（4）
And rotary module（6）Operation.
2. constant-current titration system according to claim 1, it is characterised in that the rotary module（6）Including electric rotating machine
And decelerator；
Sample injection disc（5）It is loaded on the output revolving shaft of decelerator, electric rotating machine is connected with decelerator, for controlling sample injection disc（5）
Rotating speed.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201620987294.6U CN206020360U (en) | 2016-08-30 | 2016-08-30 | A kind of constant-current titration system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106370777A (en) * | 2016-08-30 | 2017-02-01 | 济南海能仪器股份有限公司 | Potentiometric titration control method and device and potentiometric titration system and method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106370777A (en) * | 2016-08-30 | 2017-02-01 | 济南海能仪器股份有限公司 | Potentiometric titration control method and device and potentiometric titration system and method |
| CN106370777B (en) * | 2016-08-30 | 2018-10-02 | 济南海能仪器股份有限公司 | A kind of constant-current titration control method and device, constant-current titration system and method |
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