CN106370777B - A kind of constant-current titration control method and device, constant-current titration system and method - Google Patents
A kind of constant-current titration control method and device, constant-current titration system and method Download PDFInfo
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- CN106370777B CN106370777B CN201610760360.0A CN201610760360A CN106370777B CN 106370777 B CN106370777 B CN 106370777B CN 201610760360 A CN201610760360 A CN 201610760360A CN 106370777 B CN106370777 B CN 106370777B
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- G—PHYSICS
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N31/00—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods
- G01N31/16—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods using titration
- G01N31/162—Determining the equivalent point by means of a discontinuity
- G01N31/164—Determining the equivalent point by means of a discontinuity by electrical or electrochemical means
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N35/00—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor
- G01N35/00584—Control arrangements for automatic analysers
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Abstract
The invention discloses a kind of constant-current titration control method and device, constant-current titration system and method, belong to titrimetry instrument technical field, and wherein constant-current titration system includes：At least one titration module titrates and passes through piping connection between module and titration cell；At least one stirring lifts module, for when carrying out parallel burette test, implementing to stir to titration cell, and drive the instruction/reference electrode loaded on it to stretch into titration cell by elevating movement；At least one instruction/reference electrode, for measuring test value when parallel burette test；Titration cell is loaded on sample injection disc；Sample injection disc is connect with rotary module；Rotary module, for driving sample injection disc to be rotated；Constant-current titration control device, the operation for controlling titration module, stirring lifting module, instruction/reference electrode and rotary module.The present invention has the advantages that high degree of automation, test repeatability are good and test accuracy is high.
Description
Technical field
The present invention relates to titrimetry instrument technical fields, and in particular to a kind of constant-current titration control method and device, electricity
Position titration system and method.
Background technology
Potentiometric titrimeter is a kind of common analytical instrument for capacity analysis designed according to potentiometry principle, principle
It is that indicator electrode appropriate and reference electrode is selected to form a working battery with detected solution, with the addition of titrant, by
In chemically reacting, constantly changed by the concentration of measured ion, thus the current potential of indicator electrode changes therewith.It is whole in titration
Near point, it is tested ion concentration and mutates, cause the jumping of electrode potential, therefore, can determine according to the jumping of electrode potential
Titration end-point.Traditional potentiometric titrimeter is made of titration system and electricity meter two large divisions, generally existing course of work complexity, intelligence
Can and the degree of automation is high, the low defect of repeatability.Since the parameter of experimental design is more, different user even same user
When measuring with a sample, discrepant Dependence Results can be obtained due to the setting of parameter or the influence of time.
Invention content
Therefore, technical problems to be solved of the embodiment of the present invention are potentiometric titrimeter the degree of automation in the prior art
It is not high, repeated low；And solve the problems, such as that potentiometric titrimeter in the prior art cannot handle multiple samples simultaneously.
For this purpose, a kind of constant-current titration control method of the embodiment of the present invention, includes the following steps：
Obtain parallel burette test number；
Judge whether parallel burette test number is 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 rotation, will be loaded in
It is on sample injection disc, sent to operating position with the titration cell of parallel burette test number respective number；
It controls and carries out parameter configuration with the titration module of parallel burette test number respective number, parameter having the same is made to match
It sets；
The titration module configured is controlled to having sent the titration cell to operating position to carry out parallel 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, further comprising the steps of：
Judge whether parallel burette test is completed；
When parallel burette test is completed, control rotary module drives sample injection disc to rotate again, will be loaded on sample injection disc
, send 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 the embodiment of the present invention, including：
Acquiring unit, for obtaining parallel burette test number；
First judging unit, for judging whether parallel burette test number is 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 rotate, will be loaded in it is on sample injection disc, sent to operating position with the titration cell of parallel burette test number respective number；
Second control unit carries out parameter configuration for controlling with the titration module of parallel burette test number respective number,
Make parameter configuration having the same；
Third control unit, it is parallel to having sent the titration cell to operating position to carry out for controlling the titration module configured
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, further include：
Second judgment unit, for judging whether parallel burette test is completed；
4th control unit is completed for working as parallel burette test, and control rotary module drives sample injection disc to rotate again,
To be loaded in it is on sample injection disc, sent to cleaning positions with the titration cell of parallel burette test number respective number, with to titration cell into
Row cleaning operation.
A kind of constant-current titration system of the embodiment of the present invention, which is characterized in that including：
At least one titration module, each module that titrates are connect with constant-current titration control device, titration module and titration
Reagent is sent by titration cell by pipeline by piping connection, titration module between pond；
At least one stirring lifts module, and each stirring lifting module connect with constant-current titration control device, is used for
When carrying out parallel burette test, titration cell is implemented to stir, and drives the instruction/reference electricity loaded on it by elevating movement
Titration cell is stretched into pole；
At least one instruction/reference electrode, each instruction/reference electrode connect with constant-current titration control device, are used for
Measure test value when parallel burette test；
Titration cell is loaded on sample injection disc；
Sample injection disc is connect with rotary module；
Rotary module is connect 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 retarder；
Sample injection disc is loaded on the output revolving shaft of retarder, and electric rotating machine is connect with retarder, for controlling sample injection disc
Rotating speed.
A kind of constant-current titration method of the embodiment of the present invention, includes the following steps：
Constant-current titration control device obtains parallel burette test number；
Constant-current titration control device controls rotary module rotation, and rotary module drives sample injection disc rotation, will be loaded in sample introduction
It is on disk, with the titration cell of parallel burette test number respective number send correspondingly to stirring lifting module below working position
It sets；
Constant-current titration control device carries out parameter configuration to titration module, makes and the drop of parallel burette test number respective number
Cover half block parameter configuration having the same；
Constant-current titration control device control stirring lifting module carries out lifting and stirring movement, implements to stir to titration cell,
And instruction/reference electrode is driven to stretch into titration cell, instruction/reference electrode acquisition test value is simultaneously sent to constant-current titration control dress
It sets；
Reagent is sent into titration cell by titration module according to the state modulator configured by pipeline.
Preferably, further comprising the steps of：
After the completion of constant-current titration control device judges parallel burette test, control titration module, which stops reagent being sent into, to be titrated
Pond, and control stirring lifting module and stop stirring movement and carry out elevating movement to drive instruction/reference electrode to exit titration cell；
Constant-current titration control device controls rotary module rotation, and rotary module drives sample injection disc rotation, will be loaded in sample introduction
It is on disk, sent correspondingly to cleaning positions with the titration cell of parallel burette test number respective number, to be carried out to titration cell
Cleaning operation.
The technical solution of the embodiment of the present invention, has the following advantages that：
1. constant-current titration control method and device provided in an embodiment of the present invention can by obtaining parallel burette test number
It is tested automatically according to required experiment number, completes titration process and Test Data Collecting, entire process of testing is full-automatic, nothing
Manual intervention is needed, it, can be by increasing parallel burette test number, simultaneously when needing to carry out contrast experiment's analysis to the same sample
It controls two to more parallel burette tests and carries out experimental analysis using same parameters, in the same time, to reduce experimental result
Otherness influence, improve the accuracy of experimental result and data analysis, improve test repeatability and test accuracy.
2. constant-current titration system provided in an embodiment of the present invention, can be used for parallel titration, in the same time, same ginseng is taken
Number, in same environment, by being titrated with a batch of multiple titration module sample introductions, can effectively reduce to the multinomial survey of same sample progress
The parameter of timing influences, and improves test result and the accuracy of data analysis.The experiment of batch sample can be carried out, realization was tested
Journey is full-automatic.Experiment process can be automatically completed, whole process reduces manual intervention, and experiment is made to have good repeatability and experiment
Precision.
Description of the drawings
In order to illustrate more clearly of the technical solution in the specific embodiment of the invention, specific implementation mode will be retouched below
Attached drawing needed in stating is briefly described, it should be apparent that, the accompanying drawings in the following description is some realities of the present invention
Mode is applied, it for those of ordinary skill in the art, without creative efforts, can also be attached according to these
Figure obtains other attached drawings.
Fig. 1 is the flow chart of a specific example of constant-current titration control method in the embodiment of the present invention 1；
Fig. 2 is the functional block diagram of a specific example of constant-current titration control device in the embodiment of the present invention 2；
Fig. 3 is the functional block diagram of a specific example of constant-current titration system in the embodiment of the present invention 3；
Fig. 4 is the structural schematic diagram of a specific example of constant-current titration system in the embodiment of the present invention 3.
Reference numeral：1- titrates module, and 11- titrates shell, 2- titration cells, and 3- stirrings lift module, 31- lifters, and 32- is stirred
Mix bar, 4- instructions/reference electrode, 5- sample injection discs, 6- rotary modules, 61- protection caps, 7- constant-current titration control devices.
Specific implementation mode
Technical scheme of the present invention is clearly and completely described below in conjunction with attached drawing, it is clear that described implementation
Example is a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill
The every other embodiment that personnel are obtained without making creative work, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the orientation or positional relationship of the instructions such as term "upper", "lower" is base
It in orientation or positional relationship shown in the drawings, is merely for convenience of description of the present invention and simplification of the description, rather than indicates or imply
Signified device or element must have a particular orientation, with specific azimuth configuration and operation, therefore should not be understood as to this
The limitation of invention.In addition, term " first ", " second ", " third " etc. are used for description purposes only, and it should not be understood as instruction or dark
Show relative importance.Unless otherwise clearly defined and limited, term " installation ", " connected ", " connection " shall be understood in a broad sense, example
Such as, it may be fixed connection or may be dismantle connection, or integral connection；It can be mechanical connection, can also be to be electrically connected
It connects；It can be directly connected, can also can also be the connection inside two elements indirectly connected through an intermediary, it can be with
It is to be wirelessly connected, can also be wired connection.For the ordinary skill in the art, can be understood with concrete condition above-mentioned
The concrete meaning of term in the present invention.
As long as in addition, technical characteristic involved in invention described below different embodiments non-structure each other
It can be combined with each other at conflict.
Embodiment 1
The present embodiment provides a kind of constant-current titration control methods, constant-current titration system are used for, as shown in Figure 1, constant-current titration
Control method includes the following steps：
S1, parallel burette test number is obtained.The same time, take same parameters, in same environment, by with a batch of
Multiple titration system sample introduction titration, can effectively reduce parameter when carrying out multinomial measurement on same sample influences, and improves experiment knot
The accuracy of fruit and data analysis.Certain special samples, can because illumination or with air slow reaction or the volatilization of itself etc.
Factor, same batch obtain sample, are placed under experiment room environmental, because of the sensitivity to the time, over time, the change of sample
Learning property can also change.When scientific research personnel, which needs to analyze to these samples, to be tested, 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 wrong
Accidentally.Parallel burette test refers to that can carry out one or two or more comparative analysis experiment in the same time, eliminate the time because
The influence of element.Parallel burette test is not the experiment for being simply carried out at the same time one or two or more, it is substantially by same
One apparatus control, the Backend parameter configuration of use, makes one or two of parallel titration or more experiment, consistent in approximation
Experiment is completed under test parameters, obtains comparatively ideal comparative analysis result.Parallel burette test also can be by two or more machines
It is completed at the same time experiment, time factor, but error between the batch of different machines is eliminated, includes the titration for calculating generation automatically by machine
Volume, titration speed etc. are uncontrolled, can be impacted to the experimental result of certain samples, and error is larger, can not be suitable for
All experiment samples, range are relatively narrow.Parallel burette test number refers to the number of trials for being carried out at the same time parallel titration.
S2, judge whether parallel burette test number is less than or equal to threshold value.It is titrated 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, S3 is entered step；When parallel burette test number is more than
When threshold value, exits experiment or reacquire parallel burette test number.
S3, control rotary module drive sample injection disc rotation, will be loaded on sample injection disc, corresponding to parallel burette test number
The titration cell of number is sent to operating position.For example, when parallel burette test number is two, then the experiment sample configured is put
Enter corresponding titration cell, two titration cells are sent to operating position.When parallel burette test number is one, then the reality that will configure
It tests sample and is put into corresponding titration cell, a titration cell is sent to operating position.
S4, control carry out parameter configuration with the titration module of parallel burette test number respective number, make ginseng having the same
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
At two, then two titration modules are subjected to 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 configured is to having sent the titration cell to operating position to carry out parallel burette test.It is parallel
Burette test generally comprises following steps：Control stirring lifting module is implemented to stir to titration cell, real-time reception instruction/reference electricity
The test value of pole acquisition；Reagent is sent into titration cell by titration module according to the state modulator configured by pipeline.
Above-mentioned constant-current titration control method can automatically be carried out by obtaining parallel burette test number according to required experiment number
Experiment, completion titration process and Test Data Collecting, entire process of testing is full-automatic, is not necessarily to manual intervention, when needs are to same
, can be by increasing parallel burette test number when one sample carries out contrast experiment's analysis, while controlling two to more parallel drops
Fixed experiment carries out experimental analysis using same parameters, in the same time, and the otherness to reduce experimental result influences, and improves experiment
As a result and the accuracy of data analysis, test repeatability and test accuracy are improved.
Preferably, constant-current titration control method is further comprising the steps of：
S6, judge whether parallel burette test is completed.Specifically, which can be electric by the instruction/reference received
The test value of pole acquisition is completed.When parallel burette test is completed, S7 is entered step；When parallel burette test do not complete, then
It maintains the statusquo.
S7, control rotary module drive sample injection disc rotate again, will be loaded in it is on sample injection disc, with parallel burette test number
The titration cell of respective number is sent to cleaning positions, to carry out cleaning operation to titration cell.After the completion of cleaning, rotation can also be controlled
Sample injection disc is turned to the operating position of next experiment by module, carries out next experiment automatically.
Titration cell is sent to cleaning positions, is carried out after completing parallel burette test by above-mentioned constant-current titration control method
Automatic cleaning, further can be achieved the full-automation of experiment process, reduces manually, improves test efficiency.
Embodiment 2
Corresponding to embodiment 1, the present embodiment provides a kind of constant-current titration control devices, are used 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；
First judging unit 20, for judging whether parallel burette test number is 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 to drive
Sample injection disc rotate, will be loaded in it is on sample injection disc, sent to operating position with the titration cell of parallel burette test number respective number；
Second control unit 40 is matched for controlling with the titration module of parallel burette test number respective number progress parameter
It sets, makes parameter configuration having the same；
Third control unit 50, for controlling the titration module configured to having sent the titration cell to operating position to put down
Row burette test.
Above-mentioned constant-current titration control device can automatically be carried out by obtaining parallel burette test number according to required experiment number
Experiment, completion titration process and Test Data Collecting, entire process of testing is full-automatic, is not necessarily to manual intervention, when needs are to same
, can be by increasing parallel burette test number when one sample carries out contrast experiment's analysis, while controlling two to more parallel drops
Fixed experiment carries out experimental analysis using same parameters, in the same time, and the otherness to reduce experimental result influences, and improves experiment
As a result and the accuracy of data analysis, test repeatability and test accuracy are improved.
Preferably, constant-current titration control device further includes：
Second judgment unit, for judging whether parallel burette test is completed；
4th control unit is completed for working as parallel burette test, and control rotary module drives sample injection disc to rotate again,
To be loaded in it is on sample injection disc, sent to cleaning positions with the titration cell of parallel burette test number respective number, with to titration cell into
Row cleaning operation.
Titration cell is sent to cleaning positions, is carried out after completing parallel burette test by above-mentioned constant-current titration control device
Automatic cleaning, further can be achieved the full-automation of experiment process, reduces manually, improves test efficiency.
Embodiment 3
The present embodiment provides a kind of constant-current titration systems, as shown in figure 3, including：Two titration modules, 1, two stirring rises
Instruction/the reference electrode 4, two of module 3, two titration cell 2, sample injection disc 5, rotary module 6 and constant-current titration control device 7 drop.
Each titration module 1 is connect with constant-current titration control device 7, is titrated between module 1 and titration cell 2 through piping connection, drop
Reagent is sent into titration cell 2 by cover half block 1 by pipeline.Titration module 1 is installed in titration shell 11.Each stirring lifting module 3
It is all connect with constant-current titration control device 7, for when carrying out parallel burette test, implementing to stir to titration cell 2, and pass through liter
Drop movement drives the instruction/reference electrode 4 loaded on it to stretch into titration cell 2.Stirring lifting module 3 includes lifter 31 and stirs
Bar 32 is mixed, stirring rod 32 and instruction/reference electrode 4 are all mounted on and can be lifted on the link block being flexibly connected with lifter 31.Often
A instruction/reference electrode 4 is all connect with constant-current titration control device 7, for measuring test value when parallel burette test.Titration
Pond 2 is loaded on sample injection disc 5.Sample injection disc 5 is connect 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.6 top of rotary module can also install protection cap 61, prevent reagent from flowing into rotation
Module 6 causes the damage of rotary module 6.Constant-current titration control device 7 is for controlling titration module 1, stirring lifting module 3, referring to
Show/the operation of reference electrode 4 and rotary module 6.Constant-current titration control device 7 is encapsulated in shell, can be used in embodiment 2
Constant-current titration control device carries out corresponding function.
It is the constant-current titration system that can be at most carried out at the same time two parallel burette test numbers above, as shown in figure 4, this field
It will be appreciated by the skilled person that when if desired at most carrying out three or more parallel burette test numbers simultaneously, need to only be dripped in current potential
Determine extension installation titration module 1 in system, stirring lifting module 3, the number of instruction/reference electrode 4, titration cell 2, simultaneously
It is connected to constant-current titration control device, quantity is more, and the parallel burette test number that can at most carry out simultaneously is more.It can simultaneously most
It carries out the constant-current titration system of two or more parallel burette test numbers more, can also carry out single parallel titration examination certainly
It tests, that is, need to only control one of titration module 1, stirring lifting module 3, instruction/reference electrode 4, titration cell 2 when testing and carry out
Work.
Above-mentioned constant-current titration system, can be used for parallel titration, the same time, take same parameters, same environment, by
It is titrated with a batch of multiple titration module sample introductions, can effectively reduce parameter when carrying out multinomial measurement on same sample influences,
Improve test result and the accuracy of data analysis.The experiment of batch sample can be carried out, realizes that experiment process is full-automatic.It can be certainly
Dynamicization completes experiment process, and whole process reduces manual intervention, and experiment is made to have good repeatability and experimental precision.
Preferably, rotary module 6 includes electric rotating machine and retarder；Sample injection disc 5 is loaded on the output revolving shaft of retarder,
Electric rotating machine is connect with retarder, the rotating speed for controlling sample injection disc 5.It can optimize to sample introduction disk rotating speed by using retarder
Control, improve control accuracy.
Embodiment 4
The present embodiment provides a kind of constant-current titration methods, are applied to the constant-current titration system of embodiment 3, constant-current titration method
Include the following steps：
W1, constant-current titration control device 7 obtain parallel burette test number；
W2, constant-current titration control device 7 control rotary module 6 and rotate, and rotary module 6 drives sample injection disc 5 to rotate, and will load
It is on sample injection disc 5, with the titration cell 2 of parallel burette test number respective number send correspondingly to stirring lift module 3 under
The operating position of side；
W3, constant-current titration control device 7 carry out parameter configuration to titration module 1, make and parallel burette test number respective counts
Purpose titrates 1 parameter configuration having the same of module；
W4, the control stirring lifting module 3 of constant-current titration control device 7 carry out lifting 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 acquires
Test value is simultaneously sent to constant-current titration control device 7；
Reagent is sent into titration cell 2 by W5, titration module 1 according to the state modulator configured by pipeline.
Above-mentioned constant-current titration method can automatically be tested according to required experiment number, complete titration process and test data
Acquisition, entire process of testing is full-automatic, is not necessarily to manual intervention, when needing to carry out contrast experiment's analysis to the same sample,
Can be by increasing parallel burette test number, while controlling two to more parallel burette tests and using same parameters, in same a period of time
Between carry out experimental analysis, the otherness to reduce experimental result influences, and improves the accuracy of experimental result and data analysis, improves
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 that the instruction/reference electrode 4 received acquires
After the completion of fixed experiment, control titration module 1 stops reagent being sent into titration cell 2, and controls stirring lifting module 3 and stop stirring fortune
It moves and carries out elevating movement to drive instruction/reference electrode 4 to exit titration cell 2；
W7, constant-current titration control device 7 control rotary module 6 and rotate, and rotary module 6 drives sample injection disc 5 to rotate, and will load
It is on sample injection disc 5, sent correspondingly to cleaning positions with the titration cell 2 of parallel burette test number respective number, with to drop
Determine pond 2 and carries out cleaning operation.
After the completion of some sampling test, automatic cleaning is realized, can be controlled again by constant-current titration control device later
Sample injection disc turns to the operating position of next experiment, switches to next sample and is tested.Reduce artificial, raising conventional efficient.
Obviously, the above embodiments are merely examples for clarifying the description, and does not limit the embodiments.It is right
For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of variation or
It changes.There is no necessity and possibility to exhaust all the enbodiments.And it is extended from this it is obvious variation or
It changes still within the protection scope of the invention.
Claims (8)
1. a kind of constant-current titration control method, which is characterized in that include the following steps：
Obtain parallel burette test number；
Judge whether parallel burette test number is 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 rotation, will be loaded in sample introduction
It is on disk, sent to operating position with the titration cell of parallel burette test number respective number；
It controls and carries out parameter configuration with the titration module of parallel burette test number respective number, make parameter configuration having the same；
The titration module configured is controlled to having sent the titration cell to operating position to carry out parallel burette test.
2. according to the method described in claim 1, it is characterized in that, the parameter includes：Instruction/reference electrode sample rate refers to
Show/reference electrode equilibrium potential, instruction/reference electrode equilibration time, stirring lifting module mixing speed, titration fltting speed and
Titration volumes.
3. method according to claim 1 or 2, which is characterized in that further comprising the steps of：
Judge whether parallel burette test is completed；
When parallel burette test is completed, control rotary module drives sample injection disc to rotate again, will be loaded in it is on sample injection disc, with
The titration cell of parallel burette test number respective number is sent to cleaning positions, to carry out cleaning operation to titration cell.
4. a kind of constant-current titration control device, which is characterized in that including：
Acquiring unit, for obtaining parallel burette test number；
First judging unit, for judging whether parallel burette test number is less than or equal to threshold value；
First control unit, for when parallel burette test number is less than or equal to threshold value, control rotary module to drive sample injection disc
Rotation, will be loaded in it is on sample injection disc, sent to operating position with the titration cell of parallel burette test number respective number；
Second control unit carries out parameter configuration with the titration module of parallel burette test number respective number for controlling, makes tool
There is identical parameter configuration；
Third control unit, for controlling the titration module configured to having sent the titration cell to operating position to carry out parallel titration
Experiment.
5. device according to claim 4, which is characterized in that the parameter includes：Instruction/reference electrode sample rate refers to
Show/reference electrode equilibrium potential, instruction/reference electrode equilibration time, stirring lifting module mixing speed, titration fltting speed and
Titration volumes.
6. device according to claim 4 or 5, which is characterized in that further include：
Second judgment unit, for judging whether parallel burette test is completed；
4th control unit is completed for working as parallel burette test, and control rotary module drives sample injection disc to rotate again, will fill
Be loaded in it is on sample injection disc, sent to cleaning positions with the titration cell of parallel burette test number respective number, it is clear to be carried out to titration cell
Wash operation.
7. a kind of constant-current titration method, which is characterized in that include the following steps：
Constant-current titration control device（7）Obtain parallel burette test number；
Constant-current titration control device（7）Control rotary module（6）Rotation, rotary module（6）Drive sample injection disc（5）Rotation, will fill
It is loaded in sample injection disc（5）On, with the titration cell of parallel burette test number respective number（2）It is sent correspondingly to stirring and lifts mould
Block（3）The operating position of lower section；
Constant-current titration control device（7）To titrating module（1）Parameter configuration is carried out, is made and parallel burette test number respective number
Titrate module（1）Parameter configuration having the same；
Constant-current titration control device（7）Control stirring lifting module（3）Lifting and stirring movement are carried out, to titration cell（2）Implement
Stirring, and drive instruction/reference electrode（4）Stretch into titration cell（2）, instruction/reference electrode（4）Acquisition test value is simultaneously sent to electricity
Position dripping control device（7）；
Titrate module（1）Reagent is sent into titration cell by pipeline according to the state modulator configured（2）.
8. constant-current titration method according to claim 7, which is characterized in that further comprising the steps of：
Constant-current titration control device（7）After the completion of judging parallel burette test, control titration module（1）Stop reagent being sent into and drip
Determine pond（2）, and control stirring lifting module（3）Stop stirring movement and carries out elevating movement to drive instruction/reference electrode（4）
Exit titration cell（2）；
Constant-current titration control device（7）Control rotary module（6）Rotation, rotary module（6）Drive sample injection disc（5）Rotation, will fill
It is loaded in sample injection disc（5）On, with the titration cell of parallel burette test number respective number（2）It is sent correspondingly to cleaning positions,
With to titration cell（2）Carry out cleaning operation.
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