CN106840300A - A kind of method of the device for measuring titrating solution volume and metering titrating solution volume - Google Patents
A kind of method of the device for measuring titrating solution volume and metering titrating solution volume Download PDFInfo
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- CN106840300A CN106840300A CN201710076796.2A CN201710076796A CN106840300A CN 106840300 A CN106840300 A CN 106840300A CN 201710076796 A CN201710076796 A CN 201710076796A CN 106840300 A CN106840300 A CN 106840300A
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- drop
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F22/00—Methods or apparatus for measuring volume of fluids or fluent solid material, not otherwise provided for
-
- G—PHYSICS
- G01—MEASURING; TESTING
- 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
- G01N31/18—Burettes specially adapted for titration
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- Life Sciences & Earth Sciences (AREA)
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- Biochemistry (AREA)
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- Devices For Use In Laboratory Experiments (AREA)
Abstract
The invention discloses a kind of device for measuring titrating solution volume, including the fast governor motion of buret, drop, container and electronic scale.Measure titrating solution volume method be：(1) before titrating, by the first container as on electronic scale, it is zeroed；(2) titrate；(3) after titration reaches terminal, by the first container as on electronic scale, the weight of the upper titrating solution of reading electronic scale is W1；The clean second container of same specification is put on electronic scale, is zeroed, the titrating solution for measuring certain volume V is W as the weight that titrating solution is shown in second container, on electronic scale2, V/W2As the volume of Unit Weight titrating solution, repeats n times, the volume average value Y of unit of account gravimetric titration liquid；(4)W1× Y is converted into the volume of titrating solution, calculates testing result.The method of present invention metering titrating solution volume, volumetric soiutions volume is directly displayed, and clear reading is directly perceived.Human error is effectively prevented from, accuracy is significantly improved.
Description
Technical field
The present invention relates to experiment equipment field, more particularly to a kind of device for measuring titrating solution volume and metering titrate liquid
Long-pending method.
Background technology
Buret is that a kind of tubulose measures formula volumetric glass, a certain amount of volumetric soiutions is released from buret to titration eventually
Point, by the volume of solution before scale on tube wall reads titration and after titration, the front and rear difference of reading of titration is the molten of releasing
Liquid accumulated amount, for calculating testing result.The outfit of buret and simple to operate, is that vessel are often used in chemical experiment capacity analysis.
But the use of buret also has inconvenience, easily there is human error, influence detection accuracy.With liquid level during burette reading
Concave surface minimum point correspondence scale is defined, and minimum point identification difficulty in liquid level concave surface is by factors such as bore size, volumetric soiutions colors
Influence.Titration tube wall scale is fine and closely woven, and each graduation mark cannot correspond to mark volumetric quantities, but just have every several graduation marks
One corresponding volumetric quantities, operating personnel are when the scale without mark volumetric quantities is read, it is necessary to according to each small lattice graduation apparatus
The volume for showing, could read an individual product after converting in the brain.If liquid level concave surface minimum point is empty between two scales
White place, two graduation mark spacing very littles, the identification capability of human eye is limited, and operating personnel can only feel to estimate the individuality of reading one according to individual
Product value.Existing buret is to titration liquid volume measurement poor accuracy and inconvenience.
The information for being disclosed in the background section is merely intended to increase the understanding to general background of the invention, without answering
In being considered as recognizing or imply in any form that the information structure has been the prior art well known to persons skilled in the art.
The content of the invention
It is existing so as to overcome it is an object of the invention to provide a kind of device and its application method for measuring titrating solution volume
Buret rate of titration and volumetric soiutions amount are difficult to pin-point reading, and reading has error, accuracy shortcoming not high.
Another object of the present invention is to provide a kind of method for measuring titrating solution volume.
To achieve the above object, the invention provides a kind of device for measuring titrating solution volume, including buret, drop velocity modulation
Section mechanism, container and electronic scale, the drop speed governor motion include：Flexible pipe, it is located on drop velocity modulation section fixed mount, correspondence institute
The bottom for stating buret is set, and the titration regulation fixed mount is provided with screwed hole, and the sample container to be titrated is correspondingly arranged at institute
State the lower section of flexible pipe；And drop speed control screw rod, it passes through the screwed hole on the drop velocity modulation section fixed mount, is rotatably located at
On the drop velocity modulation section fixed mount, one end is fitted setting with the flexible pipe；Wherein, by rotating the drop speed control screw rod,
Control the size of the flexible pipe and drop speed control screw rod joint place internal diameter, and then the controllable flow velocity for flowing out flexible pipe liquid.
Preferably, in above-mentioned technical proposal, the other end of the drop speed control screw rod is provided with drop velocity modulation section spiro rod cap.
Preferably, in above-mentioned technical proposal, the titration regulation fixed mount is provided with the fast table of drop, during the drop speed table is provided with
Heart hole, the drop speed control screw rod is provided with the fast graduation mark of drop, the drop through the centre bore for dripping fast table, the drop speed table
Velocity modulation section spiro rod cap is provided with the drop speed instruction line corresponding with the fast graduation mark of the drop.
Preferably, in above-mentioned technical proposal, 1/2 girth with diameter greater than the flexible pipe of the drop speed control screw rod.
Preferably, in above-mentioned technical proposal, the buret is provided with buret stand, and the drop velocity modulation section fixed mount can be gone up
Lower movement on the buret stand.
Preferably, in above-mentioned technical proposal, the flexible pipe is acid and alkali-resistance plastic tube.
A kind of method for measuring titrating solution volume, carries out measuring titrating solution using the device of above-mentioned metering titrating solution volume
Volume.
A kind of method for measuring titrating solution volume, comprises the following steps：
(1) before titrating, by the first container as on electronic scale, it is zeroed；
(2) the fast adjusting screw rod of drop is rotated, the fast adjusting screw rod of drop is moved to flexible pipe direction, flexible pipe is extruded into flat, toward drop
Titrating solution is added in fixed tube, titration is started after the alignment zero graduation of liquid level concave surface；Rotate the fast adjusting screw rod of drop, the fast adjusting screw rod of drop to
Away from the movement of flexible pipe direction, flexible pipe unclamps, is titrated, nearly terminal when, rotate the fast adjusting screw rod of drop, squeezing tube, control
The flow velocity of titrating solution；
(3) after titration reaches terminal, by the first container as on electronic scale, the weight for reading the upper titrating solution of electronic scale is
W1；The clean second container of same specification is put on electronic scale, is zeroed, take the titrating solution of certain volume V as in second container,
The weight that titrating solution is shown on electronic scale is W2, V/W2As the volume of Unit Weight titrating solution, repeats n times, unit of account weight
Measure the volume average value Y of titrating solution；
(4) testing result, the dropwise addition weight W of titrant are calculated1× Y is to be scaled titrating solution volume is added dropwise.
Compared with prior art, the present invention has the advantages that：
(1) device of metering titrating solution volume of the invention, according to the fast screw rod of drop is to the hose squeezing degree of titrating solution and drips
Different drop speed are identified scale by the association of fast speed on the fast table of drop, it is clear visually, testing staff according to the fast instruction line of drop very
Easily and accurately control drop speed, controls dropping point terminal.Avoid easy with sensation speed regulation process by rule of thumb during conventional titration is operated
There is drop speed too fast, the problems such as dripped terminal.Control titrant drop speed is accurate coutroi velocity, greatly improves titration operation
Accuracy, it is to avoid human error, it is ensured that the accuracy of testing result.
(2) method of present invention metering titrating solution volume, simple to operate, it is to avoid minimum point correspondence in concave surface is carved during reading
The identification of degree and volume are converted, and volumetric soiutions volume is directly displayed, and clear reading is directly perceived.Testing staff is according to titration precision configuration
The metering device of correspondence precision, measurement result is accurate to 0.01mL-0.001mL, is effectively prevented from human error, and accuracy is obvious
Improve.Testing staff's visual operation, accurate control drop speed, it is to avoid overtitration, the inaccurate problem of terminal reading.
Brief description of the drawings
Fig. 1 is the structural representation of use for laboratory titration outfit of the invention.
Specific embodiment
Below in conjunction with the accompanying drawings, specific embodiment of the invention is described in detail, it is to be understood that guarantor of the invention
Shield scope is not limited by specific embodiment.
Explicitly indicated that unless otherwise other, otherwise in entire disclosure and claims, term " including " or its change
Change such as "comprising" or " including " etc. and will be understood to comprise stated element or part, and do not exclude other units
Part or other parts.
As shown in figure 1, a kind of device of the metering titrating solution volume according to the specific embodiment of the invention, including buret
1st, fast governor motion 2, buret stand 3, container 4 and electronic scale 5 are dripped.Buret 1 is on buret stand 3.The fast governor motion 2 of drop
Including drop velocity modulation section fixed mount 21, flexible pipe 22 and the fast adjusting screw rod 23 of drop.Drop velocity modulation section fixed mount 21 can slide up and down and be located at
On buret stand 3, on drop velocity modulation section fixed mount 21, the bottom of the upper end correspondence buret 1 of flexible pipe 22 is set flexible pipe 22.It is excellent
Selection of land, flexible pipe 22 is acid and alkali-resistance plastic tube.The lower section of flexible pipe 22 is correspondingly provided with sample container 4 to be titrated, and container 4 is placed on electronic scale 5.
Drop velocity modulation section fixed mount 21 is provided with the screwed hole cooperated with drop speed control screw rod 23, and drop speed control screw rod 23 is rotatable
On drop velocity modulation section fixed mount 21, left part fit settings with flexible pipe 22, and screw rod is controlled by rotating drop speed, control flexible pipe and
The size of the fast adjusting screw rod joint place internal diameter of drop, and then the controllable flow velocity for flowing out flexible pipe liquid.According to the fast adjusting screw rod pair of drop
The hose squeezing degree of titrating solution is associated with drop speed speed, and scale is identified to different drop speed on the fast table of drop, clear visual,
Testing staff is according to the drop speed instruction line fast scale size of correspondence drop on the spiro rod cap of the fast adjusting screw rod of drop, it is easy to control exactly
System drop speed, controls dropping point terminal.Avoid human error, it is ensured that the accuracy of testing result.
Preferably, the right-hand member for dripping speed control screw rod 23 is provided with drop velocity modulation section spiro rod cap 24.It is easy to rotate the fast adjusting screw rod of drop；
There is the fast instruction line of drop on spiro rod cap.
Preferably, the titration regulation fixed mount is provided with the fast table 25 of drop, and the fast table 25 of drop is provided with centre bore, the drop speed
Control screw rod 23 is provided with the fast graduation mark of drop, the drop velocity modulation section through the centre bore for dripping fast table 25, the drop speed table 25
Spiro rod cap 24 is provided with the drop speed instruction line corresponding with the fast graduation mark of drop.
Preferably, 1/2 girth with diameter greater than flexible pipe 22 of fast adjusting screw rod 23 is dripped.
The operating method of the device of present invention metering titrating solution volume is as follows：
Before titration, drop velocity modulation section spiro rod cap is rotated clockwise, the drop speed adjusting screw rod 23 on drop velocity modulation section fixed mount 21 exists
Rotated in screwed hole, the fast front end of adjusting screw rod 23 of drop is constantly moved ahead, and squeezing tube 22, the upper end of flexible pipe 22 is connected under buret 1
The liquid outlet at end.The lower section of flexible pipe 22 is correspondingly provided with sample container 4 to be titrated, and container 4 is placed on electronic scale 5.The fast adjusting screw rod 23 of drop
Binding face with flexible pipe pushes flexible pipe 22 to opposite, and flexible pipe is gradually extruded into flat, and pipe void reduces, and drips velocity modulation section spiro rod cap
Fast instruction line is dripped on 24 to be rotated as screw rod is rotated, and 0 scale of the fast table of drop is pointed to the fast instruction line of drop.Add toward buret 1
Enter titrant, such as liquid level concave surface exceeds zero graduation line, counterclockwise slow to rotate drop velocity modulation section spiro rod cap 24, drips velocity modulation section spiral shell
Bar 23 is moved backward, and flexible pipe 3 is gradually released a bit, and titrant is oozed, and the regulation of liquid level concave surface is arrived into zero graduation line, immediately up time
Pin rotates drop velocity modulation section spiro rod cap 24, and 0 scale of the fast table of drop is pointed to the fast instruction line of drop.Rotate in an anti-clockwise direction drop velocity modulation section spiral shell
Pole cap 24, the fast adjusting screw rod 23 of drop is moved backward, and flexible pipe 3 is gradually released, the increase of flexible pipe internal pore, titrant flow velocity in flexible pipe
Increase, the suitable speed titration of fast scale selection is dripped according to being dripped on drop velocity modulation section spiro rod cap 24 on the fast instruction line fast table of corresponding drop.
Nearly terminal when, rotate clockwise the fast adjusting screw rod 23 of drop, the drop continuous squeezing tube of fast adjusting screw rod 23, titrant stream in flexible pipe
Speed reduces, and according to the fast table high scale of drop, rotary screw cap makes drop speed instruction line be directed at the neighbouring graduation mark of 0 scale and titrated,
The drop speed for dripping velocity modulation section spiro rod cap 24, if desired for slower drop speed, can be referred to line again to 0 scale by titrant with relatively slow drop speed titration
Line is rotated, drop speed slow easier grasp terminal opportunity, it is ensured that titration is accurately reached home.
The method for being used to measure titrating solution volume using the device of above-mentioned metering titrating solution volume, comprises the following steps：
(1) before titrating, by the first container 4 as on electronic scale 5, it is zeroed；
(2) the fast adjusting screw rod of drop is rotated clockwise, the fast adjusting screw rod of drop is moved to flexible pipe direction, flexible pipe is extruded into flat
Shape, drips fast instruction line and is rotated as screw rod is rotated on drop velocity modulation section spiro rod cap 24, extremely drip 0 quarter that fast instruction line points to drop speed table
Degree；Titrating solution is added toward buret, titration is started after the alignment zero graduation of liquid level concave surface；The fast adjusting screw rod of drop is rotated counterclockwise,
The fast adjusting screw rod of drop is moved to away from flexible pipe direction, and flexible pipe unclamps, the increase of flexible pipe internal pore, titrant flow velocity increase in flexible pipe,
The suitable speed titration of fast scale selection is dripped on the fast instruction line fast table of corresponding drop according to being dripped on the fast spiro rod cap of drop.Nearly terminal when,
Rotate clockwise the fast screw rod of drop, the continuous squeezing tube of screw rod, titrant flow velocity reduction in flexible pipe, according to the fast table high scale of drop, rotation
Turn spiro rod cap, drop speed instruction line is directed at the neighbouring graduation mark of 0 scale and titrated, titrant is such as needed with relatively slow drop speed titration
Drop that will be slower is fast, the drop speed on spiro rod cap can be referred into line is rotated to 0 graduation mark again, and drop speed is easier slowly to grasp terminal opportunity, protects
Card titration is accurately reached home；
(3) after titration reaches terminal, the container after titration is placed on electronic scale, electronic scale display screen display numerical value is represented
The dropwise addition weight W of titrant1；The clean second container of same specification is put on electronic scale, is zeroed；By the accurate extraction of pipette
The titrating solution of 5ml is put as in second container, and electronic scale display screen shows the weight W of 5ml (V) titrant2, 5ml/W2As
The volume of Unit Weight titrating solution, is repeated 3 times, the volume average value Y of unit of account gravimetric titration liquid；
(4) testing result, the dropwise addition weight W of titrant are calculated1× Y is to be scaled titrating solution volume is added dropwise.
Generally, the buret of 5-25mL is equipped with the electronic scale of accuracy 0.01g, and titrant consumption can be accurate to
0.01mL, is such as equipped with the electronic scale of accuracy 0.001g, and titrant consumption can be accurate to 0.001mL.And usual 5mL is micro
Buret may be only accurate to 0.02mL, and 25mL burets are accurate to 0.1mL.Using the method for present invention metering titrating solution volume,
Sought in the graduation mark that operating personnel need not be fine and closely woven on buret and read liquid level concave surface not easy to identify, the invention enables digital independent
Direct convenience is quick, and reading accuracy is improved, reduce testing staff's eye fatigue, it is to avoid the hidden danger of human error, it is ensured that
The accuracy of testing result.
The foregoing description to specific illustrative embodiment of the invention be in order to illustrate and illustration purpose.These descriptions
It is not wishing to limit the invention to disclosed precise forms, and it will be apparent that according to above-mentioned teaching, can be much changed
And change.The purpose of selecting and describing the exemplary embodiment is that explaining that certain principles of the invention and its reality should
With so that those skilled in the art can realize and using a variety of exemplaries of the invention and
A variety of selections and change.The scope of the present invention is intended to be limited by claims and its equivalents.
Claims (8)
1. a kind of device for measuring titrating solution volume, it is characterised in that including buret, the fast governor motion of drop, container and electricity
Sub- scale, the drop speed governor motion includes：
Flexible pipe, it is located on drop velocity modulation section fixed mount, and the bottom of the correspondence buret is set, on the titration regulation fixed mount
Screwed hole is provided with, the sample container to be titrated is correspondingly arranged at the lower section of the flexible pipe；And
Drop speed control screw rod, it passes through the screwed hole on the drop velocity modulation section fixed mount, rotatably located at the drop velocity modulation section
On fixed mount, one end is fitted setting with the flexible pipe；
Wherein, by rotating the drop speed control screw rod, the flexible pipe is controlled with drop speed control screw rod joint place internal diameter
Size, and then the controllable flow velocity for flowing out flexible pipe liquid.
2. the device of metering titrating solution volume according to claim 1, it is characterised in that drop speed control screw rod it is another
One end is provided with drop velocity modulation section spiro rod cap.
3. the device of metering titrating solution volume according to claim 2, it is characterised in that on titration regulation fixed mount
The fast table of drop is provided with, the drop speed table is provided with centre bore, and the drop speed controls screw rod through the centre bore of the fast table of the drop, the drop
Fast table is provided with the fast graduation mark of drop, and the drop velocity modulation section spiro rod cap is provided with the drop speed corresponding with the fast graduation mark of the drop and indicates
Line.
4. the device of metering titrating solution volume according to claim 1, it is characterised in that drop speed control screw rod it is straight
1/2 girth of the footpath more than the flexible pipe.
5. it is according to claim 1 metering titrating solution volume device, it is characterised in that the buret is provided with buret
On frame, the drop velocity modulation section fixed mount is moving up and down on the buret stand.
6. it is according to claim 1 metering titrating solution volume device, it is characterised in that the flexible pipe be acid and alkali-resistance plastics
Pipe.
7. it is a kind of measure titrating solution volume method, it is characterised in that usage right requirement 1-6 in any metering titrating solution
The device of volume measure the volume of titrating solution.
8. the method for measuring titrating solution volume according to claim 7, it is characterised in that comprise the following steps：
(1) before titrating, by the first container as on electronic scale, it is zeroed；
(2) the fast adjusting screw rod of drop is rotated, the fast adjusting screw rod of drop is moved to flexible pipe direction, flexible pipe is extruded into flat, toward buret
Middle addition titrating solution, titration is started after the alignment zero graduation of liquid level concave surface；Rotate the fast adjusting screw rod of drop, the fast adjusting screw rod of drop to away from
Flexible pipe direction is moved, and flexible pipe unclamps, and is titrated, nearly terminal when, rotate the fast adjusting screw rod of drop, squeezing tube, control titration
The flow velocity of liquid；
(3) after titration reaches terminal, by the first container as on electronic scale, the weight of the upper titrating solution of reading electronic scale is W1；
The clean second container of same specification is put on electronic scale, is zeroed, take the titrating solution of certain volume V as in second container, electronics
The weight that titrating solution is shown on scale is W2, V/W2As the volume of Unit Weight titrating solution, repeats n times, unit of account weight drop
Determine the volume average value Y of liquid；
(4) testing result, the dropwise addition weight W of titrant are calculated1× Y is to be scaled titrating solution volume is added dropwise.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710076796.2A CN106840300A (en) | 2017-02-13 | 2017-02-13 | A kind of method of the device for measuring titrating solution volume and metering titrating solution volume |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710076796.2A CN106840300A (en) | 2017-02-13 | 2017-02-13 | A kind of method of the device for measuring titrating solution volume and metering titrating solution volume |
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| CN106840300A true CN106840300A (en) | 2017-06-13 |
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| CN201710076796.2A Pending CN106840300A (en) | 2017-02-13 | 2017-02-13 | A kind of method of the device for measuring titrating solution volume and metering titrating solution volume |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108445149A (en) * | 2018-05-23 | 2018-08-24 | 上海纽迈新材料有限公司 | A kind of number shows titration instrument and its operating method |
| CN111007198A (en) * | 2019-12-27 | 2020-04-14 | 广州科联精密机器股份有限公司 | Syringe type titration method |
| CN112098259A (en) * | 2020-07-23 | 2020-12-18 | 中国包装科研测试中心 | Oxygen absorption performance measuring device and method for deoxidizer |
| WO2020148764A3 (en) * | 2019-01-17 | 2021-04-22 | Shahar Dan Yehoshoa | Pipettor calibration system devices and methods thereof |
| CN114011485A (en) * | 2021-11-01 | 2022-02-08 | 海南医学院 | Auxiliary device is titrated in preventive medicine experiment |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2213996Y (en) * | 1994-09-20 | 1995-11-29 | 徐德照 | Adjusting device for liquid drop capacity |
| DE19632653A1 (en) * | 1995-08-15 | 1997-02-20 | Israel State | Reagent compilation for the determination of water and endiols or thiols |
| CN2449229Y (en) * | 2000-08-31 | 2001-09-19 | 武汉大学 | Miniature burette |
| CN2520506Y (en) * | 2002-01-01 | 2002-11-13 | 王德权 | Rotary apparatus for titrimetry |
| CN2888446Y (en) * | 2006-03-09 | 2007-04-11 | 武汉市锅炉压力容器检验研究所 | Titration analyzer |
| CN201819906U (en) * | 2009-11-26 | 2011-05-04 | 占达东 | Universal type capacity analysis burette |
| CN103513005A (en) * | 2013-08-24 | 2014-01-15 | 天津隆雷科技有限公司 | Burette |
| CN104180878A (en) * | 2014-08-26 | 2014-12-03 | 深圳市湘津石仪器有限公司 | Container capacity automatic verification device and verification method thereof |
| CN205700642U (en) * | 2016-06-28 | 2016-11-23 | 王润格 | A kind of senior chemistry titration experiments device |
-
2017
- 2017-02-13 CN CN201710076796.2A patent/CN106840300A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2213996Y (en) * | 1994-09-20 | 1995-11-29 | 徐德照 | Adjusting device for liquid drop capacity |
| DE19632653A1 (en) * | 1995-08-15 | 1997-02-20 | Israel State | Reagent compilation for the determination of water and endiols or thiols |
| CN2449229Y (en) * | 2000-08-31 | 2001-09-19 | 武汉大学 | Miniature burette |
| CN2520506Y (en) * | 2002-01-01 | 2002-11-13 | 王德权 | Rotary apparatus for titrimetry |
| CN2888446Y (en) * | 2006-03-09 | 2007-04-11 | 武汉市锅炉压力容器检验研究所 | Titration analyzer |
| CN201819906U (en) * | 2009-11-26 | 2011-05-04 | 占达东 | Universal type capacity analysis burette |
| CN103513005A (en) * | 2013-08-24 | 2014-01-15 | 天津隆雷科技有限公司 | Burette |
| CN104180878A (en) * | 2014-08-26 | 2014-12-03 | 深圳市湘津石仪器有限公司 | Container capacity automatic verification device and verification method thereof |
| CN205700642U (en) * | 2016-06-28 | 2016-11-23 | 王润格 | A kind of senior chemistry titration experiments device |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108445149A (en) * | 2018-05-23 | 2018-08-24 | 上海纽迈新材料有限公司 | A kind of number shows titration instrument and its operating method |
| WO2020148764A3 (en) * | 2019-01-17 | 2021-04-22 | Shahar Dan Yehoshoa | Pipettor calibration system devices and methods thereof |
| CN111007198A (en) * | 2019-12-27 | 2020-04-14 | 广州科联精密机器股份有限公司 | Syringe type titration method |
| CN112098259A (en) * | 2020-07-23 | 2020-12-18 | 中国包装科研测试中心 | Oxygen absorption performance measuring device and method for deoxidizer |
| CN114011485A (en) * | 2021-11-01 | 2022-02-08 | 海南医学院 | Auxiliary device is titrated in preventive medicine experiment |
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Application publication date: 20170613 |