CN217180758U - Siphon titration apparatus based on mass measurement - Google Patents
Siphon titration apparatus based on mass measurement Download PDFInfo
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- CN217180758U CN217180758U CN202220074264.1U CN202220074264U CN217180758U CN 217180758 U CN217180758 U CN 217180758U CN 202220074264 U CN202220074264 U CN 202220074264U CN 217180758 U CN217180758 U CN 217180758U
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- Prior art keywords
- titration
- pipeline
- bottle
- liquid
- siphon
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- 238000004448 titration Methods 0.000 title claims abstract description 141
- 238000005259 measurement Methods 0.000 title claims abstract description 19
- 239000007788 liquid Substances 0.000 claims abstract description 82
- 238000003860 storage Methods 0.000 claims abstract description 4
- 238000004458 analytical method Methods 0.000 abstract description 3
- 239000012530 fluid Substances 0.000 abstract 1
- 238000001802 infusion Methods 0.000 abstract 1
- 239000000243 solution Substances 0.000 description 19
- LLPOLZWFYMWNKH-CMKMFDCUSA-N hydrocodone Chemical compound C([C@H]1[C@H](N(CC[C@@]112)C)C3)CC(=O)[C@@H]1OC1=C2C3=CC=C1OC LLPOLZWFYMWNKH-CMKMFDCUSA-N 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- 239000000126 substance Substances 0.000 description 5
- 239000012086 standard solution Substances 0.000 description 3
- 238000003221 volumetric titration Methods 0.000 description 3
- 230000035945 sensitivity Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005497 microtitration Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Images
Abstract
A siphon titration apparatus based on mass measurement comprises a titration liquid bottle, a titrated liquid bottle, a titration liquid inflow pipeline, a siphon pipeline and an electronic balance for measuring the mass of the titration liquid bottle, wherein one end of the titration liquid inflow pipeline is communicated with an external titration liquid storage tank, and the other end of the titration liquid inflow pipeline extends into the titration liquid bottle; the siphon pipeline comprises a vertical pipeline in the bottle and a liquid leading-out pipeline communicated with the vertical pipeline in the bottle, the other end of the vertical pipeline in the bottle extends to the bottom of the titration liquid bottle, the liquid leading-out pipeline extends to the position right above the titration bottle, and a titration head matched with the titration bottle is further installed on the liquid leading-out pipeline. This application can reduce the influence of factors such as temperature to the result in the titration analysis, improves the convenience and the accuracy of titration operation by a wide margin through simple device and mode, has avoided frequently to burette titration liquid fluid infusion simultaneously.
Description
Technical Field
The utility model relates to an analytical chemistry technical field, especially a siphon-type titration outfit based on mass measurement.
Background
The titrimetric analysis method is to drop the standard solution into the solution of the measured substance through a burette until the added standard solution reacts with the measured substance according to the stoichiometric relationship, and then calculate the measured substance according to the amount of the consumed standard solution, and comprises a volumetric titration method and a gravimetric titration method.
Calculating the content of the measured substance through the quantity concentration and the volume of the substance, and the method is called volumetric titration; the 'mass concentration' and 'volume' are changed into 'weight molar concentration' and 'weight', the principle is the same, the basis is the metering relation of titration reaction, and the titration analysis method is called as a gravimetric titration method; compared with volume measurement, weight measurement is simple and rapid to operate, and has higher accuracy and sensitivity, for example, 100g of solution weighed by a common ten-thousandth balance can be accurately weighed to +/-0.1 mg, namely +/-0.0001 mL, while volume measurement can only be accurately regulated to +/-0.01 mL, and the sensitivity is improved by nearly 100 times.
Although the prior art has the existing titration device by using a gravimetric titration method, the prior device has some defects, if the device is complicated, an upper electronic analytical balance and a professional production control facility need to be specially customized, the cost is high, and the device is difficult to rapidly popularize; the liquid level of some devices must be kept horizontal, and the buoy can not rock and adhere to the wall, so that the requirement on experimental control conditions of the method is high; in the titration process, some devices often need to add pure water to flush the wall of a container to be titrated, add an indicator and other uncertain operations, that is, the increment of the quality of a titrated solution contains other components besides the titrating solution, so that the quality measurement is inaccurate.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that to prior art not enough, provide one kind can improve by a wide margin through simple device and mode and titrate the siphon-type titration outfit based on quality measurement of simple operation nature and accuracy.
The technical problem to be solved by the utility model is realized through the following technical scheme. The utility model relates to a siphon titration apparatus based on mass measurement, which comprises a titration liquid bottle, a titrated liquid bottle, a titration liquid inflow pipeline, a siphon pipeline and an electronic balance for measuring the mass of the titration liquid bottle, wherein one end of the titration liquid inflow pipeline is communicated with an external titration liquid storage tank, and the other end of the titration liquid inflow pipeline extends into the titration liquid bottle; the siphon pipeline includes vertical pipeline in the bottle and draws forth the pipeline with the liquid of vertical pipeline intercommunication in the bottle, and the other end of vertical pipeline extends to the bottom of titrating the liquid bottle in the bottle, and liquid draws forth the pipeline and extends to directly over by titrating the bottle, still install on liquid draws forth the pipeline and titrate the bottle complex and titrate the head.
The utility model discloses the technical problem that solve can also further realize through following technical scheme, to above based on quality measurement hydrocone type titration outfit, titrate the liquid inflow pipeline and titrate the liquid bottle contactless, still install the switch on titrating the liquid inflow pipeline.
The utility model discloses the technical problem that will solve can also further realize through following technical scheme, to above based on quality measurement hydrocone type titration outfit, vertical pipeline is the stereoplasm capillary pipeline of pipe diameter from top to bottom unanimity in the bottle.
The utility model discloses the technical problem that solve can also further realize through following technical scheme, to above based on quality measurement hydrocone type titration outfit, vertical pipeline and titration liquid bottle contactless in the bottle.
The utility model discloses the technical problem that solve can also further realize through following technical scheme, to above based on quality measurement hydrocone type titration outfit, the liquid is drawn forth the pipeline and is flexible capillary pipeline.
The utility model discloses the technical problem that solve can also further realize through following technical scheme, to above based on quality measurement hydrocone type titration outfit, still install the check valve on liquid draws forth the pipeline.
The utility model discloses the technical problem that will solve can also further realize through following technical scheme, to above based on quality measurement hydrocone type titration outfit, titrate the head and titrate the head for taking the tee bend of piston, titrate overhead being provided with and titrate head entry, titrate first export and induction port.
The utility model discloses the technical problem that will solve can also further realize through following technical scheme, to above based on quality measurement hydrocone type titration outfit, the device still titrates the liquid and flows in pipeline, siphon pipeline fixed titration support including being used for the cooperation, titrates the liquid and flows in pipeline, siphon pipeline and all install on titrating the support.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the problems that the existing volumetric titration is complex in titration operation process, many in influencing factors, low in result accuracy and difficult to be compatible with the constant titration and the micro titration are solved;
2. the problems of complex scheme, non-universal using apparatus, high implementation cost and the like in the conventional quality titration can be solved;
3. realizes continuous titration and avoids frequent liquid adding in the titration room.
Drawings
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is a cross-sectional view of the titration head of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings of the present invention are combined to clearly and completely describe the technical solutions in the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1 to 2, a siphon titration apparatus based on mass metering, in order to place a titration liquid bottle 1 on an electronic balance 5, drop the titration liquid in the titration liquid bottle 1 into a titrated liquid bottle 2 by a siphon principle, calculate the weight of the consumed standard titration solution by the mass difference of the titration liquid bottle 1 before and after titration, and calculate the titration result by weight;
the device includes: an electronic balance 5, a titrant inflow pipeline 3, a titrant bottle 1, a siphon pipeline 4, a titration head 10, a titrated liquid bottle 2 and a titration bracket 9;
the electronic balance 5 is a market universal electronic balance 5 and can be selected according to the requirements of titration accuracy and measuring range;
the titration solution flows into the pipeline 3 and is used for connecting the titration solution storage tank with the titration bottle, a switch is arranged on the pipeline, the joint of the titration solution flowing into the pipeline 3 and the titration bottle is suspended, and the pipe orifice is slightly deep into the titration bottle body, so that the titration solution is convenient to input;
a titration liquid bottle 1: the cross sections of all parts of the bottle body are equal, the bottle wall is vertical to the bottle bottom, the shape is like a cylinder, a cuboid and the like (the titration result is convenient to correct, the reduction of the reading number of the electronic balance 5 during titration reduces the mass of the titration liquid, reduces the buoyancy of the titration liquid to the vertical siphon tube and needs to be corrected), and meanwhile, the bottle mouth is smaller than the bottle body so as to reduce the volatilization of the liquid;
siphon pipeline 4: is formed by connecting a vertical pipeline 6 in a bottle and a liquid leading-out pipeline 7;
the vertical pipeline 6 in the bottle is a hard capillary pipeline with the same diameter from top to bottom, the upper part of the vertical pipeline is suspended and is not contacted with the titration liquid bottle 1 (the uncertain influence of the capillary on the quality of the titration liquid bottle 1 is avoided, and the capillary does not need to be taken out of the titration bottle during weighing before and after titration), and the lower part of the vertical pipeline vertically extends into the titration liquid and is close to the bottom of the titration liquid, so that the titration liquid is output outwards;
the liquid leading-out pipeline 7 is connected with the vertical pipeline 6 in the bottle and is used for leading liquid to the dripped liquid bottle 2, a flexible capillary pipeline is preferably selected, and a check valve 8 is also arranged at the position, close to the outlet, of the pipeline;
the titration head 10 is a three-way titration head 10 with a piston, the sectional view is shown in figure 2, the upper part is tightly connected with the outlet of the siphon pipeline 4, the horizontal position of the titration head 10 is lower than the bottommost part of the titration liquid bottle 1 when in use, namely the titration head 10 is arranged below the titration liquid bottle 1;
titrand bottle 2: is arranged below the titration head 10 and is used for placing the titrated solution;
titration support 9: the device is used for enabling the solid titration solution to flow into the pipeline 3 and the siphon pipeline 4, so that the titration solution flows into the pipeline 3 and the siphon pipeline 4 to be suspended and fixed without contacting with the titration solution bottle 1, and the accuracy of the quality measurement of the titration solution bottle 1 is ensured;
the application method comprises the following steps:
1. filling a titration bottle with a standard titration solution, placing the titration bottle on a tray of an electronic balance 5, and installing and fixing titration devices such as a titration solution inflow pipeline 3 and a siphon pipeline 4;
2. placing a waste liquid bottle under the titration head 10, rotating the three-way piston to a state that the air suction port 13 is communicated with the inlet 11 of the titration head and is not communicated with the outlet 12 of the titration head, and performing air suction by using an injector and the like to enable the titration liquid to flow out from the air suction port 13 along the siphon pipeline 4;
3. rotating the piston to make the inlet 11 of the titration head communicated with the outlet 12 of the titration head and not communicated with the air suction port 13, and under the action of siphon, the titration liquid flows out along the outlet 12 of the titration head;
4. closing the piston and reading the balance;
5. putting the titrated liquid bottle 2 into the container, opening a piston for titration, and closing the piston to record the reading of the electronic balance 5 after the titration is finished;
6. the difference value of the readings of the electronic balance 5 at the previous time and the next time is used as the consumption of the standard titration solution after being corrected;
note that the final result also needs to be corrected, and the correction method: the mass difference value is a correction factor, and the correction factor is (inner diameter of the titration liquid bottle 1-outer diameter of the vertical capillary tube)/inner diameter of the titration liquid bottle 1.
Claims (8)
1. The utility model provides a siphon titration outfit based on quality measurement which characterized in that: the titration apparatus comprises a titration liquid bottle, a titrated liquid bottle, a titration liquid inflow pipeline, a siphon pipeline and an electronic balance for measuring the mass of the titration liquid bottle, wherein one end of the titration liquid inflow pipeline is communicated with an external titration liquid storage tank, and the other end of the titration liquid inflow pipeline extends into the titration liquid bottle; the siphon pipeline comprises a vertical pipeline in the bottle and a liquid leading-out pipeline communicated with the vertical pipeline in the bottle, the other end of the vertical pipeline in the bottle extends to the bottom of the titration liquid bottle, the liquid leading-out pipeline extends to the position right above the titration bottle, and a titration head matched with the titration bottle is further installed on the liquid leading-out pipeline.
2. The mass-metering-based siphonic titration device according to claim 1, wherein: the titration liquid inflow pipeline is not contacted with the titration liquid bottle, and a switch is also arranged on the titration liquid inflow pipeline.
3. The mass-metering-based siphonic titration device according to claim 1, wherein: the vertical pipeline in the bottle is a hard capillary pipeline with the pipe diameter consistent up and down.
4. The mass-metering-based siphonic titration device according to claim 1 or 3, wherein: the vertical pipe in the bottle is not contacted with the titration liquid bottle.
5. The mass-metering-based siphonic titration device according to claim 1, wherein: the liquid leading-out pipeline is a flexible capillary pipeline.
6. The mass-metering-based siphonic titration device according to claim 1 or 5, wherein: a check valve is also arranged on the liquid leading-out pipeline.
7. The mass-metering-based siphonic titration device according to claim 1, wherein: the titration head is a three-way titration head with a piston, and a titration head inlet, a titration head outlet and an air suction port are arranged on the titration head.
8. The mass-metering-based siphonic titration device according to claim 1, wherein: the device still includes and is used for cooperating titration liquid inflow pipeline, siphon pipeline fixed titration support, and titration liquid inflow pipeline, siphon pipeline all install on titrating the support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220074264.1U CN217180758U (en) | 2022-01-12 | 2022-01-12 | Siphon titration apparatus based on mass measurement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220074264.1U CN217180758U (en) | 2022-01-12 | 2022-01-12 | Siphon titration apparatus based on mass measurement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217180758U true CN217180758U (en) | 2022-08-12 |
Family
ID=82735487
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220074264.1U Expired - Fee Related CN217180758U (en) | 2022-01-12 | 2022-01-12 | Siphon titration apparatus based on mass measurement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217180758U (en) |
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2022
- 2022-01-12 CN CN202220074264.1U patent/CN217180758U/en not_active Expired - Fee Related
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220812 |
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| CF01 | Termination of patent right due to non-payment of annual fee |