CN215953363U - Titration apparatus - Google Patents
Titration apparatus Download PDFInfo
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- CN215953363U CN215953363U CN202121217287.5U CN202121217287U CN215953363U CN 215953363 U CN215953363 U CN 215953363U CN 202121217287 U CN202121217287 U CN 202121217287U CN 215953363 U CN215953363 U CN 215953363U
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- titration
- colored light
- light source
- container
- source mechanism
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Abstract
The utility model provides a titration apparatus. The titration apparatus comprises: a titration vessel; the sample table is used for placing the titration container; and a colored light source mechanism for illuminating the titration vessel. The colored light source mechanism is used for emitting specific colored light to be compounded with the indicating colors before and after the titration endpoint, so that the color difference of the indicating colors before and after the titration endpoint after compounding is increased compared with that before compounding. According to the utility model, the colored light source mechanism is arranged in the titration device to irradiate the reaction solution, so that after the colored light emitted by the titration device is compounded with the color of the reaction solution, the color difference of the indicating colors before and after the titration end point is increased, thus the titration end point can be judged more accurately, and the accuracy of the test result is improved.
Description
Technical Field
The utility model belongs to the technical field of analytical chemistry, and particularly relates to a titration apparatus.
Background
The titration method is one of the common methods for determining the content of substances in a solution in analytical chemistry, and the principle is that a certain volume of a sample solution to be measured is titrated by using a standard titration reagent until the reaction end point, and the content of the sample to be measured is calculated through the consumed titration reagent amount and the volume of the sample solution to be measured.
Before titration, an indicator is usually added to the sample solution to be tested, and the reaction endpoint is judged by the color change of the indicator. However, in some titration tests, the color change before and after the end point of the reaction is not obvious, which easily causes inaccurate end point judgment, and increases the error of the final measurement result. For example, in the prior art, when the content of iron ions is determined by titration, EDTA (ethylene diamine tetraacetic acid) is generally used as a titration reagent, sulfosalicylic acid is used as an indicator, the color of a titration end point changes from brownish red to yellow, the color difference between the brownish red and the yellow is small, the color change is difficult to distinguish by naked eyes in time, and the determination result is easy to be inaccurate.
Therefore, it is necessary to provide a solution for improving the accuracy of the determination of the end point of the reaction for the color reaction in which the color change is not significant.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects in the prior art, the utility model aims to provide a titration device. The device is provided with the colored light source mechanism, so that the reaction solution can be irradiated in the titration process, the color difference of the indicating colors before and after the titration end point is increased, the titration end point is judged more accurately, and the accuracy of the test result is improved.
In order to achieve the purpose, the utility model adopts the following technical scheme:
a titration apparatus, comprising:
the sample table is used for placing the titration container; and
a colored light source mechanism for illuminating the titration vessel.
In the present invention, the indicator color refers to the color of the reaction solution during the titration. The colored light source mechanism comprises a colored light source mechanism and a control module for controlling the colored light source mechanism to emit light, and the colored light source mechanism can emit light through an external power supply or an internal power supply.
In the present invention, the colored light source means is a colored light source means capable of emitting colored light to be combined with an indicator color for titration, so that the color difference of the indicator color before and after termination of titration is increased as compared with that before combination. Through set up this colored light source mechanism and shine reaction solution in titration outfit, can make titration end point color change more obvious (for example through setting up the colored light source mechanism that can send the blue light, shine the reaction solution in the titration container, make the brown red change into more obvious purple to green color change to yellow color change), titration end point judgement is more accurate to improve the accuracy of test result.
In some embodiments of the utility model, the titration apparatus further comprises a titration vessel.
In some embodiments of the present invention, a fixing part for fixing the titration vessel is disposed on the sample stage.
In the present invention, there is no particular limitation in the kind of the fixing portion, and the fixing portion may be, for example, a groove structure in which the fixing is achieved by inserting the titration vessel therein.
In some embodiments of the utility model, the sample stage has an interior cavity, and the colored light source mechanism is fixed in the interior cavity of the sample stage;
an exit window is arranged on the sample table at a position opposite to the titration container, and light emitted by the colored light source mechanism is emitted from the exit window to irradiate the titration container.
In the utility model, the colored light source mechanism can be fixed in the inner cavity of the sample table in an undetachable manner, and under the condition, devices with adjustable light emitting colors, such as an LED device and an OLED device, can be used as the colored light source mechanism; the colored light source mechanism can also be detachably fixed in the inner cavity of the sample table, and different light-emitting colors can be replaced according to the required light-emitting colors.
In the titration process, it is necessary to ensure that the solution in the titration container is irradiated as much as possible so as to observe the overall color change of the solution and prevent the misjudgment of the titration end point caused by local discoloration. However, the solution in the titration vessel is gradually increased with the addition of the titration solution, and the titration vessel is usually shaken during the titration process to uniformly mix the solution, so that it is difficult to always completely irradiate the solution in the titration vessel. In the utility model, the colored light source mechanism is fixed in the inner cavity of the sample table, so that colored light irradiates solution from the bottom of the titration container, and the solution can be completely irradiated by the colored light even if the solution is increased; and the colored light source mechanism and the titration container are fixed on the sample platform, and when the sample platform moves, the colored light source mechanism and the titration container are relatively static, so that the solution in the titration container is always irradiated by colored light, and the composition of the color of the solution and the color of the colored light in the titration process is realized.
In the present invention, the type of the exit window is not particularly limited. The exit window may exemplarily be a through hole, in which case the titration container is supported by the holder, or the titration container is in direct contact with the colored light source means, the support being provided by the colored light source means. The exit window may also be a baffle made of a transparent material, which is integrated with the rest of the sample stage.
In some embodiments of the utility model, the exit window coincides with the shape of the bottom of the titration vessel. This is to prevent colored light from being irradiated to a place other than the titration vessel to cause color interference.
In some embodiments of the present invention, the titration apparatus further comprises a moving part connected to the bottom of the sample stage for controlling the movement of the sample stage.
In the utility model, the moving part is arranged for controlling the sample stage to move so as to shake and mix the solution in the titration container uniformly.
In the present invention, there is no particular limitation on the kind of the moving portion, and the moving portion may be a pulley, for example.
In some embodiments of the present invention, the titration apparatus further comprises a limit seat for limiting a movement range of the sample stage.
In some embodiments of the present invention, a track cooperating with the moving part is disposed on the limiting base, so as to limit the moving part to move in the track.
In some embodiments of the present invention, the titration apparatus further comprises a positioning rack for defining a range of motion of the opening portion of the titration vessel.
In some embodiments of the present invention, the positioning frame is fixedly connected to the limiting base.
In the process of titration, reagent is dripped into the titration container, at the moment, the movement of the titration container needs to be kept, so that the solution is uniformly mixed, and the dripped reagent is required to accurately fall into the titration container. In the utility model, the limiting base is used for limiting the movement range of the sample table, and the positioning frame is provided with a positioning ring which sleeves the bottleneck of the titration container so as to limit the shaking amplitude of the opening part of the titration container, so that the bottleneck moves in the set range of the positioning frame, and the dripped reagent is ensured to accurately fall into the titration container.
Compared with the prior art, the utility model has the following beneficial effects:
according to the utility model, the colored light source mechanism is arranged in the titration device to irradiate the reaction solution, so that after the colored light emitted by the titration device is compounded with the color of the reaction solution, the color difference of the indicating colors before and after the titration end point is increased, and the color change of the titration end point is more obvious, so that the titration end point can be judged more accurately, and the accuracy of the test result is improved.
Drawings
FIG. 1 is a schematic structural view of a titration apparatus provided in example 1;
FIG. 2 is a schematic view of the structure of a sample stage in example 1;
FIG. 3 is a schematic structural view of the titration apparatus provided in example 2;
FIG. 4 is a schematic structural view of the titration apparatus provided in example 3;
fig. 5 is a schematic structural view of a limiting base in embodiment 3;
FIG. 6 is a schematic structural view of the titration apparatus provided in example 4;
FIG. 7 is a schematic view showing the structure of a spacer in embodiment 4;
wherein, 1 is the titration container, 2 is the sample platform, 3 is colored light source mechanism, 4 is the removal portion, 5 is spacing base, 6 is the locating rack, 21 is the fixed part, 22 is the inner chamber, 23 is the exit window, 51 is the track, 61 is the holding ring, 62 is the support.
Detailed Description
The technical scheme of the utility model is further explained by the specific implementation mode in combination with the attached drawings. It should be understood by those skilled in the art that the specific embodiments are only for the understanding of the present invention and should not be construed as the specific limitations of the present invention.
Example 1
This embodiment provides a titration apparatus, the structure of which is shown in fig. 1, including:
a titration container 1, a sample table 2 and a colored light source mechanism 3;
the sample stage 2 is structured as shown in fig. 2, and has a fixing portion 21 on an upper surface thereof, the fixing portion 21 is a groove structure matching with the shape of the titration container 1, and the titration container 1 is embedded in the fixing portion 21;
the sample table 2 is internally provided with an inner cavity 22, and the colored light source mechanism 3 is fixed in the inner cavity 22 of the sample table 2;
the bottom area of the fixing part 21 of the sample stage 2 is transparent to form an exit window 23; the shape of the exit window 23 coincides with the shape of the bottom of the titration vessel 1, and the sample stage 2 is opaque except for the exit window 23, so that the light emitted by the colored light source mechanism 3 can only be emitted from the exit window 23 to irradiate the titration vessel 1;
the colored light source mechanism 3 can emit colored light and is compounded with the indicating colors before and after the titration end point, so that the color difference of the indicating colors before and after the titration end point is increased compared with that before compounding.
In the embodiment, the colored light source mechanism is arranged in the titration device to irradiate the reaction solution, so that after the colored light emitted by the titration device is compounded with the color of the reaction solution, the color difference of the indicating colors before and after the titration end point is increased, the color change of the titration end point is more obvious, the titration end point can be judged more accurately, and the accuracy of the test result is improved. The colored light source mechanism 3 is fixed in the inner cavity 22 of the sample table 2, so that colored light is emitted from the exit window 23 at the bottom of the titration container 1, which is helpful for ensuring that the solution in the titration container 1 is always completely irradiated by the colored light, and the composition of the color of the solution and the color of the colored light in the titration process is realized.
Example 2
The present embodiment provides a titration apparatus, the structure of which is shown in fig. 3, and the only difference from embodiment 1 is that the titration apparatus further includes a plurality of moving parts 4 connected to the bottom of the sample stage 2, and the moving parts 4 are pulleys.
This embodiment is through further connecting removal portion 4 at 2 bottoms of sample platform, and the motion of control sample platform 2 helps rocking the solution in titrating container 1 and mixes evenly, makes titrant and the timely reaction of awaiting measuring agent, improves the accuracy of test result.
Example 3
The present embodiment provides a titration apparatus, the structure of which is shown in fig. 4, and the only difference from embodiment 2 is that the titration apparatus further includes a limit base 5, the sample stage 2 is placed on the limit base 5 through a moving part 4;
the limiting base 5 is configured as shown in fig. 5, and has a plurality of circular rails 51 on the surface, and each rail 51 is matched with one moving part 4, so that the moving part 4 can only move in the rail 51.
In the embodiment, the track 51 matched with the moving part 4 is further arranged on the limiting base 5, so that the moving part 4 can only move in the track 51, which is beneficial to limiting the moving range of the titration container 1 and preventing the titration reagent from falling out of the titration container 1 due to an overlarge moving range.
Example 4
This embodiment provides a titration apparatus, the structure of which is shown in fig. 6, and the only difference from embodiment 3 is that the titration apparatus further comprises a positioning frame 6;
the positioning frame 6 is structured as shown in fig. 7, and comprises a positioning ring 61 and a bracket 62 connected to the positioning ring 61;
the positioning ring 61 is sleeved on the bottleneck of the titration container 1;
the bottom end of the support 62 is fixedly connected to the limiting base 5.
This embodiment is through further fixed connection locating rack 6 on limit base 5, entangles titration container 1's bottleneck with holding ring 61, can mark the motion range of titration container bottleneck on the one hand, and on the other hand can restrict the range of rocking of titration container bottleneck, guarantees that titration reagent accuracy falls into in titration container.
Although the utility model has been described in detail hereinabove by way of general description, specific embodiments and experiments, it will be apparent to those skilled in the art that many modifications and improvements can be made thereto based on the utility model. Accordingly, such modifications and improvements are intended to be within the scope of the utility model as claimed.
Claims (9)
1. A titration device, characterized in that, the titration device comprises:
the sample table is used for placing a titration container; and
a colored light source mechanism for illuminating the titration vessel;
the sample table is provided with an inner cavity, and the colored light source mechanism is fixed in the inner cavity of the sample table;
an exit window is arranged on the sample table at a position opposite to the titration container, and light emitted by the colored light source mechanism is emitted from the exit window to irradiate the titration container.
2. The titration device according to claim 1, wherein the titration device further comprises a titration container.
3. The titration apparatus according to claim 1, wherein a fixing portion for fixing the titration vessel is provided on the sample stage.
4. The titration device according to claim 1, wherein the exit window coincides with the shape of the bottom of the titration container.
5. The titration apparatus according to claim 1, further comprising a moving part connected to the bottom of the sample stage for controlling the movement of the sample stage.
6. The titration apparatus according to claim 5, wherein the titration apparatus further comprises a limit seat for limiting a range of motion of the sample stage.
7. The titration apparatus according to claim 6, wherein the limiting base is provided with a track engaged with the moving part for limiting the moving part from moving in the track.
8. The titration device according to claim 7, further comprising a spacer for limiting a range of motion of the opening of the titration vessel.
9. The titration apparatus according to claim 8, wherein the positioning frame is fixedly connected to the limiting base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121217287.5U CN215953363U (en) | 2021-06-01 | 2021-06-01 | Titration apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121217287.5U CN215953363U (en) | 2021-06-01 | 2021-06-01 | Titration apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215953363U true CN215953363U (en) | 2022-03-04 |
Family
ID=80565210
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121217287.5U Active CN215953363U (en) | 2021-06-01 | 2021-06-01 | Titration apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215953363U (en) |
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2021
- 2021-06-01 CN CN202121217287.5U patent/CN215953363U/en active Active
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