CN220932794U - Molybdate detection device - Google Patents
Molybdate detection device Download PDFInfo
- Publication number
- CN220932794U CN220932794U CN202322636452.6U CN202322636452U CN220932794U CN 220932794 U CN220932794 U CN 220932794U CN 202322636452 U CN202322636452 U CN 202322636452U CN 220932794 U CN220932794 U CN 220932794U
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- CN
- China
- Prior art keywords
- peristaltic pump
- module
- molybdate
- photometer
- detection device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- MEFBJEMVZONFCJ-UHFFFAOYSA-N molybdate Chemical compound [O-][Mo]([O-])(=O)=O MEFBJEMVZONFCJ-UHFFFAOYSA-N 0.000 title claims abstract description 21
- 238000001514 detection method Methods 0.000 title claims abstract description 19
- 239000007788 liquid Substances 0.000 claims abstract description 24
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 13
- 238000002347 injection Methods 0.000 claims abstract description 11
- 239000007924 injection Substances 0.000 claims abstract description 11
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 8
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 7
- 230000003647 oxidation Effects 0.000 claims abstract description 7
- 239000012445 acidic reagent Substances 0.000 claims abstract description 6
- 239000007800 oxidant agent Substances 0.000 claims abstract description 6
- 230000002572 peristaltic effect Effects 0.000 claims description 35
- 239000002699 waste material Substances 0.000 claims description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 239000003153 chemical reaction reagent Substances 0.000 claims 2
- 229910052750 molybdenum Inorganic materials 0.000 abstract description 14
- 239000011733 molybdenum Substances 0.000 abstract description 14
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 abstract description 13
- 230000001590 oxidative effect Effects 0.000 abstract description 4
- 238000006243 chemical reaction Methods 0.000 abstract description 3
- 238000004737 colorimetric analysis Methods 0.000 abstract description 3
- 238000006722 reduction reaction Methods 0.000 abstract description 3
- 239000002253 acid Substances 0.000 abstract description 2
- 238000010668 complexation reaction Methods 0.000 abstract description 2
- 239000000243 solution Substances 0.000 description 5
- 229910052783 alkali metal Inorganic materials 0.000 description 2
- -1 alkali metal salts Chemical class 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- ZMZDMBWJUHKJPS-UHFFFAOYSA-M Thiocyanate anion Chemical compound [S-]C#N ZMZDMBWJUHKJPS-UHFFFAOYSA-M 0.000 description 1
- 238000002835 absorbance Methods 0.000 description 1
- 239000003929 acidic solution Substances 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 150000001340 alkali metals Chemical class 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 150000004677 hydrates Chemical class 0.000 description 1
- ZMZDMBWJUHKJPS-UHFFFAOYSA-N hydrogen thiocyanate Natural products SC#N ZMZDMBWJUHKJPS-UHFFFAOYSA-N 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 239000008204 material by function Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 150000003475 thallium Chemical class 0.000 description 1
Landscapes
- Investigating Or Analysing Materials By The Use Of Chemical Reactions (AREA)
Abstract
The utility model relates to a molybdate detection device which comprises a control system and a photometer, wherein a sample injection module is connected to the photometer, and a pH value module, an oxidation module, a reducing agent module and a color developing agent module are sequentially connected between the sample injection module and the photometer. According to the utility model, an acid reagent is used for providing an acid reaction environment in a pipeline, a detection liquid reacts with an oxidant to form hexavalent molybdenum, then the hexavalent molybdenum is subjected to a reduction reaction by a reducing agent to form pentavalent molybdenum, the pentavalent molybdenum is subjected to a complexation reaction with a color developing agent to form an orange-red complex, and colorimetry is carried out at a wave band of 420nm by a photometer.
Description
Technical Field
The utility model relates to the technical field of detection, in particular to a molybdate detection device.
Background
Molybdate is one of two important families of inorganic functional materials, in which ammonium, alkali metal, magnesium and thallium salts are soluble in water, and others are insoluble in water, in which the molybdate can be reduced, and in which the crystals of such molybdate contain discrete MoO tetrahedral structure ions; the alkali metal salts are regular tetrahedra, other salts are distorted tetrahedra, molybdate exists as tetrahedra ions in solution, molybdate can be polymerized into various homopolyacids in slightly acidic solution, so-called MoO.2HO molybdate can be gradually formed in nitric acid solution, and MoO.HO is obtained by heating the solution, and the compounds are all hydrates of oxides.
When detecting molybdate in a solution, a photometer is generally adopted for analysis, however, part of the flow in the detection process needs human intervention for operation, and the human intervention can cause problems of data such as reaction time, pH value, temperature and the like, thereby influencing the detection result.
Disclosure of utility model
The present utility model is directed to a molybdate detecting device, which solves the above-mentioned problems of the prior art.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the molybdate detection device comprises a control system and a photometer, wherein a sample injection module is connected to the photometer, and a pH value module, an oxidation module, a reducing agent module and a color developing agent module are sequentially connected between the sample injection module and the photometer.
Optionally, the sample injection module comprises a first peristaltic pump, a first electromagnetic valve is connected to the first peristaltic pump, a second electromagnetic valve and a water sample storage are connected to the first electromagnetic valve, and a range calibration liquid storage and a zero calibration liquid storage are connected to the second electromagnetic valve.
Optionally, the pH module comprises a second peristaltic pump, and the second peristaltic pump is connected with an acid reagent reservoir.
Optionally, the oxidation module comprises a third peristaltic pump, and an oxidant reservoir is connected to the third peristaltic pump.
Optionally, the reducing agent module comprises a fourth peristaltic pump, and the fourth peristaltic pump is connected with a reducing agent storage.
Optionally, the developer module includes a fifth peristaltic pump, and a developer reservoir is connected to the fifth peristaltic pump.
Optionally, the top and the bottom of photometer are connected with the waste liquid pipe, be provided with the third solenoid valve on the waste liquid pipe, be connected with the waste liquid pond on the waste liquid pipe.
Compared with the prior art, the utility model has the beneficial effects that:
According to the utility model, an acid reagent is used for providing an acid reaction environment in a pipeline, a detection liquid reacts with an oxidant to form hexavalent molybdenum, then the hexavalent molybdenum is subjected to a reduction reaction by a reducing agent to form pentavalent molybdenum, the pentavalent molybdenum is subjected to a complexation reaction with a color developing agent to form an orange-red complex, and colorimetry is carried out at a wave band of 420nm by a photometer.
Drawings
Fig. 1 is a schematic structural view of the present utility model.
Detailed Description
In order to further describe the technical means and effects adopted by the present utility model for achieving the intended purpose, the following detailed description will refer to the specific implementation, structure, characteristics and effects according to the present utility model with reference to the accompanying drawings and preferred embodiments.
As shown in fig. 1, a molybdate detection device comprises a control system and a photometer 1, wherein a sample injection module is connected to the photometer 1, a pH value module, an oxidation module, a reducing agent module and a color developing agent module are sequentially connected between the sample injection module and the photometer 1, the sample injection module comprises a first peristaltic pump 2, a first electromagnetic valve 21 is connected to the first peristaltic pump 2, a second electromagnetic valve 22 and a water sample reservoir are connected to the first electromagnetic valve 21, a range calibration liquid reservoir and a zero calibration liquid reservoir are connected to the second electromagnetic valve 22, the pH value module comprises a second peristaltic pump 3, an acid reagent reservoir is connected to the second peristaltic pump 3, the oxidation module comprises a third peristaltic pump 4, an oxidizing agent reservoir is connected to the third peristaltic pump 4, the reducing agent module comprises a fourth peristaltic pump 5, a reducing agent reservoir is connected to the fourth peristaltic pump 5, a waste liquid tube 7 is connected to the top end and the bottom end of the photometer 1, a third electromagnetic valve peristaltic pump 8 is arranged on the waste liquid tube 7, and a waste liquid peristaltic pump 7 is connected to the waste liquid tube 7.
When the device is in use, the device,
The first step: starting the first peristaltic pump 2, the second peristaltic pump 3 and the third peristaltic pump 4, introducing an acid reagent into a conveying pipeline to form an acidic environment in the pipeline, and carrying out oxidation reaction on molybdenum ions in the detection liquid under the action of an oxidant to form hexavalent molybdenum.
And a second step of: starting a fourth peristaltic pump 5 and a fifth peristaltic pump 6, and performing a reduction reaction on hexavalent molybdenum in the pipeline and a reducing agent to reduce the hexavalent molybdenum into pentavalent molybdenum, wherein the pentavalent molybdenum and thiocyanate (color developing agent) form an orange-red complex;
And a second step of: introducing the orange-red complex after the reaction into a photometer 1, and carrying out colorimetry at a 420nm wave band in a certain concentration range, wherein the absorbance is in direct proportion to the concentration;
and a third step of: the third electromagnetic valve 8 is opened, and the waste liquid flows out from the waste liquid pipe 7 and is discharged into the waste liquid pool.
The present utility model is not limited to the above embodiments, but is capable of modification and variation in detail, and other modifications and variations can be made by those skilled in the art without departing from the scope of the present utility model.
Claims (7)
1. The molybdate detection device is characterized by comprising a control system and a photometer (1), wherein a sample injection module is connected to the photometer (1), and a pH value module, an oxidation module, a reducer module and a color-developing agent module are sequentially connected between the sample injection module and the photometer (1).
2. The molybdate detection device according to claim 1, wherein the sample injection module comprises a first peristaltic pump (2), a first electromagnetic valve (21) is connected to the first peristaltic pump (2), a second electromagnetic valve (22) and a water sample reservoir are connected to the first electromagnetic valve (21), and a range calibration liquid reservoir and a zero calibration liquid reservoir are connected to the second electromagnetic valve (22).
3. The molybdate detection device according to claim 1 wherein the pH module comprises a second peristaltic pump (3), the second peristaltic pump (3) being connected with an acid reagent reservoir.
4. The molybdate detection device according to claim 1 wherein the oxidation module comprises a third peristaltic pump (4), wherein the third peristaltic pump (4) is connected with an oxidizer reservoir.
5. The molybdate detection device according to claim 1 wherein said reducing agent module comprises a fourth peristaltic pump (5), said fourth peristaltic pump (5) having a reducing agent reservoir connected thereto.
6. The molybdate detection device according to claim 1 wherein said color reagent module comprises a fifth peristaltic pump (6), said fifth peristaltic pump (6) having a color reagent reservoir connected thereto.
7. The molybdate detection device according to claim 1, wherein the top and bottom ends of the photometer (1) are connected with a waste liquid pipe (7), a third electromagnetic valve (8) is arranged on the waste liquid pipe (7), and a waste liquid pool is connected on the waste liquid pipe (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322636452.6U CN220932794U (en) | 2023-09-27 | 2023-09-27 | Molybdate detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322636452.6U CN220932794U (en) | 2023-09-27 | 2023-09-27 | Molybdate detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220932794U true CN220932794U (en) | 2024-05-10 |
Family
ID=90933820
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322636452.6U Active CN220932794U (en) | 2023-09-27 | 2023-09-27 | Molybdate detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220932794U (en) |
-
2023
- 2023-09-27 CN CN202322636452.6U patent/CN220932794U/en active Active
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| GR01 | Patent grant |