CN211478079U - Flow injection analyzer - Google Patents
Flow injection analyzer Download PDFInfo
- Publication number
- CN211478079U CN211478079U CN202020114848.8U CN202020114848U CN211478079U CN 211478079 U CN211478079 U CN 211478079U CN 202020114848 U CN202020114848 U CN 202020114848U CN 211478079 U CN211478079 U CN 211478079U
- Authority
- CN
- China
- Prior art keywords
- liquid
- communicated
- sample
- liquid inlet
- inlet
- 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.)
- Active
Links
Images
Landscapes
- Automatic Analysis And Handling Materials Therefor (AREA)
Abstract
The utility model belongs to the technical field of solution detection equipment technique and specifically relates to a flow injection analysis appearance is related to. The device comprises a current-carrying pipeline, wherein the current-carrying pipeline is sequentially communicated with a constant flow pump, a reactor and a detector, and the current-carrying pipeline positioned between the constant flow pump and the reactor is communicated with a sample-adding assembly; the sample adding assembly comprises a peristaltic pump, a sample injection valve and a three-way pipe, wherein the outlet of the peristaltic pump is communicated with the current-carrying pipeline, and the inlet of the peristaltic pump is communicated with the outlet of the sample injection valve; and the inlet of the sample injection valve is communicated with one interface of the three-way pipe, and the other two interfaces of the three-way valve are respectively communicated with a reagent. The utility model provides a pair of flow injection analysis appearance has guaranteed the abundant reaction of reactant and the sample that awaits measuring, improves and detects the accuracy.
Description
Technical Field
The utility model belongs to the technical field of solution detection equipment technique and specifically relates to a flow injection analysis appearance is related to.
Background
During grass seed development, soil analysis is required to ensure proper growth of the crop. At present, a flow injection analyzer is mostly adopted to measure the contents of components such as ammonium nitrogen, nitrate nitrogen, nitrite nitrogen and the like in soil.
The existing flow injection analyzer compresses pump tubes with different tube diameters by a peristaltic pump according to a continuous flow method, and injects a reaction reagent and a sample to be detected into one tube in proportion: in closed and continuous flowing current carrying, a color reaction occurs in a chemical reaction unit, a signal value of the color reaction is measured in a detector, and the concentration of a sample to be measured is measured according to a standard curve method.
The existing flow injection analyzer has the main problems that a reaction reagent and a sample to be detected are injected with a current carrier and then are subjected to mixing reaction, the reaction time is short, and the reaction is not ensured to be sufficient.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a flow injection analysis appearance, having guaranteed the abundant reaction of reactant and the sample that awaits measuring, improving and detecting the accuracy to prior art exists not enough.
The above object of the present invention can be achieved by the following technical solutions:
a flow injection analyzer comprises a current-carrying pipeline, wherein the current-carrying pipeline is sequentially communicated with a constant flow pump, a reactor and a detector, and the current-carrying pipeline positioned between the constant flow pump and the reactor is communicated with a sample-adding assembly;
the sample adding assembly comprises a peristaltic pump, a sample injection valve and a three-way pipe, wherein the outlet of the peristaltic pump is communicated with the current-carrying pipeline, and the inlet of the peristaltic pump is communicated with the liquid outlet of the sample injection valve; the liquid inlet of the sample injection valve is communicated with one connector of the three-way pipe, and the other two connectors of the three-way pipe are respectively communicated with a reagent.
By adopting the technical scheme, the reaction reagent and the sample to be detected are mixed and reacted with each other after flowing through the three-way pipe before being injected into the current-carrying pipe, so that the flow and the reaction time of the mixed reagent are increased, and the detection accuracy is improved.
The utility model discloses further set up to: the sample adding assembly also comprises a liquid separating block;
the liquid separation block is provided with a first liquid inlet, a second liquid inlet and a third liquid inlet, and the first liquid inlet is communicated with two first liquid outlets; the second liquid inlet is communicated with two second liquid outlets; and the third liquid inlet is communicated with two third liquid outlets.
By adopting the technical scheme, the first liquid inlet, the second liquid inlet and the third liquid inlet are communicated with three reagents, so that the mixing and reaction of any two reagents are realized.
The utility model discloses further set up to: the sample injection valve is a three-way valve.
By adopting the technical scheme, the sample injection of the three mixed reagents is realized.
The utility model discloses further set up to: and three liquid inlets of the sample injection valve are respectively communicated with one connector of the three-way pipe.
By adopting the technical scheme, the switching of different mixed reagents is realized, and then the detection of different mixed reagents is realized.
The utility model discloses further set up to: one of the three-way pipes is communicated with the first liquid outlet and the second liquid outlet;
one of the three-way pipes is communicated with the second liquid outlet and the third liquid outlet;
one of the three-way pipes is communicated with the first liquid outlet and the third liquid outlet.
By adopting the technical scheme, the mixing and reaction of any two reagents are realized.
The utility model discloses further set up to: the first liquid inlet, the second liquid inlet and the third liquid inlet are respectively connected with a reagent bottle.
By adopting the technical scheme, corresponding reagents are respectively filled in the reagent bottles according to requirements, so that the mixing and reaction of any two reagents are realized; clear water can be added into the reagent bottle, the clear water is injected into the whole pipeline to clean the pipeline, the reagent remaining in the pipeline is prevented from polluting a mixer to be detected, and the accuracy of element content detection is ensured.
The utility model discloses further set up to: the reactor is a spiral reactor.
By adopting the technical scheme, the spiral pipeline increases the flow of mixing the reagent, so that the reaction reagent and the sample to be detected fully react.
The utility model discloses further set up to: the detector is a spectrophotometry detector.
By adopting the technical scheme, when the characteristic spectral line emitted by the element lamp to be detected passes through atomic vapor generated by atomization of the sample, the characteristic spectral line is absorbed by ground-state atoms of the element to be detected in the vapor, and the content of the element to be detected in the mixed reagent is obtained by measuring the reduction degree of the radiation light intensity.
To sum up, the utility model discloses a beneficial technological effect does:
1. three liquid inlets of the sample injection valve are respectively communicated with a connector of a three-way pipe, a first liquid inlet, a second liquid inlet and a third liquid inlet are formed in the liquid separation block, wherein the first liquid inlet is communicated with two first liquid outlets, the second liquid inlet is communicated with two second liquid outlets, the third liquid inlet is communicated with two third liquid outlets, one of the three-way pipes is communicated with the first liquid outlet and the second liquid outlets, one of the three-way pipes is communicated with the second liquid outlets and the third liquid outlets, one of the three-way pipes is communicated with the first liquid outlets and the third liquid outlets, the first liquid inlet, the second liquid inlet and the third liquid inlet are respectively connected with three reagents, and mixing and reaction of any two reagents are realized.
2. The sample injection valve realizes the switching of different mixed reagents, and further realizes the detection of different mixed reagents.
3. Any mixed reagent is switched through a sample injection valve, the mixed reagent is injected into a current-carrying pipeline and flows into a reactor to generate a color reaction, a signal value of the mixed reagent is measured in a detector, and the element content of a sample to be measured is measured according to a standard curve method.
Drawings
Fig. 1 is a schematic connection diagram of a flow injection analyzer according to the present invention;
fig. 2 is a schematic structural diagram of a sample adding assembly of a flow injection analyzer provided by the present invention;
fig. 3 is a schematic structural diagram of a liquid separation block of a flow injection analyzer according to the present invention.
In the figure, 10, the current-carrying line; 20. a constant flow pump; 30. a peristaltic pump; 40. a sample injection valve; 41. a liquid inlet; 42. a liquid outlet; 50. a reactor; 60. a detector; 70. a three-way pipe; 80. separating liquid blocks; 81. a first inlet; 82. a first liquid outlet; 83. a second inlet; 84. a second liquid outlet; 85. a third inlet; 86. a third liquid outlet; 90. and (4) reagent bottles.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The utility model provides a pair of flow injection analysis appearance has guaranteed the abundant reaction of reactant and the sample that awaits measuring, improves and detects the accuracy.
Referring to fig. 1 and 2, for the utility model discloses a flow injection analyzer, including current-carrying pipeline 10, constant flow pump 20, reactor 50 and detector 60 have connected gradually on current-carrying pipeline 10, are connected with the application of sample subassembly on the current-carrying pipeline 10 between constant flow pump 20 and the reactor 50. The reactor 50 is a spiral reactor 50, and the spiral pipeline increases the flow of the mixed reagent, so that the reaction reagent and the sample to be detected fully react. The detector 60 is a spectrophotometric detector 60, and when the characteristic spectral line emitted by the element lamp to be detected passes through atomic vapor generated by atomization of the sample, the characteristic spectral line is absorbed by ground-state atoms of the element to be detected in the vapor, and the content of the element to be detected in the mixed reagent is obtained by measuring the reduction degree of the radiation light intensity.
The sample adding component mixes the reaction reagent and the sample to be detected in proportion, injects the mixture into the current carrying in the current carrying pipeline 10 after reaction, flows into the reactor 50 to generate color reaction, measures the signal value in the detector 60, and measures the element content of the sample to be detected according to a standard curve method.
Referring to fig. 1 and 2, the sample adding assembly includes a peristaltic pump 30, a sample injecting valve 40, a three-way pipe 70 and a liquid dividing block 80, wherein the sample injecting valve 40 is a three-way valve and includes three liquid inlets 41 and one liquid outlet 42. The outlet of the peristaltic pump 30 is connected to the carrier line 10, and the inlet is connected to the outlet 42 of the sample injection valve 40. Three liquid inlets 41 of the sample injection valve 40 are respectively communicated with one interface of the three-way pipe 70, and the other two interfaces of each three-way pipe 70 are respectively communicated with reagents, so that the reaction reagents and the sample to be detected are mixed and reacted with each other after flowing through the three-way pipe 70 before being injected with the current carrying, the flow and the reaction time of the mixed reagents are further increased, and the detection accuracy is improved; the sample injection valve 40 realizes switching of different mixed reagents, and further realizes detection of different mixed reagents.
Referring to fig. 2 and 3, the liquid dividing block 80 is provided with a first liquid inlet 81, a second liquid inlet 83 and a third liquid inlet 85, wherein the first liquid inlet 81 is communicated with two first liquid outlets 82, the second liquid inlet 83 is communicated with two second liquid outlets 84, the third liquid inlet 85 is communicated with two third liquid outlets 86, one of the three-way pipes 70 is communicated with the first liquid outlet 82 and the second liquid outlet 84, one of the three-way pipes 70 is communicated with the second liquid outlet 84 and the third liquid outlet 86, one of the three-way pipes 70 is communicated with the first liquid outlet 82 and the third liquid outlet 86, the first liquid inlet 81, the second liquid inlet 83 and the third liquid inlet 85 are respectively connected with a reagent bottle 90, and the reagent bottle 90 is filled with corresponding reagents as required, so as to mix and react any two reagents. Here, clear water can also be added into the reagent bottle 90, and the clear water is injected into the whole pipeline to clean the pipeline, so that the reagent remaining in the pipeline is prevented from polluting a mixer to be detected, and the accuracy of element content detection is ensured.
The implementation principle of the embodiment is as follows: three liquid inlets 41 of the sample injection valve 40 are respectively communicated with a connector of a three-way pipe 70, a liquid dividing block 80 is provided with a first liquid inlet 81, a second liquid inlet 83 and a third liquid inlet 85, wherein the first liquid inlet 81 is communicated with two first liquid outlets 82, the second liquid inlet 83 is communicated with two second liquid outlets 84, the third liquid inlet 85 is communicated with two third liquid outlets 86, one of the three-way pipes 70 is communicated with the first liquid outlet 82 and the second liquid outlet 84, one of the three-way pipes 70 is communicated with the second liquid outlet 84 and the third liquid outlets 86, one of the three-way pipes 70 is communicated with the first liquid outlet 82 and the third liquid outlet 86, and the first liquid inlet 81, the second liquid inlet 83 and the third liquid inlet 85 are respectively connected with three reagents, so that the mixing and reaction of any two reagents are realized; the sample injection valve 40 realizes the switching of different mixed reagents, and further realizes the detection of different mixed reagents; any mixed reagent is switched through the sample injection valve 40, the mixed reagent is injected into the current carrying pipeline 10, flows into the reactor 50 to generate a color reaction, a signal value of the mixed reagent is measured in the detector 60, and the element content of the sample to be measured is measured according to a standard curve method.
The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.
Claims (8)
1. The utility model provides a flow injection analysis appearance, includes current-carrying pipeline (10), the intercommunication has constant flow pump (20), reactor (50) and detector (60) in proper order on current-carrying pipeline (10), its characterized in that: the current-carrying pipeline (10) positioned between the constant flow pump (20) and the reactor (50) is communicated with a sample adding assembly;
the sample adding assembly comprises a peristaltic pump (30), a sample injection valve (40) and a three-way pipe (70), wherein the outlet of the peristaltic pump (30) is communicated with the current-carrying pipeline (10), and the inlet of the peristaltic pump is communicated with the liquid outlet (42) of the sample injection valve (40); the liquid inlet (41) of the sample injection valve (40) is communicated with one interface of the three-way pipe (70), and the other two interfaces of the three-way pipe (70) are respectively communicated with a reagent.
2. A flow injection analyzer according to claim 1, wherein: the sample adding component also comprises a liquid separating block (80);
the liquid separation block (80) is provided with a first liquid inlet (81), a second liquid inlet (83) and a third liquid inlet (85), and the first liquid inlet (81) is communicated with two first liquid outlets (82); the second liquid inlet (83) is communicated with two second liquid outlets (84); the third liquid inlet (85) is communicated with two third liquid outlets (86).
3. A flow injection analyzer according to claim 2, wherein: the sample injection valve (40) is a three-way valve.
4. A flow injection analyzer according to claim 3, wherein: the three liquid inlets (41) of the sample injection valve (40) are respectively communicated with one interface of the three-way pipe (70).
5. A flow injection analyzer according to claim 4, wherein: wherein one of said tee (70) is in communication with said first liquid outlet (82) and said second liquid outlet (84);
wherein one of said tee (70) is in communication with said second liquid outlet (84) and said third liquid outlet (86);
wherein one of said tee (70) is in communication with said first liquid outlet (82) and said third liquid outlet (86).
6. A flow injection analyzer according to claim 5, wherein: the first liquid inlet (81), the second liquid inlet (83) and the third liquid inlet (85) are respectively connected with a reagent bottle (90).
7. A flow injection analyzer according to claim 1, wherein: the reactor (50) is a screw reactor (50).
8. A flow injection analyzer according to claim 1, wherein: the detector (60) is a spectrophotometry detector (60).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020114848.8U CN211478079U (en) | 2020-01-17 | 2020-01-17 | Flow injection analyzer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020114848.8U CN211478079U (en) | 2020-01-17 | 2020-01-17 | Flow injection analyzer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211478079U true CN211478079U (en) | 2020-09-11 |
Family
ID=72363608
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020114848.8U Active CN211478079U (en) | 2020-01-17 | 2020-01-17 | Flow injection analyzer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211478079U (en) |
-
2020
- 2020-01-17 CN CN202020114848.8U patent/CN211478079U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Reis et al. | Multicommutation in flow analysis. Part 1. Binary sampling: concepts, instrumentation and spectrophotometric determination of iron in plant digests | |
| US20200222897A1 (en) | In-situ analyzer for nutritive salt and nutritive salt content analysis method | |
| CN100541172C (en) | The method of fastly analyzing chemical oxygen demand by high-pressure flowing injection | |
| GB1597905A (en) | Programmable continuous flow analyzer | |
| CN101776581A (en) | Method for photometric analysis of trace pollutant in water sample and device thereof | |
| CN103837530A (en) | Simultaneous online analysis method for nitrite and nitrate in water sample and test sample treatment device thereof | |
| CN101793902A (en) | Device for fluidly injecting and rapidly analyzing residual chlorine of water quality and analysis method thereof | |
| CN1140799C (en) | Sequential injection method for automatically monitoring COD, ammoniacal nitrogen and pH value of water and its integrated equipment | |
| CN110470650A (en) | A kind of multi-mode water quality heavy metal on-line monitoring system | |
| CN103785314A (en) | Mixer and circulating type photometric testing automatic analyzer | |
| CN100478678C (en) | Method for analyzing phosphate in sea water and estuary water | |
| CN108872420B (en) | A kind of instrument and method detecting soluble organic nitrogen | |
| CN105738361B (en) | Permanganate index automatic analyzer and analysis method in water | |
| CN211478079U (en) | Flow injection analyzer | |
| CN102980858A (en) | Small-size sequential injection nitride analysis system | |
| CN201210146Y (en) | Water quality on-line monitoring system | |
| CN214668555U (en) | Water quality on-line monitoring system | |
| CN202903673U (en) | Full-automatic quick water quality measuring system with hexavalent chromium | |
| Bulatov et al. | The Stepwise Injection Analysis as a New Opportunity for Automation of Chemical Analysis of Liquid, Gaseous and Solid-Phase Samples Original Paper | |
| CN103399164A (en) | System for rapidly measuring sulfate radical concentration on line | |
| CN214374322U (en) | Flow analyzer pipeline module for detecting inorganic nitrogen content in soil | |
| CN214585054U (en) | Quantitative analysis device for trace urea | |
| Zagatto et al. | Detecting and circumventing sources of inaccuracy in flow analysis | |
| Honorato et al. | A monosegmented flow titration for the spectrophotometric determination of total acidity in vinegar | |
| CN203376335U (en) | Sulfate radical concentration on-line fast measuring system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |