CN109541248A - A kind of flow injection reaction pool device - Google Patents
A kind of flow injection reaction pool device Download PDFInfo
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- CN109541248A CN109541248A CN201811510715.6A CN201811510715A CN109541248A CN 109541248 A CN109541248 A CN 109541248A CN 201811510715 A CN201811510715 A CN 201811510715A CN 109541248 A CN109541248 A CN 109541248A
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- sample
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- commutation mouth
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N35/00—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor
- G01N35/08—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor using a stream of discrete samples flowing along a tube system, e.g. flow injection analysis
- G01N35/085—Flow Injection Analysis
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/24—Stationary reactors without moving elements inside
- B01J19/2415—Tubular reactors
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Abstract
The invention discloses a kind of flow injections to react pool device, including sequentially connected infusion device, the first forward reaction pipe, at least one channel unit and detector；The channel unit includes: concatenated first choice valve, back reaction pipe, the second selector valve and the second forward reaction pipe；It further include the first sample loop, the both ends of first sample loop are connect with the first choice valve respectively, second sample loop, the both ends of second sample loop are connect with second selector valve respectively, when all samples enter in first sample loop, the first choice valve is for switching flow direction of the sample in first sample loop, and when all samples enter in second sample loop, second selector valve is for switching flow direction of the sample in second sample loop.This Shen can switch the flow direction of fluid, so that effect is better mixed in reagent and sample acquisition.
Description
Technical field
The present invention relates to flow injection instruments fields, and in particular to a kind of flow injection reaction pool device.
Background technique
The liquid flow direction of existing flow injection instruments is all to move in one direction, and liquid flows in pipeline, examination
Sample and current-carrying usually pass through an infusion device and one end forward direction in waller effect and the dispersion mixing under dropping down stream effect of liquid
Piping connection, positive pipeline are connect with detector again, but due to being limited by pipeline total length, sample and reaction reagent it is anti-
Answer insufficient, the mixing of the concentration of sample strip is in the state of insufficient, since the flow rate accuracy and flow speed stability of pump miss
Difference is constantly present, and test results are shown in figure 4, so that using peak height come the method for quantitative concentrations, the weight of peak height testing result
There is a certain error for existing property.The problem of above problem is this field urgent need to resolve.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of a kind of flow injections that sample strip concentration is more fully mixed
React pool device.
In order to solve the above technical problem, the present invention provides scheme be: a kind of flow injection reacts pool device, including according to
The infusion device of secondary connection, the first forward reaction pipe, at least one channel unit and detector；
The channel unit includes: concatenated first choice valve, back reaction pipe, the second selector valve and the second forward reaction
Pipe；
It further include the first sample loop, the both ends of first sample loop are connect with the first choice valve respectively,
Second sample loop, the both ends of second sample loop are connect with second selector valve respectively,
When all samples enter in first sample loop, the first choice valve is for switching the sample in institute
The flow direction in the first sample loop is stated,
When all samples enter in second sample loop, second selector valve is for switching the sample in institute
State the flow direction in the second sample loop.
Further, the length of the first forward reaction pipe and all second forward reaction pipes and being equal to all
The length of the back reaction pipe and.
Further, the first choice valve includes sample inlet, sample export, the first commutation mouth and the second commutation
Mouthful, the sample inlet is used for sample introduction, and the sample export is for going out sample, the first commutation mouth and the second commutation mouth point
It is not connect with the both ends of first sample loop；
The first choice valve can switch in state one and state two:
The state one: the sample inlet is connected with the first commutation mouth, the second commutation mouth and the sample
Outlet connection；
The state two: the sample inlet is connected with the second commutation mouth, the first commutation mouth and the sample
Outlet connection.
Further, second selector valve includes sample inlet, sample export, the first commutation mouth and the second commutation
Mouthful, the sample inlet is used for sample introduction, and the sample export is for going out sample, the first commutation mouth and the second commutation mouth point
It is not connect with the both ends of second sample loop；
The first choice valve can switch in state one and state two:
The state one: the sample inlet is connected with the first commutation mouth, the second commutation mouth and the sample
Outlet connection；
The state two: the sample inlet is connected with the second commutation mouth, the first commutation mouth and the sample
Outlet connection.
Further, the channel unit is one.
Further, the channel unit is two.
Further, the infusion device includes sample channel, reagent passage and sampling pump, the sample channel and institute
It states reagent passage and is connect by the sampling pump with the first flow path unit.
Further, the sampling pump is multi-channel pump.
The application further provides a kind of blade inverting fluid unit for flow injection reaction pool device, comprising: string
First choice valve, back reaction pipe, the second selector valve and the second forward reaction pipe of connection；
It further include the first sample loop, the both ends of first sample loop are connect with the first choice valve respectively,
Second sample loop, the both ends of second sample loop are connect with second selector valve respectively,
When all samples enter in first sample loop, the first choice valve is for switching the sample in institute
The flow direction in the first sample loop is stated,
When all samples enter in second sample loop, second selector valve is for switching the sample in institute
State the flow direction in the second sample loop.
Beneficial effects of the present invention: this Shen can switch the flow direction of fluid, so that reagent and sample obtain more
Mixed effect well.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the application.
Fig. 2 is the flow diagram of the application, flow path schematic diagram when A is sample introduction, and B is that sample is all introduced into the first sample
Flow path schematic diagram when product ring, C are flow path schematic diagram when sample is all introduced into the second sample loop.
Fig. 3 is the sample strip distribution schematic diagram using the application test.
Fig. 4 is the sample strip distribution schematic diagram using prior art test.
Figure label explanation: infusion device 1, the first forward reaction pipe 2a, the second forward reaction pipe 2b, first choice valve
3a, the second selector valve 3b, sample inlet 31, sample export 32, first commutate mouth 33, second commutate mouth 34, back reaction pipe 4,
First sample loop 5a, the second sample loop 5b, detector 6.
Specific embodiment
The present invention will be further explained below with reference to the attached drawings and specific examples, so that those skilled in the art can be with
It more fully understands the present invention and can be practiced, but illustrated embodiment is not as a limitation of the invention.
As shown in Figure 1, a kind of flow injection reacts pool device, including sequentially connected infusion device 1, the first forward reaction
Pipe 2a, at least one channel unit and detector 6.
Wherein, infusion device 1 includes sample channel, reagent passage and sampling pump, and the sample channel and the reagent are logical
Road is connect by the sampling pump with the first flow path unit, and the sampling pump can be multi-channel pump.
Each channel unit include: concatenated first choice valve 3a, back reaction pipe 4, the second selector valve 3b and second just
To reaction tube 2b, wherein first choice valve 3a is as starting point, and the second forward reaction pipe 2b is as end；First sample loop 5a
Both ends connect respectively with the first choice valve 3a, the both ends of the second sample loop 5b respectively with the second selector valve 3b connect
It connects.
As shown in Fig. 2 (B), when all samples enter in the first sample loop 5a, the first choice valve 3a is used
In switching the flow direction of the sample in the first sample loop 5a,
As shown in Fig. 2 (C), when all samples enter in the second sample loop 5b, the second selector valve 3b is used
In flow direction of the switching sample in the second sample loop 5b.
Specifically, in this application, the first sample loop 5a and the second sample loop 5b structure are consistent, it is with the first sample loop 5a
Example, first choice valve 3a include sample inlet 31, the commutation mouth 33 of sample export 32, first and the second commutation mouth 34, the sample
Import 31 be used for sample introduction, the sample export 32 for go out sample, first commutation mouth 33 and second commutation mouth 34 respectively with the first sample
The both ends of product ring 5a connect, it should be understood that the first commutation mouth 33 and the second commutation mouth 34 are distinguished in the second selector valve 3b
It is connect with the both ends of the second sample loop 5b；
First choice valve 3a and the second selector valve 3b can switch in state one and state two:
State one: sample inlet 31 and the first commutation mouth 33 connect, and the second commutation mouth 34 is connect with sample export 32；
State two: sample inlet 31 and the second commutation mouth 34 connect, and the first commutation mouth 33 is connect with sample export 32.
Reversal valve includes stator and rotor, can switch different states by rotor, and rotor can pass through motor
Driving.
The working principle of the application is, firstly, being injected into sample and reagent by infusion device 1 as shown in Fig. 2 (A)
In first forward reaction pipe 2a, first choice valve 3a is located at state one at this time, and sample and reagent forward direction enter the first sample loop
In 5a, after sample strip is completely into the first sample loop 5a, as shown in Fig. 2 (B), first choice valve 3a is switched at this time
The direction of motion of state two, sample changes, and under the action of infusion device 1, sample is redirected back into back reaction pipe 4
In the middle, commutation is completed, sample is redirected back by reaction response pipe in the second selector valve 3b again at this time, as shown in Fig. 2 (C),
By the way that the second selector valve 3b stateful one is switched to state two, then may be implemented to commutate to sample at this, so that sample
Forward flow is come back to, can be detected at this time by 6 pairs of experiments of detector, since sample is by commutating, the stream of sample
Dynamic direction changes, and under tube wall effect, the liquid by commutation more fully can be reacted and be mixed, to make
It can obtain with the accurate testing result of family, as shown in Figure 3.
It should be understood that in order to further improve mixed effect, multiple duplicate flow path lists are can be set in the application
Member is provided with a channel unit, including first choice valve 3a and the second selector valve 3b totally two choosings in the embodiment of the present application
Valve and the first forward reaction pipe 2a, the second forward reaction pipe 2b and back reaction pipe 5 totally three sections of reaction tubes are selected, another
In kind embodiment, channel unit can be set to two, including four selector valves and five Duan Guanlu, it should be understood that in order to
Mixed effect is improved, the number of channel unit can repeat to be arranged.
In addition, better mixed effect in order to obtain, the first forward reaction pipe 2a and all second forward reaction pipes
The length of 2b and equal to all back reaction pipes 4 length and, forward flow distance and the reverse flow road of sample can be made
Cheng Xiangtong, sample is available after the consistent movement of reactor back warp overtravel more fully to react, the central part of sample strip
Divide and is in a stable reaction balancing band.
The application can make similarly reaction length of pipe under conditions of, in reactor tube through reciprocating motion after,
Sample is adequately diluted under waller effect with practical, is dispersed and is reacted, and sample strip enters before detector 6 that there are one section of changes
The region of balance and stability is learned, the signal height in the region and the linear consistency of sample solution concentration are good, avoid the flow of infusion pump
The other factors bring error such as unstable, the stability that the detector 6 made detects signal obtains extraordinary improvement, to make
The reproducibility that result must be analyzed is greatly improved.
Embodiment described above is only to absolutely prove preferred embodiment that is of the invention and being lifted, protection model of the invention
It encloses without being limited thereto.Those skilled in the art's made equivalent substitute or transformation on the basis of the present invention, in the present invention
Protection scope within.Protection scope of the present invention is subject to claims.
Claims (9)
1. a kind of flow injection reacts pool device, which is characterized in that including sequentially connected infusion device, the first forward reaction
Pipe, at least one channel unit and detector；
The channel unit includes: concatenated first choice valve, back reaction pipe, the second selector valve and the second forward reaction pipe；
It further include the first sample loop, the both ends of first sample loop are connect with the first choice valve respectively,
And second sample loop, the both ends of second sample loop are connect with second selector valve respectively,
When all samples enter in first sample loop, the first choice valve is for switching the sample described the
Flow direction in a sample ring,
When all samples enter in second sample loop, second selector valve is for switching the sample described the
Flow direction in two sample loops.
2. flow injection as described in claim 1 reacts pool device, which is characterized in that the first forward reaction pipe and all
The length of the second forward reaction pipe and equal to all back reaction pipes length and.
3. flow injection as described in claim 1 reacts pool device, which is characterized in that the first choice valve include sample into
Mouth, sample export, the first commutation mouth and the second commutation mouth, the sample inlet are used for sample introduction, and the sample export is used to sample,
The first commutation mouth and the second commutation mouth are connect with the both ends of first sample loop respectively；
The first choice valve can switch in state one and state two:
The state one: the sample inlet is connected with the first commutation mouth, the second commutation mouth and the sample export
Connection；
The state two: the sample inlet is connected with the second commutation mouth, the first commutation mouth and the sample export
Connection.
4. flow injection as described in claim 1 reacts pool device, which is characterized in that second selector valve include sample into
Mouth, sample export, the first commutation mouth and the second commutation mouth, the sample inlet are used for sample introduction, and the sample export is used to sample,
The first commutation mouth and the second commutation mouth are connect with the both ends of second sample loop respectively；
The first choice valve can switch in state one and state two:
The state one: the sample inlet is connected with the first commutation mouth, the second commutation mouth and the sample export
Connection；
The state two: the sample inlet is connected with the second commutation mouth, the first commutation mouth and the sample export
Connection.
5. flow injection as described in claim 1 reacts pool device, which is characterized in that the channel unit is one.
6. flow injection as described in claim 1 reacts pool device, which is characterized in that the channel unit is two.
7. flow injection as described in claim 1 reacts pool device, which is characterized in that the infusion device includes that sample is logical
Road, reagent passage and sampling pump, the sample channel and the reagent passage pass through the sampling pump and the first flow path list
Member connection.
8. flow injection as described in claim 1 reacts pool device, which is characterized in that the sampling pump is multi-channel pump.
9. a kind of blade inverting fluid unit for flow injection reaction pool device, comprising: concatenated first choice valve, back reaction
Pipe, the second selector valve and the second forward reaction pipe；
It further include the first sample loop, the both ends of first sample loop are connect with the first choice valve respectively,
Second sample loop, the both ends of second sample loop are connect with second selector valve respectively,
When all samples enter in first sample loop, the first choice valve is for switching the sample described the
Flow direction in a sample ring,
When all samples enter in second sample loop, second selector valve is for switching the sample described the
Flow direction in two sample loops.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811510715.6A CN109541248B (en) | 2018-12-11 | 2018-12-11 | Flow injection reaction tank device and reversing fluid unit for same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811510715.6A CN109541248B (en) | 2018-12-11 | 2018-12-11 | Flow injection reaction tank device and reversing fluid unit for same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109541248A true CN109541248A (en) | 2019-03-29 |
| CN109541248B CN109541248B (en) | 2023-09-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811510715.6A Active CN109541248B (en) | 2018-12-11 | 2018-12-11 | Flow injection reaction tank device and reversing fluid unit for same |
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Cited By (1)
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| CN116618106A (en) * | 2023-07-21 | 2023-08-22 | 深圳赛陆医疗科技有限公司 | Fluid transportation system with variable flow direction, detection system and fluid transportation method thereof |
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