CN206594123U - A kind of monitor switch of liquid chromatograph - Google Patents
A kind of monitor switch of liquid chromatograph Download PDFInfo
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- CN206594123U CN206594123U CN201720052190.0U CN201720052190U CN206594123U CN 206594123 U CN206594123 U CN 206594123U CN 201720052190 U CN201720052190 U CN 201720052190U CN 206594123 U CN206594123 U CN 206594123U
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- liquid chromatograph
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Abstract
The utility model discloses a kind of monitor switch of liquid chromatograph, including computer, and the liquid chromatograph communicated with computer, multiple detection branch are installed between its liquid phase post of the liquid chromatograph and back pressure regulator；The different detector of one detection type is installed in each detection branch；Each detection branch input is also equipped with liquid channel magnetic valve；Its automatically controlled end of the liquid channel magnetic valve is electrically connected with drive circuit；The drive circuit input is electrically connected to controller；The controller is communicated by match circuit with computer；The detector is by detecting that selector channel module communicates with computer；Detection selector channel module communicates with controller.The monitor switch of liquid chromatograph of the present utility model, is coordinated using triple valve and the pump housing, realizes online wash cycles, without dismounting, you can complete the cleaning of chromatographic column.
Description
Technical field
The utility model is related to a kind of liquid chromatograph component, and in particular to a kind of monitor switching of liquid chromatograph
Device, belongs to liquid chromatograph technical field.
Background technology
Liquid chromatograph is the difference using mixture distribution ratio between liquid-solid or immiscible two kinds of liquid, to mixed
Compound is first separated, the instrument then analyzed and identified；System is by reservoir, pump, injector, chromatographic column, detector, recorder
Etc. several parts composition；The mobile phase of liquid chromatograph liquid chromatograph squeezes into system, sample solution warp by high-pressure pump in reservoir
Injector enters mobile phase, is loaded into by mobile phase in chromatographic column (stationary phase), because each component in sample solution is in two-phase
With different distribution coefficients, when being performed relative motion in two-phase, by the assigning process of repeated multiple times absorption-desorption, respectively
Component produces larger difference in translational speed, is separated into single component and is flowed out successively out of post, during by detector, sample
Product concentration is converted into electric signal and is sent to recorder, data with collection of illustrative plates form print high performance liquid chromatograph mainly have into
Sample system, transfusion system, piece-rate system, detecting system and data handling system, existing separate unit liquid phase only supply a type detection,
When a reagent needs to carry out polymorphic type detection, it is necessary to different types of liquid phase, its cost is high, and reagent waste is serious, it is impossible to shape
It is low into detection sequence or sequence operation automaticity.
Utility model content
To solve the above problems, the utility model proposes a kind of monitor switch of liquid chromatograph, using multiple
Detection branch, and the switching of detection branch is realized by magnetic valve, it can realize that the stream between liquid phase multi-detector is cut automatically
Change.
The monitor switch of liquid chromatograph of the present utility model, including computer, and the liquid phase communicated with computer
Chromatograph, multiple detection branch are provided between its liquid phase post of the liquid chromatograph and back pressure regulator；Each detection branch
On the different detector of a detection type is installed；Each detection branch input is also equipped with liquid channel magnetic valve；It is described
Its automatically controlled end of liquid channel magnetic valve is electrically connected with drive circuit；The drive circuit input is electrically connected to controller；It is described
Controller is communicated by match circuit with computer；The detector is by detecting that selector channel module communicates with computer；Institute
State detection selector channel module to communicate with controller, due to its detection data of the detector of each type, and send data back to meter
Calculation machine；Belong to prior art, therefore, the utility model can directly utilize all types of detector external member direct-assemblings, here, not right
Its physical circuit of single detector and the course of work are described in detail, and the utility model need to only pass through a detection selector channel module
Which is selected export, and detects that selector channel module can use existing data selector, will not be described in detail herein its tool
Body circuit structure；And the address code of data selector selection is sent by controller, when computer by match circuit to control
Device signal, controller confirms which way solenoid valve opened, that is, carries out which kind detection；Controller is corresponding with the magnetic valve
Data selector address code is sent to data selector, is realized the detection of the type and is detected the passback of data.
As preferred embodiment, gone back between the liquid phase post and back pressure regulator and be connected to circulating pump；The circulation
Pump input is provided with circulating electromagnetic valve；The circulating electromagnetic valve electrically connects controller；Same detection can be made by circulating pump
Reagent carries out cycle detection or in other detector channel cycle detections in same detector channel, more saves reagent, simultaneously
The combination or programmed sequence that many root chromatogram columns can be realized are used.
As preferred embodiment, be provided with each detection branch ultraviolet absorption detector, fluorescence detector,
One kind in differential refraction detector, electrochemical detector and chemiluminescence detector.
Further, the match circuit is made up of RS232 electrical level matching circuits.
Further, the drive circuit is the on-off circuit being made up of triode or metal-oxide-semiconductor.
Compared with prior art, the monitor switch of liquid chromatograph of the present utility model is used the utility model
Triple valve and the pump housing coordinate, and realize online wash cycles, without dismounting, you can complete the cleaning of chromatographic column.
Brief description of the drawings
Fig. 1 is the structural representation of embodiment 1 of the present utility model.
Fig. 2 is the schematic block circuit diagram of embodiment 1 of the present utility model.
Fig. 3 is the structural representation of embodiment 2 of the present utility model.
Embodiment
Embodiment 1：
As depicted in figs. 1 and 2, the monitor switch of liquid chromatograph of the present utility model, including computer 1, and with
The liquid chromatograph of computer communication, multiple detections are provided between its liquid phase post 3 of the liquid chromatograph and back pressure regulator 4
Branch road 5；The different detector 6 of one detection type is installed in each detection branch 5；Each input of detection branch 5 is also installed
There is liquid channel magnetic valve 7；Its automatically controlled end of the liquid channel magnetic valve 7 is electrically connected with drive circuit 8；The drive circuit 8
Input is electrically connected to controller 9；The controller 9 is communicated by match circuit 10 with computer 1；The detector 6 passes through
Detection selector channel module 2 communicates with computer 1；Detection selector channel module 2 communicates with controller 9, due to each class
It detects data with the detector of type, and sends data back to computer；Belong to prior art, therefore, the utility model can be directly sharp
With all types of detector external member direct-assemblings, here, its physical circuit of single detector and the course of work are not described in detail,
Which the utility model only need to select export by a detection selector channel module, and detecting selector channel module can adopt
Existing data selector is used, will not be described in detail herein its particular circuit configurations；And the address code of data selector selection passes through control
Device processed is sent, when computer by match circuit to controller signals, and controller confirms which way solenoid valve opened, that is, which is carried out
One type detection；Controller sends data selector address code corresponding with the magnetic valve to data selector, realizes such
The detection of type and the passback for detecting data.
Embodiment 2：
As shown in figure 3, the present embodiment and embodiment 1 are basically identical, wherein, the liquid phase post 3 and back pressure regulator 4 it
Between also and be connected to circulating pump 12；The input of circulating pump 12 is provided with circulating electromagnetic valve；The circulating electromagnetic valve electrical connection control
Device processed；By circulating pump 12 same detection reagent can be made to carry out cycle detection or in other detectors in same detector channel
Channel cycle is detected, reagent is more saved, while can realize that the combination of many root chromatogram columns or programmed sequence are used；Other structures
It is consistent with embodiment 1.
Wherein, ultraviolet absorption detector, fluorescence detector, differential pulse polarograpll are installed in each detection branch 5
One kind in device, electrochemical detector and chemiluminescence detector.The match circuit 10 is by RS232 electrical level matching circuit structures
Into.The on-off circuit that the drive circuit 8 is made up of triode or metal-oxide-semiconductor.
The monitor switch of liquid chromatograph of the present utility model, is coordinated, realization is followed online using triple valve and the pump housing
Ring is cleaned, without dismounting, you can complete the cleaning of chromatographic column.
Using it is above-mentioned according to desirable embodiment of the present utility model as enlightenment, pass through above-mentioned description, related work people
Member can carry out various changes and amendments in the range of without departing from this utility model technological thought completely.This reality
The content on specification is not limited to new technical scope, it is necessary to its technology is determined according to right
Property scope.
Claims (5)
1. a kind of monitor switch of liquid chromatograph, including computer, and the liquid chromatograph communicated with computer, it is special
Levy and be：Multiple detection branch are installed between its liquid phase post of the liquid chromatograph and back pressure regulator；Each detection branch
On the different detector of a detection type is installed；Each detection branch input is also equipped with liquid channel magnetic valve；It is described
Its automatically controlled end of liquid channel magnetic valve is electrically connected with drive circuit；The drive circuit input is electrically connected to controller；It is described
Controller is communicated by match circuit with computer；The detector is by detecting that selector channel module communicates with computer；Institute
Detection selector channel module is stated to communicate with controller.
2. the monitor switch of liquid chromatograph according to claim 1, it is characterised in that：The liquid phase post and back pressure
Gone back between adjuster and be connected to circulating pump；The circulating pump input is provided with circulating electromagnetic valve；The circulating electromagnetic valve is electrically connected
Connect controller.
3. the monitor switch of liquid chromatograph according to claim 1, it is characterised in that：Each detection branch
On ultraviolet absorption detector, fluorescence detector, differential refraction detector, electrochemical detector and chemiluminescence detector are installed
In one kind.
4. the monitor switch of liquid chromatograph according to claim 1, it is characterised in that：The match circuit by
RS232 electrical level matching circuits are constituted.
5. the monitor switch of liquid chromatograph according to claim 1, it is characterised in that：The drive circuit is served as reasons
The on-off circuit that triode or metal-oxide-semiconductor are constituted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720052190.0U CN206594123U (en) | 2017-01-17 | 2017-01-17 | A kind of monitor switch of liquid chromatograph |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720052190.0U CN206594123U (en) | 2017-01-17 | 2017-01-17 | A kind of monitor switch of liquid chromatograph |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206594123U true CN206594123U (en) | 2017-10-27 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720052190.0U Active CN206594123U (en) | 2017-01-17 | 2017-01-17 | A kind of monitor switch of liquid chromatograph |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206594123U (en) |
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2017
- 2017-01-17 CN CN201720052190.0U patent/CN206594123U/en active Active
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