CN212459561U - Double-channel ion chromatography detection system and sample injector with series double-valve structure - Google Patents
Double-channel ion chromatography detection system and sample injector with series double-valve structure Download PDFInfo
- Publication number
- CN212459561U CN212459561U CN202020939758.2U CN202020939758U CN212459561U CN 212459561 U CN212459561 U CN 212459561U CN 202020939758 U CN202020939758 U CN 202020939758U CN 212459561 U CN212459561 U CN 212459561U
- Authority
- CN
- China
- Prior art keywords
- sample
- valve
- mobile phase
- inlet
- ion chromatography
- 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
Abstract
The utility model discloses a binary channels ion chromatography detection system and series connection bivalve structure injector thereof, this series connection bivalve structure injector includes first access valve and second access valve, first access valve is used for connecting a detection channel of binary channels ion chromatography detection system, the second access valve is used for connecting another detection channel of binary channels ion chromatography detection system, first access valve is equipped with a plurality of valve ports including the first interface that is used for connecting the chromatographic column, the first sample import that is used for the introduction, and the first sample export that is used for going out the appearance; the second sample injection valve is provided with a plurality of valve ports, including a second connecting port for connecting the chromatographic column, a second sample inlet for sample injection and a second sample outlet for sample outlet; the first sample outlet is connected with the second sample inlet through a pipeline, and the second sample outlet is used for being connected with the waste liquid collecting unit. The sample injector with the series double-valve structure is suitable for a double-channel ion chromatography detection system, can effectively reduce the volume of equipment, and is more convenient to operate and use.
Description
Technical Field
The utility model relates to an ion chromatography technical field especially relates to binary channels ion chromatography detecting system and series connection bivalve structure injector thereof.
Background
For a single-channel ion chromatography detection system, only a single-valve sample injector (usually a six-way valve sample injector) is needed to realize single sample detection of anions or cations of a single sample, which is the simplest structure of the ion chromatography system. However, for more complex systems, such as a yin-yang dual-channel ion chromatography detection system and a high-low concentration dual-channel ion chromatography detection system, a single-valve sample injector needs to be separately equipped for each detection channel, and a sample conveying unit and a waste liquid collecting unit matched with the single-valve sample injector are needed.
Disclosure of Invention
The utility model discloses not enough to prior art, provide binary channels ion chromatography detecting system and series connection bivalve structure injector thereof, this series connection bivalve structure injector is applicable to binary channels ion chromatography detecting system and can effectively reduce equipment volume, and facilitates the operation and use more.
In order to achieve the above object, the utility model discloses a technical scheme be:
a kind of series connection double valve structure sample injector, is suitable for the double-channel ion chromatography detection system, the said series connection double valve structure sample injector is said and includes the first sample introduction valve and second sample introduction valve, the said first sample introduction valve is used for connecting a detection channel of the said double-channel ion chromatography detection system, the said second sample introduction valve is used for connecting another detection channel of the said double-channel ion chromatography detection system, the said first sample introduction valve has multiple valve ports including the first interface used for connecting the chromatographic column, the first sample inlet used for sample introduction, and the first sample outlet used for discharging the sample; the second sample injection valve is provided with a plurality of valve ports, including a second connecting port for connecting the chromatographic column, a second sample inlet for sample injection and a second sample outlet for sample outlet; the first sample outlet is connected with the second sample inlet through a pipeline, and the second sample outlet is used for being connected with a waste liquid collecting unit.
Preferably, the first sample injection valve and the second sample injection valve are both set as six-way valve sample injectors; the plurality of valve ports arranged on the first sample injection valve further comprise a first mobile phase inlet used for being connected with the mobile phase conveying unit, and a first quantitative ring port A and a first quantitative ring port B which are connected through a first quantitative ring; the plurality of valve ports arranged on the second sample injection valve further comprise a second flowing phase inlet used for being connected with the flowing phase conveying unit, and a second quantitative ring connector A and a second quantitative ring connector B which are connected through a second quantitative ring.
Preferably, the first mobile phase inlet is fluidly connectable to a first connector, the first quantitative loop connector a is fluidly connectable to a first sample inlet, the first quantitative loop connector B is fluidly connectable to a first sample outlet, the second mobile phase inlet is fluidly connectable to a second connector, the second quantitative loop connector a is fluidly connectable to a second sample inlet, and the second quantitative loop connector B is fluidly connectable to a second sample outlet.
Preferably, the sampling device further comprises a controller for controlling the opening and closing of each valve port of the first sampling valve and the second sampling valve, and the controller is in signal connection with the first sampling valve and the second sampling valve.
The utility model also discloses a binary channels ion chromatography detecting system, including first test channel, second test channel, sample transport unit and waste liquid collection unit, include the double-valve structure sample injector of establishing ties, first introduction valve is connected first test channel, the second introduction valve is connected the second test channel, the sample transport unit connection first sample import, the waste liquid collection unit connection the second sample export.
Preferably, the first detection channel comprises a first mobile phase conveying unit, a first chromatographic column and a first detector, the second detection channel comprises a second mobile phase conveying unit, a second chromatographic column and a second detector, the first mobile phase conveying unit is connected with the first mobile phase inlet, the first connecting port is connected with the first chromatographic column, and the first chromatographic column is connected with the first detector; the second sample injection valve is connected with the second detection channel, the second mobile phase conveying unit is connected with the second mobile phase inlet, the second connecting port is connected with the second chromatographic column, and the second chromatographic column is connected with the second detector.
Preferably, the dual-channel ion chromatography detection system is a liquid chromatography system, the first mobile phase conveying unit includes a first leaching solution tank and a first liquid feed pump, the first leaching solution tank is connected to a liquid inlet of the first liquid feed pump through a pipeline, and a liquid outlet of the first liquid feed pump is connected to the first mobile phase inlet through a pipeline; the second mobile phase conveying unit comprises a second leaching solution tank and a second liquid supply pump, the second leaching solution tank is connected with a liquid inlet of the second liquid supply pump through a pipeline, and a liquid outlet of the second liquid supply pump is connected with the second mobile phase inlet through a pipeline.
Preferably, the waste liquid collecting unit comprises a waste liquid pool, and the first detector and the second detector are both set as conductivity detectors.
Compared with the prior art, the beneficial effects of the utility model are that: the utility model provides a binary channels ion chromatography detecting system and series connection bivalve structure injector thereof, this series connection bivalve structure injector is applicable to binary channels ion chromatography detecting system and can effectively reduce equipment volume, and makes things convenient for the operation to use more.
Drawings
FIG. 1 is a schematic structural diagram of a conventional dual-channel ion chromatography detection system;
FIG. 2 is a schematic structural diagram of a dual-channel ion chromatography detection system according to this embodiment;
FIG. 3 shows a sample injector with a tandem double valve structure according to the present embodiment;
in the above figures, the solid lines of fig. 1 and 2 represent connections by pipes.
Detailed Description
The present invention is specifically described below by way of exemplary embodiments. It should be understood, however, that elements, structures and features of one embodiment may be beneficially incorporated in other embodiments without further recitation.
It should be noted that in the description of the present invention, the terms "inside", "outside", "upper", "lower", "left", "right", "front", "rear", etc. indicate the positional relationship based on the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.
As shown in fig. 3, a sample injector with a serial double-valve structure is suitable for a dual-channel ion chromatography detection system, the sample injector with the serial double-valve structure comprises a first sample injection valve 1 and a second sample injection valve 2, the first sample injection valve 1 is used for connecting one detection channel of the dual-channel ion chromatography detection system, the second sample injection valve 2 is used for connecting the other detection channel of the dual-channel ion chromatography detection system, the first sample injection valve 1 is provided with a plurality of valve ports, and comprises a first connection port 12 for connecting a chromatography column, a first sample inlet 14 for sample injection, and a first sample outlet 15 for sample outlet; the second sample injection valve 2 is provided with a plurality of valve ports including a second connecting port 22 for connecting a chromatographic column, a second sample inlet 24 for sample injection and a second sample outlet 25 for sample outlet; the first sample outlet 15 is connected to the second sample inlet 24 via a pipe 3, and the second sample outlet 25 is connected to the waste collection unit 7.
As shown in fig. 2, a dual-channel ion chromatography detection system comprises a first detection channel 4, a second detection channel 5, a sample delivery unit 6 and a waste liquid collection unit 7, including the sample injector with a serial dual-valve structure, wherein the first sample injection valve 1 is connected to the first detection channel 4, the second sample injection valve 2 is connected to the second detection channel 5, the sample delivery unit 6 is connected to the first sample inlet 14, and the waste liquid collection unit 7 is connected to the second sample outlet 25.
As shown in fig. 1, two detection channels of the existing dual-channel ion chromatography detection system are all independently provided with sample valves, and the two sample valves are respectively connected with the sample conveying units 6 and the waste liquid collecting units 7 corresponding to the two sample valves, the structure of the system must include two sets of sample conveying units 6 and two sets of waste liquid collecting units 7, the equipment volume of the existing dual-channel ion chromatography detection system is large, the system needs to occupy a large installation space, and when the dual-channel simultaneous test is carried out, two sets of sample conveying units 6 are required to be simultaneously controlled by a tester, the operation process is complex, and the system is inconvenient to operate and use. In order to solve the disadvantages of the existing dual-channel ion chromatography detection system, the sample injector with the serial dual-valve structure of the embodiment connects the first sample outlet 15 of the first sample valve 1 and the second sample inlet 24 of the second sample valve 2 through the pipeline 3, and connects the first sample inlet 14 of the first sample valve 1 with the sample conveying unit 6, the second sample outlet 25 of the second sample valve 2 is connected with the waste liquid collecting unit 7, the sample to be detected is input into the first sample valve 1 through the sample conveying unit 6, flows out from the first sample outlet 15 after flowing through the first sample valve 1 and then flows into the second sample inlet 24 of the second sample valve 2, i.e. the dual-channel ion chromatography detection system adopting the sample injector with the serial dual-valve structure only needs to be provided with one sample conveying unit 6 and one waste liquid collecting unit 7, and only one sample conveying unit 6 is operated to realize the dual-channel simultaneous test, which can effectively reduce the volume of the device, and is more convenient to operate and use.
Specifically, the first sample injection valve 1 and the second sample injection valve 2 are both set as six-way valve sample injectors; the plurality of valve ports of the first sample injection valve 1 further comprise a first mobile phase inlet 11 for connecting a mobile phase conveying unit, and a first quantitative ring port A13 and a first quantitative ring port B16 which are connected through a first quantitative ring 17; the plurality of valve ports of the second sample injection valve 2 further include a second mobile phase inlet 21 for connecting a mobile phase delivery unit, and a second quantitative ring port a23 and a second quantitative ring port B26 connected by a second quantitative ring 27.
Specifically, the first mobile phase inlet 11 is in fluid communication with the first connection port 12, the first quantitative loop port a13 is in fluid communication with the first sample inlet 14, the first quantitative loop port B16 is in fluid communication with the first sample outlet 15, the second mobile phase inlet 21 is in fluid communication with the second connection port 22, the second quantitative loop port a23 is in fluid communication with the second sample inlet 24, and the second quantitative loop port B26 is in fluid communication with the second sample outlet 25.
Specifically, the first detection channel 4 includes a first mobile phase conveying unit, a first chromatographic column 43 and a first detector 44, the second detection channel 5 includes a second mobile phase conveying unit, a second chromatographic column 53 and a second detector 54, the first mobile phase conveying unit is connected to the first mobile phase inlet 11, the first connection port 12 is connected to the first chromatographic column 43, and the first chromatographic column 43 is connected to the first detector 44; the second sample injection valve 2 is connected with the second detection channel 2, the second mobile phase conveying unit is connected with the second mobile phase inlet 21, the second connecting port 22 is connected with the second chromatographic column 53, and the second chromatographic column 53 is connected with the second detector 54.
Specifically, the device further comprises a controller for controlling the opening and closing of each valve port of the first sample injection valve 1 and the second sample injection valve 2, and the controller is in signal connection with the first sample injection valve 1 and the second sample injection valve 2. Compared with the prior double-channel ion chromatography detection system which needs to control the two sample valves to sample respectively through the respective controllers of the two sample valves to control the detection process of the two detection channels, the open-close state of the first sample inlet 14 of the first sample valve 1, the first connecting port 12 and the second connecting port 22 of the second sample valve 2 can be accurately controlled through the controller, and the simultaneous triggering of two detection paths can be realized through the single sample injection control of a single sample more easily, so that the double-channel detection can be realized, for example, the simultaneous detection of anions and cations or the simultaneous detection of high and low concentration ions can be realized.
Specifically, the dual-channel ion chromatography detection system is a liquid chromatography system, the first mobile phase conveying unit includes a first eluent pool 41 and a first liquid feed pump 42, the first eluent pool 41 is connected to a liquid inlet of the first liquid feed pump 42 through a pipeline 3, and a liquid outlet of the first liquid feed pump 42 is connected to the first mobile phase inlet 11 through a pipeline 3; the second mobile phase conveying unit comprises a second leaching solution tank 51 and a second liquid supply pump 52, the second leaching solution tank 51 is connected with a liquid inlet of the second liquid supply pump 52 through a pipeline 3, and a liquid outlet of the second liquid supply pump 52 is connected with the second mobile phase inlet 21 through a pipeline 3.
Specifically, the waste liquid collecting unit 7 includes a waste liquid pool, and the first detector 44 and the second detector 54 are both conductivity detectors.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in other forms, and any person skilled in the art may use the above-mentioned technical contents to change or modify the equivalent embodiment into equivalent changes and apply to other fields, but any simple modification, equivalent change and modification made to the above embodiments according to the technical matters of the present invention will still fall within the protection scope of the technical solution of the present invention.
Claims (8)
1. A kind of series connection double valve structure sample injector, is suitable for the double-channel ion chromatography detection system, the said series connection double valve structure sample injector state includes the first sample introduction valve and the second sample introduction valve, the said first sample introduction valve is used for connecting a detection channel of the said double-channel ion chromatography detection system, the said second sample introduction valve is used for connecting another detection channel of the said double-channel ion chromatography detection system, characterized by that, the said first sample introduction valve has multiple valve ports including the first interface used for connecting the chromatographic column, the first sample inlet used for sample introduction, and the first sample outlet used for sample discharge; the second sample injection valve is provided with a plurality of valve ports, including a second connecting port for connecting the chromatographic column, a second sample inlet for sample injection and a second sample outlet for sample outlet; the first sample outlet is connected with the second sample inlet through a pipeline, and the second sample outlet is used for being connected with a waste liquid collecting unit.
2. The in-line sample injector with double valve structure as claimed in claim 1, wherein the first sample injection valve and the second sample injection valve are both provided as six-way valve sample injectors; the plurality of valve ports arranged on the first sample injection valve further comprise a first mobile phase inlet used for being connected with the mobile phase conveying unit, and a first quantitative ring port A and a first quantitative ring port B which are connected through a first quantitative ring; the plurality of valve ports arranged on the second sample injection valve further comprise a second flowing phase inlet used for being connected with the flowing phase conveying unit, and a second quantitative ring connector A and a second quantitative ring connector B which are connected through a second quantitative ring.
3. The in-line dual-valve cartridge of claim 2, wherein the first mobile phase inlet is in fluid communication with a first connector, the first quantity loop port a is in fluid communication with a first sample inlet, the first quantity loop port B is in fluid communication with a first sample outlet, the second mobile phase inlet is in fluid communication with a second connector, the second quantity loop port a is in fluid communication with a second sample inlet, and the second quantity loop port B is in fluid communication with a second sample outlet.
4. The sample injector with the series double-valve structure of claim 1, further comprising a controller for controlling the opening and closing of each valve port of the first sample injection valve and the second sample injection valve, wherein the controller is in signal connection with the first sample injection valve and the second sample injection valve.
5. A dual-channel ion chromatography detection system, comprising a first detection channel, a second detection channel, a sample conveying unit and a waste liquid collecting unit, wherein the dual-valve structure sample injector comprises the serial dual-valve structure sample injector as claimed in any one of claims 1 to 4, the first sample injection valve is connected with the first detection channel, the second sample injection valve is connected with the second detection channel, the sample conveying unit is connected with the first sample inlet, and the waste liquid collecting unit is connected with the second sample outlet.
6. The dual channel ion chromatography detection system of claim 5, comprising the in-line dual valve injector of claim 2, wherein the first detection channel comprises a first mobile phase delivery unit, a first chromatography column and a first detector, the second detection channel comprises a second mobile phase delivery unit, a second chromatography column and a second detector, the first mobile phase delivery unit is connected to the first mobile phase inlet, the first connection port is connected to the first chromatography column, and the first chromatography column is connected to the first detector; the second mobile phase conveying unit is connected with the second mobile phase inlet, the second connecting port is connected with the second chromatographic column, and the second chromatographic column is connected with the second detector.
7. The dual-channel ion chromatography detection system according to claim 6, wherein the dual-channel ion chromatography detection system is a liquid chromatography system, the first mobile phase delivery unit comprises a first washing solution tank and a first liquid feed pump, the first washing solution tank is connected with a liquid inlet of the first liquid feed pump through a pipeline, and a liquid outlet of the first liquid feed pump is connected with the first mobile phase inlet through a pipeline; the second mobile phase conveying unit comprises a second leaching solution tank and a second liquid supply pump, the second leaching solution tank is connected with a liquid inlet of the second liquid supply pump through a pipeline, and a liquid outlet of the second liquid supply pump is connected with the second mobile phase inlet through a pipeline.
8. The dual channel ion chromatography detection system of claim 6, wherein the waste collection unit comprises a waste reservoir, and the first and second detectors are each provided as conductivity detectors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020939758.2U CN212459561U (en) | 2020-05-28 | 2020-05-28 | Double-channel ion chromatography detection system and sample injector with series double-valve structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020939758.2U CN212459561U (en) | 2020-05-28 | 2020-05-28 | Double-channel ion chromatography detection system and sample injector with series double-valve structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212459561U true CN212459561U (en) | 2021-02-02 |
Family
ID=74477212
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020939758.2U Active CN212459561U (en) | 2020-05-28 | 2020-05-28 | Double-channel ion chromatography detection system and sample injector with series double-valve structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212459561U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115326997A (en) * | 2022-09-13 | 2022-11-11 | 广州禾信仪器股份有限公司 | Double-channel chromatographic detector and organic pollutant detection method |
-
2020
- 2020-05-28 CN CN202020939758.2U patent/CN212459561U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115326997A (en) * | 2022-09-13 | 2022-11-11 | 广州禾信仪器股份有限公司 | Double-channel chromatographic detector and organic pollutant detection method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10557834B2 (en) | Auto-sampling system for automatically acquiring a sample | |
| CN102171562B (en) | Liquid chromatography device and liquid chromatography | |
| EP3642613B1 (en) | Online dilution for a liquid chromatography system using a sample metering pump | |
| CN212459561U (en) | Double-channel ion chromatography detection system and sample injector with series double-valve structure | |
| CN110596306A (en) | Water quality detection pipeline system and water quality detection method | |
| CN106289912B (en) | Pretreatment device for online monitoring of water | |
| EP2343549B1 (en) | Analyzing device and method for controlling same | |
| CN206378411U (en) | A kind of calibration system in online analytical instrument | |
| JPWO2016098169A1 (en) | Liquid chromatograph | |
| CN104455559A (en) | Multi-column-position column valve and chromatography system achieving multi-column positive and reverse flow and bypass function on basis of multi-column-position column valve | |
| CN213885075U (en) | Continuous flow chromatography device | |
| CN215250532U (en) | Protein chromatography device | |
| CN207816912U (en) | A kind of laboratory separation and purification of protein system | |
| CN209984986U (en) | Single-double pump full-automatic chromatography system | |
| CN215822406U (en) | Flow dividing and purifying flow path control system | |
| CN214473046U (en) | Multidimensional liquid chromatography system | |
| CN217092185U (en) | Chromatography purification system | |
| CN102243217B (en) | Backwashing flow path system of glycated hemoglobin analyzer | |
| US20220128521A1 (en) | Autosampler for chromatograph | |
| CN106979985B (en) | Liquid chromatogram atomic spectrum combined system | |
| CN220084490U (en) | Multithread sewage sample enrichment system | |
| CN111249770A (en) | Production type continuous flow chromatography system | |
| CN216986393U (en) | Laboratory gradient chromatography system | |
| CN204275566U (en) | The tomographic system of the positive reflux of twin columns and bypass functionality is realized based on single seven logical valves | |
| CN111077264B (en) | Method for realizing switching use of double systems of single ion chromatograph |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220812 Address after: 266000 No. 47, Yuting Road, Zhaogezhuang community building materials Industrial Park, Liuting street, Chengyang District, Qingdao, Shandong Province Patentee after: Qingdao Minghua Environmental Technology Co.,Ltd. Address before: 266200 800 meters south of houtaolin community residents committee, Chengyang street, Chengyang District, Qingdao City, Shandong Province Patentee before: QINGDAO LUHAI PHOTOELECTRIC TECHNOLOGY CO.,LTD. |
|
| TR01 | Transfer of patent right |