CN202974733U - Concentrating cup assembly for pretreatment of food samples - Google Patents
Concentrating cup assembly for pretreatment of food samples Download PDFInfo
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- CN202974733U CN202974733U CN 201220474013 CN201220474013U CN202974733U CN 202974733 U CN202974733 U CN 202974733U CN 201220474013 CN201220474013 CN 201220474013 CN 201220474013 U CN201220474013 U CN 201220474013U CN 202974733 U CN202974733 U CN 202974733U
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- cup assembly
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Abstract
The utility model discloses a concentrating cup assembly for the pretreatment of food samples. The concentrating cup assembly comprises a bracket, a concentrating cup body is arranged on the bracket, a heating jacket is sleeved on the outside of the concentrating cup body, the combined part of the concentrating cup body and the heating jacket is provided with a temperature sensor, the upper end of the concentrating cup body is provided with an extract liquor inlet, a nitrogen gas inlet, a gas outlet and a cleaning needle which are communicated with the inside of the concentrating cup body, the lower end of the concentrating cup body is provided with an extract liquor outlet adapter and a liquid level detection device, and the liquid level detection device is arranged above the extract liquor outlet adapter. The concentrating cup assembly for the pretreatment of food samples disclosed by the utility model can realize the direct coupling of SPE (Solid-Phase Extraction) and PLE (pressurized liquid extraction), thereby realizing the online continuous processing of extraction and purification of food samples.
Description
Technical field
The utility model relates to a kind of online pre-concentration device, relates in particular to a kind of concentrated cup assembly for the food samples pre-treatment.
Background technology
Along with the develop rapidly of modern chemical analysis technology, analysis means is more and more towards quick, trace, accurate, automatic future development, and the pre-treatment of food samples has become the technical bottleneck that the restriction Modern Methods develops.Food samples other matrix relatively has more complicated matrix, so the pre-treatment of food samples is particularly important especially.
For the extraction of target compound in food samples, laboratory staff can adopt commercial " solvent extraction instrument PLE fast "; For the purification of food extract, laboratory staff can adopt commercial " solid-phase extracting instrument SPE ".PLE extraction food samples has advantage (every sample is less than 20min) fast and efficiently, can extract continuously a plurality of samples, and so all without function concentrated and that purify, in extract, the purification of the removal of solvent and impurity all needs extra operation to complete to the commodity machine; SPE can complete the purification (every sample is less than 20min) of small size food samples extract fast and efficiently, yet, because the extracting liquid volume of PLE is relatively large, need to before purifying, upper SPE concentrate, at present SPE can not with the direct coupling of PLE, can't realize food samples extraction, purify on-line continuous and process.
The utility model content
The purpose of this utility model is to provide a kind of and can with the concentrated cup assembly that is used for the food samples pre-treatment of SPE and the direct coupling of PLE, processes with the extraction, the purification on-line continuous that realize food samples.
For achieving the above object, the utility model provides a kind of concentrated cup assembly for the food samples pre-treatment, comprise support, concentrated cup is installed on described support, described concentrated cup overcoat has heating jacket, the junction of described concentrated cup and described heating jacket is provided with temperature sensor, the upper end of described concentrated cup is provided with extract import, nitrogen inlet, exhausr port and the cleaning needle that communicates with its inside, the lower end of described concentrated cup is provided with concentrated solution outlet joint and liquid level detection device, and described liquid level detection device is positioned at above described concentrated solution outlet joint.
Concentrated cup assembly for the food samples pre-treatment of the present utility model, described heating jacket is fixed on described support by a U cutting ferrule, and described support upper end is fixed with safe back-up ring, and described safety catch snare is in the upper end of described concentrated cup.
Concentrated cup assembly for the food samples pre-treatment of the present utility model, described safe back-up ring is provided with sealing socket, described sealed socket sleeve is in the upper end of described concentrated cup, the upper end open place of described concentrated cup is plugged with the cup plug, described cup is provided with described extract import, described nitrogen inlet, described exhausr port and described cleaning needle beyond the Great Wall, described cup is covered with beyond the Great Wall and screws lid, and the described lid that screws is threaded with described sealing socket.
Concentrated cup assembly for the food samples pre-treatment of the present utility model, the lower end of described cleaning needle is hook-shaped, and its needle point opening vertically upward, the lower end of described cup plug be conical and its cone point the needle point aperture position with described cleaning needle is corresponding vertically downward.
Concentrated cup assembly for the food samples pre-treatment of the present utility model, the upper end-face edge of described concentrated cup is being provided with O-ring seal with described cup plug junction.
Concentrated cup assembly for the food samples pre-treatment of the present utility model, the upper end-face edge of described concentrated cup is being provided with buffering spacer with described sealing socket junction.
Concentrated cup assembly for the food samples pre-treatment of the present utility model, described concentrated cup is transparent material, described liquid level detection device is Optical Liquid Level Sensors, and the second support is installed on described support, and described Optical Liquid Level Sensors is installed on the end of described the second support.
Concentrated cup assembly for the food samples pre-treatment of the present utility model, described heating jacket is the control-temperature electric heating cover, described control-temperature electric heating cover is kept 70 ° of C heating-up temperatures by the temperature data of described temperature sensor feedback.
concentrated cup assembly for the food samples pre-treatment of the present utility model in use, its extract import is connected with the outlet of PLE extract, its concentrated solution outlet joint is connected with the import of SPE concentrate, the extract that flows out from PLE is after concentrated cup assembly nitrogen blowing heating concentrates, and injection SPE purifies under nitrogen blowing, thereby realized the direct coupling of SPE and PLE, and inject SPE under nitrogen blowing after, utilize the cleaning needle of external infusion pump to clean concentrated cup assembly, so that next time concentrated, thereby realized the extraction of food samples, the purification on-line continuous is processed.In addition, but of the present utility model for the food samples pre-treatment concentrated cup assembly also expanded application in robotization sample pre-treatments such as environmental sample such as soil, bed mud, water sample, solid waste.
Description of drawings
Fig. 1 is that the master of the concentrated cup assembly for the food samples pre-treatment of the present utility model looks cut-open view.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in detail:
With reference to shown in Figure 1, the concentrated cup assembly that is used for the food samples pre-treatment of the present embodiment comprises vertical fixed support 1, and the concentrated cup 2 of transparent material is installed on vertical fixed support 1, and concentrated cup 2 overcoats have control-temperature electric heating cover 3.Concrete, the middle and lower part of control-temperature electric heating cover 3 is fixed on support 1 by a U cutting ferrule 11, support 1 upper end is fixed with safe back-up ring 11, safe back-up ring 11 is enclosed within the upper end of concentrated cup 2, concentrated cup 2 is provided with temperature sensor 4 with the junction of control-temperature electric heating cover 3, and control-temperature electric heating cover 3 is kept certain heating-up temperature by the temperature data of temperature sensor 4 feedbacks.Safe back-up ring 11 is provided with sealing socket 12, sealing socket 12 is enclosed within the upper end of concentrated cup 2, the upper end open place of concentrated cup 2 is plugged with cup plug 13, cup plug 13 is provided with extract import 5, nitrogen inlet 6, exhausr port 7 and the cleaning needle 8 that communicates with concentrated cup 2 inside, cup plug 13 is outer to be covered with to screw and cover 14, screws cover 14 downward compression cup plugs 13 and be threaded with sealing socket 12.The lower end of cleaning needle 8 is hook-shaped, and its needle point opening vertically upward, the lower end of cup plug 13 be conical and its cone point the needle point aperture position with cleaning needle 8 is corresponding vertically downward, like this, after being injected in the conical lower end of cup plug 13 from the cleaning fluid of the needle point opening of cleaning needle 8 ejection, can disperse the inwall surrounding that flows to concentrated cup 2 along the surperficial surrounding of the conical lower end of cup plug 13, and flow down along the inwall surrounding of concentrated cup 2, thereby can play better cleaning performance.The upper end-face edge of concentrated cup 2 plays sealing and buffer action being provided with O-ring seal 15 with cup plug 13 junctions.And the upper end-face edge of concentrated cup 2 is being provided with buffering spacer 16 with sealing socket 12 junctions, cover 14 and compresses cup plugs 13 downwards cause concentrating the upper end-face edge of cup 2 with sealing socket 12 screwing hermetics crushed to prevent from screwing.The lower end of concentrated cup 2 is provided with concentrated solution outlet joint 9 and is Optical Liquid Level Sensors 10, for Optical Liquid Level Sensors 10 is positioned at concentrated solution outlet joint 9 tops.Vertical fixed support 1 top and the bottom are equipped with the second support 17, and Optical Liquid Level Sensors 10 is installed on the end of the second support 17.
in use, the switch valve acquiescence that concentrated solution outlet joint 9 connects is in closed condition, after when transfer to concentrated cup 2 fully by extract import 5 from the extract of PLE in, the switch valve that connects exhausr port 7 is opened simultaneously with the switch valve that is connected nitrogen inlet 6, and the control-temperature electric heating cover 3 of concentrated cup 2 peripheries can allow concentrated cup 2 keep at a certain temperature (being generally 70 ° of C left and right, why to be made as about 70 ° of C, impact to concentrate speed because temperature is too small, and temperature is when excessive, can so concentrated speed can accelerate, but also there is high temperature may destroy simultaneously organic principle in the organic food sample), can further accelerate concentrated speed and can not destroy organic principle in the organic food sample and utilize nitrogen (or other inert gases) to purge concentrated extract, the Optical Liquid Level Sensors 10 at the thin neck place, lower end of concentrated cup 2 can detect the extract liquid level, to prevent that extract is by complete evaporate to dryness, cause the loss of target compound.After work to be concentrated is completed, the switch valve of concentrated solution outlet joint 9 is opened, the switch valve of exhausr port 7 cuts out, utilize the pressure of nitrogen that concentrate is purged on follow-up SPE post, then the infusion pump delivery solvent that connects cleaning needle 8 is cleaned concentrated cup 2 and utilizes the pressure that nitrogen blows that cleaning fluid is purged on the SPE post, infusion pump pumps into solvent wash-out SPE post under nitrogen pressure afterwards, flows out scavenging solution, has so far completed the purification work of concentrate.
When practical application, for improving thickening efficiency, concentrated cup assembly can adopt the two-way Parallel Design, and two-way is controlled to switch and controlled by two-position three-way valve.At work, by being used alternatingly of two the concentrated streams in left and right, can realize the continuous concentration of a plurality of sample extraction liquid.lift an example, when the operator utilizes the 1st sample of PLE extraction, the concentrated cup assembly of two-way all is in vacant state, when the 1st sample extraction completed, extract is transferred to the concentrated work of beginning extract after the concentrated cup assembly in the left side, at the same time, PLE begins the extraction work of the 2nd sample, switching by two-bit triplet makes the concentrated cup assembly in the right be communicated with PLE, prepare to receive the extract of the 2nd sample, after the 2nd sample extraction completed, the extract of the 2nd sample that the concentrated cup assembly in the right is collected also begins to heat nitrogen and blows concentrated, at this moment the concentrated cup assembly in the left side the 2nd sample extraction during this period of time in completed the concentrated of the 1st sample, automatically discharge the concentrate of the 1st sample and complete cleaning before the extract that receives the 3rd sample, concentrate and cleaning fluid arrive follow-up SPE post and complete purification run by its concentrated solution outlet joint respectively, and then when completing the extraction work of the 3rd sample, complete the concentrated of the 2nd sample extraction liquid and purify, so repeatedly, can better realize extraction and concentrated, parallel the continuing that purifies processed, saved working time of nearly sixty percent.
Above embodiment is described preferred implementation of the present utility model; be not that scope of the present utility model is limited; under the prerequisite that does not break away from the utility model design spirit; various distortion and improvement that the common engineering technical personnel in this area make the technical solution of the utility model all should fall in the definite protection domain of claims of the present utility model.
Claims (8)
1. concentrated cup assembly that is used for the food samples pre-treatment, it is characterized in that, comprise support (1), concentrated cup (2) is installed on described support (1), described concentrated cup (2) overcoat has heating jacket, described concentrated cup (2) is provided with temperature sensor (4) with the junction of described heating jacket, the upper end of described concentrated cup (2) is provided with the extract import (5) that communicates with its inside, nitrogen inlet (6), exhausr port (7) and cleaning needle (8), the lower end of described concentrated cup (2) is provided with concentrated solution outlet joint (9) and liquid level detection device, described liquid level detection device is positioned at above described concentrated solution outlet joint (9).
2. the concentrated cup assembly for the food samples pre-treatment according to claim 1, it is characterized in that, described heating jacket is fixed on described support (1) by a U cutting ferrule (18), described support (1) upper end is fixed with safe back-up ring (11), and described safe back-up ring (11) is enclosed within the upper end of described concentrated cup (2).
3. the concentrated cup assembly for the food samples pre-treatment according to claim 2, it is characterized in that, described safe back-up ring (11) is provided with sealing socket (12), described sealing socket (12) is enclosed within the upper end of described concentrated cup (2), the upper end open place of described concentrated cup (2) is plugged with cup plug (13), described cup plug (13) is provided with described extract import (5), described nitrogen inlet (6), described exhausr port (7) and described cleaning needle (8), outer being covered with of described cup plug (13) screws lid (14), the described lid (14) that screws is threaded with described sealing socket (12).
4. the concentrated cup assembly for the food samples pre-treatment according to claim 3, it is characterized in that, the lower end of described cleaning needle (8) is hook-shaped, and its needle point opening is vertically upward, the lower end of described cup plug (13) be conical and its cone point the needle point aperture position with described cleaning needle (8) is corresponding vertically downward.
5. the concentrated cup assembly for the food samples pre-treatment according to claim 4, is characterized in that, the upper end-face edge of described concentrated cup (2) is being provided with O-ring seal (15) with described cup plug (13) junction.
6. the concentrated cup assembly for the food samples pre-treatment according to claim 5, is characterized in that, the upper end-face edge of described concentrated cup (2) is being provided with buffering spacer (16) with described sealing socket (12) junction.
7. the concentrated cup assembly for the food samples pre-treatment according to claim 6, it is characterized in that, described concentrated cup (2) is transparent material, described liquid level detection device is Optical Liquid Level Sensors (10), the second support (17) is installed on described support (1), and described Optical Liquid Level Sensors (10) is installed on the end of described the second support (17).
8. the concentrated cup assembly for the food samples pre-treatment according to claim 7, it is characterized in that, described heating jacket is control-temperature electric heating cover (3), and described control-temperature electric heating cover (3) is kept 70 ° of C heating-up temperatures by the temperature data of described temperature sensor (4) feedback.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220474013 CN202974733U (en) | 2012-09-17 | 2012-09-17 | Concentrating cup assembly for pretreatment of food samples |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220474013 CN202974733U (en) | 2012-09-17 | 2012-09-17 | Concentrating cup assembly for pretreatment of food samples |
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| CN202974733U true CN202974733U (en) | 2013-06-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201220474013 Expired - Fee Related CN202974733U (en) | 2012-09-17 | 2012-09-17 | Concentrating cup assembly for pretreatment of food samples |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104913967A (en) * | 2015-06-05 | 2015-09-16 | 北京普立泰科仪器有限公司 | Concentration device capable of calibrating automatically online and concentration method |
| CN105758976A (en) * | 2014-12-16 | 2016-07-13 | 中国科学院大连化学物理研究所 | On-line sample concentrating device and use method thereof |
| CN109307543A (en) * | 2018-10-12 | 2019-02-05 | 山东省农业科学院农业质量标准与检测技术研究所 | A kind of anti-liquid-detecting that drains off for solid-phase extracting instrument |
-
2012
- 2012-09-17 CN CN 201220474013 patent/CN202974733U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105758976A (en) * | 2014-12-16 | 2016-07-13 | 中国科学院大连化学物理研究所 | On-line sample concentrating device and use method thereof |
| CN104913967A (en) * | 2015-06-05 | 2015-09-16 | 北京普立泰科仪器有限公司 | Concentration device capable of calibrating automatically online and concentration method |
| CN104913967B (en) * | 2015-06-05 | 2017-07-21 | 北京普立泰科仪器有限公司 | The enrichment facility and method of a kind of on-line automatic calibration |
| CN109307543A (en) * | 2018-10-12 | 2019-02-05 | 山东省农业科学院农业质量标准与检测技术研究所 | A kind of anti-liquid-detecting that drains off for solid-phase extracting instrument |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130605 Termination date: 20150917 |
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| EXPY | Termination of patent right or utility model |