CN105424459A - Adsorption element and solid phase micro-extraction device - Google Patents
Adsorption element and solid phase micro-extraction device Download PDFInfo
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- CN105424459A CN105424459A CN201511027177.1A CN201511027177A CN105424459A CN 105424459 A CN105424459 A CN 105424459A CN 201511027177 A CN201511027177 A CN 201511027177A CN 105424459 A CN105424459 A CN 105424459A
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- absorptive element
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/40—Concentrating samples
- G01N1/405—Concentrating samples by adsorption or absorption
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Abstract
The invention discloses an adsorption element and a solid phase micro-extraction device. The solid phase micro-extraction device comprises the adsorption element for adsorbing organic matter in a water sample in a sample container. The adsorption element comprises a core rod making contact with the water sample, and extraction matter is arranged on the outer side wall of the core rod through the coating process. According to the adsorption element and the solid phase micro-extraction device, the extraction matter is arranged on the outer side wall of the core rod through the coating process, extraction working efficiency is improved, and the problem that extraction seeds easily fall, so that the extraction effect is affected is avoided.
Description
Technical field
The present invention relates to sample detection pretreatment technology field, particularly relate to a kind of absorptive element and solid-phase micro-extracting device.
Background technology
SPME is a kind of micro-extraction isolation technics grown up in solid phase extraction techniques, is that a kind of centralized procurement sample, extraction, concentrated and sample introduction are in the solvent-free sample micro-extraction new technology of one.Compared with solid phase extraction techniques, solid-phase microextraction operation is simpler, and carry more convenient, operation cost is also cheaper; Overcome that the Solid-Phase Extraction recovery is low, the susceptible to plugging shortcoming in adsorbent duct in addition.Therefore one of method be most widely used in currently used Sample Pretreatment Technique is become.Can with the technology couplings such as gas chromatography, high performance liquid chromatography and mass spectrum.
Current solid phase micro-extraction technique is mainly used in test in laboratory, needs manually to participate in, and automaticity is not high.Along with the progress of technology, solid phase micro-extraction technique also starts in the organic automatic monitoring of water quality, in application process, water sample is injected into solid-phase microextraction unit, absorptive element in the adsorbent equipment of solid-phase microextraction adsorbs the organism in water sample, then emptying water sample, heats adsorbent equipment, thus is parsed by the organism to be measured be adsorbed on absorptive element.
In prior art, extraction seed is arranged on the plug of adsorbent equipment, easily comes off, affects effect of extracting.
Therefore, designing a kind of absorptive element and the solid-phase micro-extracting device that improve effect of extracting, is those skilled in the art's problem demanding prompt solutions.
Summary of the invention
The invention provides a kind of absorptive element and solid-phase micro-extracting device, solve in prior art, extraction seed easily comes off, and affects the problem of effect of extracting.
Technical scheme provided by the invention is as follows:
A kind of absorptive element, for the organism in water sample in adsorption sample container, it is characterized in that, described absorptive element comprises the plug contacted with described water sample, and extracting substance is arranged on the lateral wall of described plug by coating process.
A kind of solid-phase micro-extracting device, comprises for absorptive element organic in water sample in adsorption sample container, also comprises:
Be connected with described absorptive element, for holding the chamber of dried described absorptive element;
Be arranged on described chamber lateral wall, the chamber heating arrangement that the organism for adsorbing described absorptive element discharges;
Be connected with described chamber, for the described organism discharged after heating being delivered to the delivery port of checkout equipment;
Described absorptive element comprises the plug contacted with described water sample, and extracting substance is arranged on the lateral wall of described plug by coating process.
Preferably, described absorptive element is connected with telecontrol equipment, described telecontrol equipment for realize described absorptive element in described sampling receptacle and in described chamber between move up and down.
Preferably, the accent place entered for described absorptive element of described chamber is provided with the first gas check, and the connector place of described chamber and described delivery port is provided with the second gas check.
Preferably, described sampling receptacle outer wall is provided with container heating arrangement.
Preferably, the stirring apparatus for making described water sample move is provided with in described sampling receptacle.
Preferably, described delivery port outer wall cover is provided with the delivery port heating arrangement be positioned at above described second gas check.
Preferably, described cavity bottom is communicated with the first carrier gas pipe, and described first carrier gas pipe is used for carrying blanket gas in described chamber.
Preferably, be also provided with the second carrier gas pipe be communicated with described delivery port above described delivery port heating arrangement, described second carrier gas pipe is used for carrying blanket gas in described chamber.
Preferably, also comprise adsorbed for drying after be moved to the drying part of the described absorptive element outside described water sample.
Absorptive element provided by the present invention and solid-phase micro-extracting device, compared with prior art, be arranged on the lateral wall of plug by extracting substance by coating process, avoids extraction seed and easily come off, affect the problem of effect of extracting.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, the accompanying drawing that the following describes is only some embodiments recorded in the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
The structural representation of the absorptive element that Fig. 1 provides for the embodiment of the present invention one and solid-phase micro-extracting device.
Embodiment
Technical scheme in the present invention is understood better in order to make those skilled in the art person, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, should belong to the scope of protection of the invention.
Embodiment
The embodiment of the invention discloses a kind of absorptive element, for the organism in water sample in adsorption sample container 1, it is characterized in that, absorptive element 2 comprises the plug 21 contacted with water sample, and extracting substance is arranged on the lateral wall of plug 21 by coating process.
Because extracting substance adopts coating process to be arranged on the lateral wall of plug 21, improve work efficiency, avoid extraction seed and easily come off, affect the problem of effect of extracting.
The embodiment of the invention also discloses a kind of solid-phase micro-extracting device, comprise for absorptive element 2 organic in water sample in adsorption sample container 1, it is characterized in that, also comprise:
Be connected with absorptive element 2, for holding the chamber 3 of dried absorptive element 2;
Be arranged on chamber 3 lateral wall, the chamber heating arrangement 31 that the organism for adsorbing absorptive element 2 discharges;
Be connected with chamber 3, for the organism discharged after heating being delivered to the delivery port 4 of checkout equipment;
Absorptive element 2 comprises the plug 21 contacted with water sample, and extracting substance is arranged on the lateral wall of plug 21 by coating process.
Adopt above-mentioned set-up mode, after absorptive element 2 adsorbs in sampling receptacle 1, absorptive element 2 to be moved in sampling receptacle outside 2, outside the water sample of namely sampling receptacle 1, and drying is carried out to the moisture of absorptive element 2, dried absorptive element 2 enters chamber 3, and the VOCs emission under the effect of the chamber heating arrangement 31 of chamber 3, absorptive element 2 adsorbed, the organism of release is transported to subsequent detection device by delivery port 4.Because extracting substance adopts coating process to be arranged on the lateral wall of plug 21, improve extraction work efficiency, avoid extraction seed and easily come off, affect the problem of effect of extracting.
Preferably, absorptive element 2 is connected with telecontrol equipment 5, telecontrol equipment 5 for realize absorptive element 2 in sampling receptacle 1 and in chamber 3 between move up and down.Adopt telecontrol equipment 5 to drive absorptive element 2 to realize adding Thermal release in absorption organism, feeding chamber 3, returning repeatedly moving up and down of sampling receptacle 1 these three steps interior, improve the robotization effect of device.
Preferably, accent 33 place entered for absorptive element 2 of chamber 3 is provided with the first gas check 36, and chamber 3 is provided with the second gas check 32 with connector 34 place of delivery port 4, prevents the organism discharged in chamber 3 from revealing.
Preferably, sampling receptacle 1 outer wall is provided with container heating arrangement 11, more effectively can complete the extraction work of absorptive element 2, makes extraction more fully effectively.
Preferably, in sampling receptacle 1, being provided with the stirring apparatus 12 for making water sample move, more effectively can completing the extraction work of absorptive element 2, make extraction more fully effectively.
Preferably, delivery port 4 outer wall cover is provided with the delivery port heating arrangement 41 be positioned at above the second gas check 32, reduce further organism after entering continuous pick-up unit time with the possibility of steam.
Preferably; the first carrier gas pipe 35 is communicated with bottom chamber 3; first carrier gas pipe 35 for carrying blanket gas in chamber 3, and the blanket gas herein carried adopts nitrogen or other inert gas, for better organism being blowed to follow-up checkout equipment by delivery port 4.
Preferably; the the second carrier gas pipe 42 be communicated with delivery port 4 is also provided with above delivery port heating arrangement 41; second carrier gas pipe 42 for carrying blanket gas in chamber 3; the blanket gas herein carried adopts nitrogen or other inert gas; after extraction, in conveying blanket gas to chamber 2, remove residuals.
Preferably, also comprise the drying part 6 being moved to the absorptive element 2 outside water sample after having adsorbed for drying, after realizing drawing organism to absorptive element 2 in sampling receptacle 1, in cavity 3 in moving process, to the further drying of moisture.
Absorptive element provided by the present invention and solid-phase micro-extracting device, compared with prior art, be arranged on the lateral wall of plug by extracting substance by coating process, improve extraction work efficiency, avoids extraction seed and easily come off, affect the problem of effect of extracting.Preferably, by arrange telecontrol equipment realize absorptive element in sampling receptacle and in chamber between move up and down, improve robotization; Arranging gas check prevents organism from revealing; Heating arrangement and stirring apparatus are arranged to sample container, makes extraction more abundant; Arrange gas piping blow organism and remove residuals; It is dry further to absorptive element that drying part is set.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the present invention.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein can without departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (10)
1. an absorptive element, for the organism in adsorption sample container (1) interior water sample, it is characterized in that, described absorptive element (2) comprises the plug (21) contacted with described water sample, and extracting substance is arranged on the lateral wall of described plug (21) by coating process.
2. a solid-phase micro-extracting device, comprises for organic absorptive element (2) in adsorption sample container (1) interior water sample, it is characterized in that, also comprise:
Be connected with described absorptive element (2), for holding the chamber (3) of dried described absorptive element (2);
Be arranged on described chamber (3) lateral wall, the chamber heating arrangement (31) that the organism for adsorbing described absorptive element (2) discharges;
Be connected with described chamber (3), for the described organism discharged after heating being delivered to the delivery port (4) of checkout equipment;
Described absorptive element (2) comprises the plug (21) contacted with described water sample, and extracting substance is arranged on the lateral wall of described plug (21) by coating process.
3. solid-phase micro-extracting device as claimed in claim 2, it is characterized in that, described absorptive element (2) is connected with telecontrol equipment (5), described telecontrol equipment (5) for realize described absorptive element (2) in described sampling receptacle (1) and in described chamber (3) between move up and down.
4. solid-phase micro-extracting device as claimed in claim 3, it is characterized in that, accent (33) place entered for described absorptive element (2) of described chamber (3) is provided with the first gas check (36), and described chamber (3) is provided with the second gas check (32) with connector (34) place of described delivery port (4).
5. solid-phase micro-extracting device as claimed in claim 2, it is characterized in that, described sampling receptacle (1) outer wall is provided with container heating arrangement (11).
6. solid-phase micro-extracting device as claimed in claim 2, is characterized in that, being provided with the stirring apparatus (12) for making described water sample move in described sampling receptacle (1).
7. solid-phase micro-extracting device as claimed in claim 4, is characterized in that, described delivery port (4) outer wall cover is provided with the delivery port heating arrangement (41) being positioned at described second gas check (32) top.
8. solid-phase micro-extracting device as claimed in claim 4; it is characterized in that; described chamber (3) bottom is communicated with the first carrier gas pipe (35), and described first carrier gas pipe (35) is for conveying blanket gas in described chamber (3).
9. solid-phase micro-extracting device as claimed in claim 7; it is characterized in that; described delivery port heating arrangement (41) top is also provided with the second carrier gas pipe (42) be communicated with described delivery port (4), and described second carrier gas pipe (42) is for conveying blanket gas in described chamber (3).
10. solid-phase micro-extracting device as claimed in claim 2, is characterized in that, also comprise the drying part (6) being moved to the described absorptive element (2) outside described water sample after having adsorbed for drying.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511027177.1A CN105424459B (en) | 2015-12-31 | 2015-12-31 | A kind of absorptive element and solid-phase micro-extracting device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201511027177.1A CN105424459B (en) | 2015-12-31 | 2015-12-31 | A kind of absorptive element and solid-phase micro-extracting device |
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| CN105424459A true CN105424459A (en) | 2016-03-23 |
| CN105424459B CN105424459B (en) | 2019-07-09 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109342614A (en) * | 2018-09-30 | 2019-02-15 | 力合科技（湖南）股份有限公司 | Water sample processing system |
| CN109342615A (en) * | 2018-09-30 | 2019-02-15 | 力合科技（湖南）股份有限公司 | Analytical mechanism and water sample processing system |
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| CN105424459B (en) | 2019-07-09 |
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