CN211553884U

CN211553884U - Pretreatment solid-phase extraction device for chromatographic detection

Info

Publication number: CN211553884U
Application number: CN201922381576.8U
Authority: CN
Inventors: 张钗
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-12-26
Filing date: 2019-12-26
Publication date: 2020-09-22
Anticipated expiration: 2029-12-26

Abstract

The utility model discloses a processing solid phase extraction device before chromatography detects, including extraction device, magnetic stirrers, first examination tube board, second examination tube board, magnetism, temperature detect heater, barometer, control switch, first control valve and second control valve, extraction jar inboard is equipped with the temperature detect heater, the extraction jar outside is equipped with first control valve, extraction tank bottoms end is equipped with magnetic stirrers, second control valve lower extreme is connected with the straw, second control valve inboard is equipped with the loose loop. The utility model discloses carrying out magnetic force vibrations at reagent that extraction process kind accessible magnetic stirrers made in vitro, the test tube is in inclosed extraction jar, needs to prevent to stir the test tube stirring in, prevents to stir inadequately, leads to the condition such as extraction rate end, is equipped with sealed lid on the extraction jar. Guarantee its leakproofness, the rethread gas outlet is with extracting to relative vacuum in the jar, extracts reagent through the cylinder, has very strong practicality.

Description

Pretreatment solid-phase extraction device for chromatographic detection

Technical Field

The utility model relates to an extraction technical field particularly, relates to a chromatogram detects pretreatment solid phase extraction device.

Background

The online Solid Phase Extraction (SPE) technology appears in liquid chromatography first, and develops rapidly in recent years, especially in the separation and analysis of completely exposed corners in complex samples, the online solid phase extraction technology and the combined technology are combined to make the use of the technology wider, and the technology is a promising application technology, and for the analysis of volatile or semi-volatile trace/trace organic components, the Solid Phase Micro Extraction (SPME) technology and the gas chromatography/mass spectrometry (GC/MS) analysis technology are currently the most attractive sample pretreatment technology and analysis tool. Solid phase microextraction is a novel sample pretreatment technique developed and proposed by Pawliszyn et al in 1989 that is fast, sensitive, and conveniently applicable to gas and liquid samples. The technology is a new extraction separation technology developed on the basis of Solid Phase Extraction (SPE). It overcomes almost all of the disadvantages of conventional sample processing methods. The method has the advantages of no need of organic solvent, simplicity, convenience, quick test and low cost, integrates sample extraction, concentration and sample introduction, but the solid phase microextraction still has certain defects to be further developed and perfected, such as poor reliability, inaccurate quantification, and the enrichment multiple and selectivity of extraction still need to be further improved. The solid phase micro-extraction method used at present has the advantages of integration of extraction, purification and concentration, but always does not meet the requirement of complete enrichment, and the method always gives very low extraction rate for semi-volatile substances.

An effective solution to the problems in the related art has not been proposed yet.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a processing solid phase extraction device before chromatography detects to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a solid phase extraction device for pretreatment of chromatographic detection comprises an extraction tank, a magnetic stirrer, a first test tube plate, a second test tube plate, a magneton, a temperature control heater, a barometer, a control switch, a first control valve and a second control valve, wherein the temperature control heater is arranged on the inner side of the extraction tank, the first control valve is arranged on the outer side of the extraction tank, the magnetic stirrer is arranged at the bottom end of the extraction tank, the first test tube plate is arranged at the upper end of the magnetic stirrer, the second test tube plate is arranged at the upper end of the first test tube plate, a test tube is arranged between the first test tube plate and the second test tube plate, the magneton is arranged at the bottom end of the test tube, a sealing cover is arranged at the upper end of the test tube, the control switch is arranged at the front side of the sealing cover, a sealing ring is arranged between the sealing cover and the extraction tank, the barometer is arranged at the upper end, the upper end of the second control valve is provided with a needle cylinder, the lower end of the second control valve is connected with a suction pipe, and the inner side of the second control valve is provided with a movable ring.

Further, the inner side of the extraction tank is provided with a heat-insulating layer, and the thickness of the heat-insulating layer is 0.25 mm.

Furthermore, the upper end of the extraction tank is provided with a threaded hole, and the sealing cover is in threaded connection with the extraction tank through the threaded hole.

Furthermore, the first test tube plate and the second test tube plate are both fixedly connected to the inner side of the extraction tank.

Furthermore, a support column is arranged between the first test tube plate and the second test tube plate, and the support column is fixedly connected to the first test tube plate and the second test tube plate.

Furthermore, the first test tube plate and the second test tube plate are both provided with small holes, and the outer side of the extraction tank is provided with an air outlet pipe.

Furthermore, the upper end of the second control valve is provided with a connector, one side of the second control valve is provided with a movable rod, and the movable rod is fixedly connected with the movable ring.

Compared with the prior art, the utility model discloses following beneficial effect has:

(1) the utility model relates to a processing solid phase extraction device before chromatogram detects, traditional solid phase extraction device relies on the nature poor, the ration is inaccurate, the enrichment multiple and the selectivity of extraction are relatively poor, do not satisfy the requirement of complete enrichment all the time, and this method always gives very low extraction rate to semi-volatile material, this device makes the reagent in the test tube carry out magnetic shock at extraction process kind accessible magnetic stirrers, the test tube is in inclosed extraction jar, need be to the test tube stirring, prevent to stir inadequately, lead to the condition such as extraction rate at the bottom, be equipped with sealed lid on the extraction jar. Guarantee its leakproofness, the rethread gas outlet is with extracting to relative vacuum in the jar, extracts reagent through the cylinder, has very strong practicality.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic structural diagram of a solid phase extraction device before chromatography detection according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of the interior of a solid phase extraction device before chromatography detection according to an embodiment of the present invention;

fig. 3 is an enlarged schematic structural diagram at a in the embodiment of the present invention.

Reference numerals:

1. an extraction tank; 2. a magnetic stirrer; 3. a first test tube plate; 4. a test tube; 5. a support pillar; 6. a second test tube plate; 7. a magneton; 8. a small hole; 9. a straw; 10. a temperature controlled heater; 11. a sealing cover; 12. a barometer; 13. a seal ring; 14. a control switch; 15. a threaded hole; 16. a heat-insulating layer; 17. a first control valve; 18. an air outlet pipe; 19. an interface; 20. a needle cylinder; 21. a second control valve; 22. a movable ring; 23. a movable rod.

Detailed Description

The following, with reference to the drawings and the detailed description, further description of the present invention is made:

referring to fig. 1-3, a solid phase extraction device for pretreatment before chromatography according to an embodiment of the present invention includes an extraction tank 1, a magnetic stirrer 2, a first test tube plate 3, a second test tube plate 6, a magneton 7, a temperature-controlled heater 10, a barometer 12, a control switch 14, a first control valve 17 and a second control valve 21, the temperature-controlled heater 10 is disposed inside the extraction tank 1, the temperature-controlled heater 10 mainly functions to heat a reagent in a proper amount, so as to accelerate extraction efficiency, the first control valve 17 is disposed outside the extraction tank 1, the magnetic stirrer 2 is disposed at the bottom end of the extraction tank 1, the first test tube plate 3 is disposed at the upper end of the magnetic stirrer 2, the second test tube plate 6 is disposed at the upper end of the first test tube plate 3, a test tube 4 is disposed between the first test tube plate 3 and the second test tube plate 6, the magneton 7 is disposed at the bottom end of the test tube 4, the upper end of the test tube 4 is provided with a sealing cover 11, the front side of the sealing cover 11 is provided with the control switch 14, a sealing ring 13 is arranged between the sealing cover 11 and the extraction tank 1, the upper end of the sealing cover 11 is provided with the barometer 12, one side of the barometer 12 is provided with the second control valve 21, the upper end of the second control valve 21 is provided with a needle cylinder 20, the lower end of the second control valve 21 is connected with a suction tube 9, and the inner side of the second control valve 21 is provided with a movable ring 22.

Through the above technical scheme of the utility model, the inboard heat preservation 16 that is equipped with of extraction jar 1, the thickness of heat preservation 16 is 0.25mm, and the effect of heat preservation 16 is to prevent that inside temperature from running off fast, extraction jar 1 upper end is equipped with screw hole 15, sealed lid 11 is through screw hole 15 and extraction jar 1 threaded connection, first test tube board 3 and second test tube board 6 all fixed connection are in extraction jar 1 inboard, be equipped with support column 5 between first test tube board 3 and the second test tube board 6, the main effect of support column 5 is to support first test tube board 3 and second test tube board 6, support column 5 fixed connection is on first test tube board 3 and second test tube board 6, first test tube board 3 and second test tube board 6 all are equipped with aperture 8, the extraction jar 1 outside is equipped with outlet duct 18, second control valve 21 upper end is equipped with interface 19, second control valve 21 one side is equipped with movable rod 23, the movable rod 23 is fixedly connected with the movable ring 22.

When specifically using, the utility model relates to a chromatogram detects preceding processing solid phase extraction device, traditional solid phase extraction device leans on the nature poor, the ration is inaccurate, the enrichment multiple and the selectivity of extraction are relatively poor, do not satisfy the requirement of complete enrichment all the time, and this method always gives very low extraction rate to semi-volatile material, this device carries out magnetic shock at the reagent that extracts process kind accessible magnetic stirrers 2 messenger test tube 4 in, test tube 4 is in inclosed extraction jar 1, need be to test tube 4 stirring, prevent to stir inadequately, lead to the condition such as extraction rate end, be equipped with sealed lid 11 on the extraction jar 1. The tightness of the device is ensured, the tank is pumped to relative vacuum through the air outlet 18, and the reagent is extracted through the needle cylinder 20, so that the device has strong practicability.

In the description of the present invention, it should be noted that the terms "top", "bottom", "one side", "the other side", "front", "back", "middle part", "inside", "top", "bottom", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of description and simplification of the description, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The solid-phase extraction device for the pretreatment of chromatographic detection is characterized by comprising an extraction tank (1), a magnetic stirrer (2), a first test tube plate (3), a second test tube plate (6), a magneton (7), a temperature control heater (10), an air pressure meter (12), a control switch (14), a first control valve (17) and a second control valve (21), wherein the temperature control heater (10) is arranged on the inner side of the extraction tank (1), the first control valve (17) is arranged on the outer side of the extraction tank (1), the magnetic stirrer (2) is arranged at the bottom end of the extraction tank (1), the first test tube plate (3) is arranged at the upper end of the magnetic stirrer (2), the second test tube plate (6) is arranged at the upper end of the first test tube plate (3), a test tube (4) is arranged between the first test tube plate (3) and the second test tube plate (6), the magneton (7) is arranged at the bottom end of the test tube (4), test tube (4) upper end is equipped with sealed lid (11), sealed lid (11) front side is equipped with control switch (14), be equipped with sealing washer (13) between sealed lid (11) and extraction jar (1), sealed lid (11) upper end is equipped with barometer (12), barometer (12) one side is equipped with second control valve (21), second control valve (21) upper end is equipped with cylinder (20), second control valve (21) lower extreme is connected with straw (9), second control valve (21) inboard is equipped with movable ring (22).

2. The pretreatment solid-phase extraction device according to claim 1, wherein an insulating layer (16) is disposed inside the extraction tank (1), and the thickness of the insulating layer (16) is 0.25 mm.

3. The pretreatment solid-phase extraction device for chromatographic detection according to claim 1, wherein a threaded hole (15) is formed in the upper end of the extraction tank (1), and the sealing cover (11) is in threaded connection with the extraction tank (1) through the threaded hole (15).

4. The pretreatment solid-phase extraction device according to claim 1, wherein the first test tube plate (3) and the second test tube plate (6) are both fixedly connected to the inner side of the extraction tank (1).

5. The pretreatment solid-phase extraction device according to claim 1, wherein a support column (5) is disposed between the first test tube plate (3) and the second test tube plate (6), and the support column (5) is fixedly connected to the first test tube plate (3) and the second test tube plate (6).

6. The pretreatment solid-phase extraction device for chromatographic detection according to claim 1, wherein the first test tube plate (3) and the second test tube plate (6) are both provided with small holes (8), and an air outlet pipe (18) is arranged outside the extraction tank (1).

7. The pretreatment solid-phase extraction device according to claim 1, wherein an interface (19) is provided at an upper end of the second control valve (21), a movable rod (23) is provided at one side of the second control valve (21), and the movable rod (23) is fixedly connected with a movable ring (22).