Solid-phase microextraction device and method for white spirit flavor substances

Abstract

The invention discloses a white spirit flavor substance solid-phase micro-extraction device and method, and relates to the technical field of micro-extraction devices.A heat insulation partition plate is fixedly arranged on the inner wall of a tank body, an extraction subarea is arranged on the left side of the heat insulation partition plate in the tank body, and a desorption subarea is arranged on the right side of the heat insulation partition plate in the tank body; the heating unit is fixedly arranged on the lower inner wall of the tank body, a guide groove is formed in the cover plate, the mounting sleeve is movably arranged in the guide groove in a penetrating mode, a mounting groove is formed in the heat insulation partition plate, the two sealing plates are arranged on the upper side and the lower side of the cover plate respectively, and the mounting sleeve is fixedly arranged on the sealing plates on the upper side and the lower side in a penetrating mode; according to various extraction and enrichment modes in the micro-extraction technology, integrated structural equipment is designed, two mutually independent partitions are arranged in the equipment, so that extraction and desorption operation can be realized, and furthermore, a lifting adjusting structure and a heating structure are arranged in the equipment, so that micro-extraction operation in different modes can be selected.

Description

Technical Field

[0001] The invention relates to the technical field of microextraction devices, and in particular to a solid phase microextraction device and method for liquor flavor substances. Background Art

[0002] Solid phase microextraction overcomes the defects of traditional sample pretreatment technology, integrating sampling, extraction, concentration and injection. Its significant technical advantages are attracting widespread attention from analysts in the environment, food and pharmaceutical industries, and are being vigorously promoted and applied. Solid phase microextraction technology is based on the use of a substrate coated with a stationary phase to adsorb and enrich the analyte in the sample. Its greatest feature is that it can concentrate the analyte while extracting. At present, the most commonly used solid phase extraction technology is to fill the adsorbent in a short tube. When the sample solution or gas passes through, the analyte is adsorbed and extracted, and then various analytes are selectively eluted with different solvents.

[0003] Liquor flavors are an important type of substance that increases the taste of liquor products and distinguishes different types of products. When industrially producing liquor-related products, it is necessary to analyze specific flavors. At this time, the use of microextraction technology to extract and analyze samples is a simple and effective means. The existing microextraction operation uses a solid phase extraction rod for extraction, and then transfers it to a desorption device to elute the extracted sample and conduct subsequent collection and analysis. This requires carrying at least two devices to complete the analysis work. This makes the use of microextraction technology still have certain barriers. In this regard, it is now planned to design an integrated microextraction analysis device. Summary of the invention

[0004] The purpose of the present invention is to address the defects and shortcomings of the prior art and provide a solid phase microextraction device and method for liquor flavor substances. It aims at various extraction and enrichment methods in microextraction technology, such as direct extraction and headspace extraction, and the operation of desorption after extraction. An integrated structural device is designed and two independent partitions are arranged therein, so that extraction and desorption operations can be realized, and a lifting and adjusting structure and a heating structure are further arranged in the device, so that microextraction operations of different methods can be realized.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] The invention comprises a base, a tank body and a cover plate, wherein the tank body is fixedly arranged on the base, and the cover plate is covered and fixedly arranged on the upper port of the tank body. It also comprises:

[0007] A partition mechanism, wherein the partition mechanism is arranged in the tank body;

[0008] The adjusting mechanism is arranged on the cover plate and is movably inserted in the tank body.

[0009] Preferably, the partitioning mechanism comprises:

[0010] A heat-insulating partition, wherein the heat-insulating partition is fixedly arranged on the inner wall of the tank body, the left side of the heat-insulating partition in the tank body is set as an extraction partition, and the right side of the heat-insulating partition in the tank body is set as a desorption partition;

[0011] A heating unit, wherein the heating unit is fixedly arranged on the lower inner wall of the tank body, and the heating unit is penetrated and fixed on the heat-insulating partition;

[0012] A lifting component is arranged in the tank body on one side of the extraction partition.

[0013] Preferably, the adjustment mechanism comprises:

[0014] The installation sleeve is provided with a guide groove on the cover plate, the installation sleeve is movably inserted into the guide groove, the heat insulation partition is provided with an installation groove, and the upper end of the installation groove is connected with the guide groove;

[0015] The sealing plates are two and are respectively arranged on the upper and lower sides of the cover plate. Limiting grooves are provided on the upper and lower surfaces of the cover plate. The sealing plates are movably arranged in the limiting grooves, and the mounting sleeves are passed through and fixed on the sealing plates on the upper and lower sides.

[0016] Preferably, a support shaft is rotatably provided on the upper surface of the cover plate via a bearing, a connecting frame is fixedly provided on the support shaft, and the connecting frame is fixedly provided on the sealing plate on the upper side.

[0017] Preferably, a sealing sleeve is arranged in the installation groove on the heat-insulating partition plate, the upper end of the sealing sleeve is opened, and the sealing sleeve is opened on a side wall facing the installation sleeve.

[0018] Preferably, the lifting assembly comprises:

[0019] A lifting seat, wherein the lifting seat is arranged in the tank body at one side of the extraction partition;

[0020] An electric lifting rod, wherein the electric lifting rod is fixedly arranged on the inner wall of the tank body, and an output shaft of the electric lifting rod is fixedly arranged on the lifting seat;

[0021] A heat spreader, the heat spreader is fixedly arranged on the lifting seat;

[0022] The beaker is placed on the soaking plate, and the side edge of the upper port of the beaker is lower than the side edge of the lower end of the mounting groove.

[0023] Preferably, a support sleeve is fixedly provided on the heat-insulating baffle, a transmission shaft is movably inserted in the support sleeve, and the upper end of the transmission shaft is fixedly provided on the lower side of the sealing sleeve, and the lower end of the transmission shaft passes through the tank body and is rotated on the base through a bearing, an electric telescopic rod is fixedly provided on the base, a rack is fixedly provided on the output shaft of the electric telescopic rod, a gear is fixedly provided on the transmission shaft, and the rack is meshed with the gear.

[0024] Preferably, a guide rod is fixedly provided on the base, a guide seat is fixedly provided on the rack, and the guide seat is movably sleeved on the guide rod, and a contact switch is arranged in series on the circuit of the heating unit, wherein the fixed end of the contact switch is fixedly provided on the base, and the movable end of the contact switch is fixedly provided on the guide seat.

[0025] The method of using the device is as follows: when performing solid-phase microextraction of liquor flavor substances, the cover is opened and a beaker is taken out to hold the sample, the lifting seat is lowered so that the soaking plate is placed above the heating unit, the beaker holding the sample is placed on the soaking plate and the cover is closed, then a solid-phase extraction rod is inserted into the installation sleeve, and the installation sleeve is moved to move the solid-phase extraction rod to the extraction partition of the tank body; when performing direct extraction, the lifting seat is pushed upward by the electric lifting rod, and then the soaking plate is driven upward by the lifting seat, and the soaking plate drives the beaker to rise so that the solid-phase extraction rod is immersed in the sample in the beaker for microextraction; when performing headspace extraction, the lifting seat is lowered so that the upper side of the beaker is lower than the lower surface of the sealing sleeve, and then the electric telescopic rod is used to push the lifting seat upward to push the soaking plate upward, and the soaking plate is driven upward by the lifting seat to push the beaker upward so that the solid-phase extraction rod is immersed in the sample in the beaker for microextraction; when performing headspace extraction, the lifting seat is lowered so that the upper side of the beaker is lower than the lower surface of the sealing sleeve, and then the electric telescopic rod is used to push the lifting seat upward to push the soaking plate upward, and then the soaking plate is driven upward to push the beaker upward to push the solid-phase extraction rod into the sample in the beaker for microextraction. The rod pushes the rack, so that the rack drives the guide seat to move, so that the contact switch is closed to start the heating unit, so that the heating unit heats the heat spreader, so that the heat spreader heats the sample in the beaker to evaporate the substance in the sample and extract it through the solid phase extraction rod; after the extraction is completed, the sealing sleeve is rotated so that the side port of the sealing sleeve faces the extraction partition, and then the installation sleeve is pushed so that the installation sleeve drives the solid phase extraction rod to move into the sealing sleeve, and then the sealing sleeve is rotated so that the side port of the sealing sleeve faces the desorption partition, and then the solid phase extraction rod is moved into the desorption partition and the heating unit is started, so that the heating unit heats the internal space of the desorption partition to separate the extraction substance adsorbed on the solid phase extraction rod.

[0026] Compared with the prior art, the present invention has the following beneficial effects:

[0027] 1. The device is provided with a heat-insulating partition in the tank body, and a sealing sleeve is provided in the mounting groove on the static load heat-insulating partition, so that the tank body is divided into an extraction partition and a desorption partition. An opening is provided on the side wall of the sealing sleeve, and then a mounting sleeve is provided on the cover plate, so that a solid phase extraction rod is inserted into the tank body through the mounting sleeve to realize micro-extraction of the sample and subsequent desorption;

[0028] 2. The device is provided with a heating unit at the bottom of the entire tank, and a soaking plate is provided in the extraction partition through a lifting assembly and a beaker is placed, so that direct extraction or headspace extraction can be performed in the extraction partition, thereby realizing micro-extraction of samples in different ways;

[0029] 3. The device is provided with a sealing sleeve on the heat-insulating partition, and the transfer between the extraction partition and the desorption partition is realized by rotating the sealing sleeve, thereby realizing the integration of micro-extraction and subsequent treatment. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a structural schematic diagram of the present invention.

[0031] Figure 2 This is a schematic diagram of the structure of the tank body and partition mechanism in the present invention.

[0032] Figure 3 yes Figure 2 Upper side view of .

[0033] Figure 4 It is a structural schematic diagram of the cover plate and the sealing plate in the present invention.

[0034] Figure 5 It is a structural schematic diagram of the cover plate, guide groove and limit groove in the present invention.

[0035] Figure 6 It is a structural schematic diagram of the installation sleeve and the sealing plate in the present invention.

[0036] Figure 7 It is a structural schematic diagram of the heat insulation partition and the heating unit in the present invention.

[0037] Figure 8 It is a schematic diagram of the connection of the heat insulation baffle, the sealing sleeve and the heat spreader in the present invention.

[0038] Fig. 9 It is a structural schematic diagram of the transmission shaft, guide seat and contact switch in the present invention.

[0039] Description of reference numerals:

[0040] Base 1, tank body 2, cover plate 3, partition mechanism 4, insulation partition 4-1, extraction partition 4-2, desorption partition 4-3, heating unit 4-4, adjustment mechanism 5, mounting sleeve 5-1, guide groove 5-2, mounting groove 5-3, sealing plate 5-4, limit groove 5-5, lifting assembly 6, lifting seat 6-1, electric lifting rod 6-2, heat spreader 6-3, beaker 6-4, support shaft 7, connecting frame 8, sealing sleeve 9, support sleeve 10, transmission shaft 11, electric telescopic rod 12, rack 13, gear 14, guide rod 15, guide seat 16, contact switch 17. DETAILED DESCRIPTION

[0041] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. The preferred embodiments in the description are only used as examples, and all other embodiments obtained by those skilled in the art without making any creative work are within the scope of protection of the present invention.

[0042] like Figure 1-9 As shown, this specific implementation adopts the following technical solutions:

[0043] It comprises a base 1, a tank body 2, and a cover plate 3, wherein the tank body 2 is fixedly arranged on the base 1, and the cover plate 3 is covered and fixedly arranged on the upper port of the tank body 2. It also comprises:

[0044] A partition mechanism 4, wherein the partition mechanism 4 is arranged in the tank body 2;

[0045] An adjusting mechanism 5, wherein the adjusting mechanism 5 is arranged on the cover plate 3, and the adjusting mechanism 5 is movably inserted in the tank body 2;

[0046] Division 4 includes:

[0047] The heat-insulating partition 4-1 is fixedly arranged on the inner wall of the tank body 2, the left side of the heat-insulating partition 4-1 in the tank body 2 is set as the extraction partition 4-2, and the right side of the heat-insulating partition 4-1 in the tank body 2 is set as the desorption partition 4-3;

[0048] A heating unit 4-4, wherein the heating unit 4-4 is fixedly disposed on the lower inner wall of the tank body 2, and the heating unit 4-4 is penetrated and fixed on the heat insulating baffle 4-1;

[0049] A lifting assembly 6, wherein the lifting assembly 6 is arranged in the tank body 2 on one side of the extraction partition 4-2;

[0050] The adjustment mechanism 5 comprises:

[0051] The installation sleeve 5-1 is provided with a guide groove 5-2 on the cover plate 3, the installation sleeve 5-1 is movably inserted into the guide groove 5-2, the heat insulation partition plate 4-1 is provided with an installation groove 5-3, and the upper end of the installation groove 5-3 is connected with the guide groove 5-2;

[0052] Sealing plates 5-4, there are two sealing plates 5-4 and they are respectively arranged on the upper and lower sides of the cover plate 3, the upper and lower surfaces of the cover plate 3 are provided with limiting grooves 5-5, the sealing plates 5-4 are movably arranged in the limiting grooves 5-5, and the mounting sleeves 5-1 are passed through and fixed on the sealing plates 5-4 on the upper and lower sides;

[0053] A support shaft 7, wherein the support shaft 7 is rotatably mounted on the upper surface of the cover plate 3 via a bearing;

[0054] A connecting frame 8, wherein the connecting frame 8 is fixedly arranged on the supporting shaft 7, and the connecting frame 8 is fixedly arranged on the sealing plate 5-4 on the upper side;

[0055] A support sleeve 10, wherein the support sleeve 10 is fixedly disposed on the heat-insulating baffle 4-1, and the upper end of the support sleeve 10 is connected to the mounting groove 5-3;

[0056] The transmission shaft 11 is screwed into the support sleeve 10 through a bearing, and the lower end of the transmission shaft 11 is screwed onto the base 1 through a bearing;

[0057] The sealing sleeve 9 is fixedly arranged at the upper end of the transmission shaft 11, and the sealing sleeve 9 is arranged in the mounting groove 5-3, the upper end of the sealing sleeve 9 is connected with the guide groove 5-2, and the side wall of the sealing sleeve 9 is provided with a side end;

[0058] The lifting assembly 6 comprises:

[0059] A lifting seat 6-1, wherein the lifting seat 6-1 is arranged in the tank body 2 on one side of the extraction partition 4-2;

[0060] An electric lifting rod 6-2, wherein the electric lifting rod 6-2 is fixedly arranged on the inner wall of the tank body 2, and an output shaft of the electric lifting rod 6-2 is fixedly arranged on the lifting seat 6-1;

[0061] A heat spreader 6-3, wherein the heat spreader 6-3 is fixedly disposed on the lifting seat 6-1;

[0062] Beaker 6-4, the beaker 6-4 is placed on the heat plate 6-3, and the side edge of the upper port of the beaker 6-4 is lower than the side edge of the lower end of the mounting groove 5-3;

[0063] A guide rod 15, wherein the guide rod 15 is fixedly arranged on the base 1;

[0064] A guide seat 16, wherein the guide seat 16 is movably sleeved on the guide rod 15;

[0065] A rack 13, wherein the rack 13 is fixedly disposed on a guide seat 16;

[0066] Gear 14, the gear 14 is fixedly arranged on the transmission shaft 11, and the rack 13 is meshed with the gear 14;

[0067] An electric telescopic rod 12, wherein the electric telescopic rod 12 is fixedly arranged on the base 1, and an output shaft of the electric telescopic rod 12 is fixedly arranged on the rack 13;

[0068] The contact switch 17 is arranged in series on the circuit of the heating unit 4-4, wherein the fixed end of the contact switch 17 is fixedly arranged on the base 1, and the movable end of the contact switch 17 is fixedly arranged on the guide seat 16; then when the rack 13 moves and drives the side port of the sealing sleeve 9 toward the desorption partition 4-3, the contact switch 17 is closed and the heating unit 4-4 is started, and when the side port of the sealing sleeve 9 faces the desorption partition 4-3, the side edge of the bottom plate of the sealing sleeve 9 rotates and is placed above the beaker 6-4 located on the heat spreader 6-3 to prevent the beaker 6-4 from moving up.

[0069] When using the device, the cover plate 3 is opened and the beaker 6-4 in the extraction partition 4-2 is taken out to sample the liquor sample. After the sampling is completed, the beaker 6-4 is placed on the heat plate 6-3 and covered with the cover plate 3. Then, the solid phase extraction rod is inserted and fixed in the installation sleeve 5-1. Then, the support shaft 7 is rotated and the support shaft 7 drives the upper sealing plate 5-4 to rotate through the connecting frame 8. The sealing plate 5-4 drives the installation sleeve 5-1 to move in the vanilla, so that the sealing plates 5-4 on the upper and lower sides slide in the limiting groove 5-5, so that the installation sleeve 5-1 moves to the extraction partition 4 in the tank body 2. -2 side; when performing headspace extraction, it is necessary to heat the sample in the beaker 6-4 to accelerate evaporation. At this time, the electric telescopic rod 12 pushes the rack 13 to extend and move, and the rack 13 drives the gear 14 to rotate, and then the gear 14 drives the transmission shaft 11 to rotate, and the transmission shaft 11 drives the sealing sleeve 9 to rotate so that the side opening of the sealing sleeve 9 rotates to face the desorption partition 4-3. At this time, the side rotating frame of the bottom plate of the sealing sleeve 9 is above the beaker 6-4 to prevent the beaker 6-4 from moving upward, and the rack 13 drives the movable end and the fixed end of the contact switch 17 to close to start the heating unit 4-4, thereby heating The heat unit 4-4 heats the heat plate 6-3 to heat the sample in the beaker 6-4, so that the substances in the liquor sample are volatilized and adsorbed and extracted by the solid phase extraction rod. When performing direct extraction, the side port of the sealing sleeve 9 is adjusted to face the extraction partition 4-2. At this time, the rack 13 retracts and the contact switch 17 is disconnected, so that the heating unit 4-4 stops working. Then, the lifting seat 6-1 is pushed upward by the electric lifting rod 6-2. The lifting seat 6-1 drives the heat plate 6-3 to rise, thereby driving the beaker 6-4 to rise, and the solid phase extraction rod is inserted into the sample in the beaker 6-4. Extraction is performed; when the extraction is completed and desorption is performed, the lifting seat 6-1 is lowered so that the upper side of the beaker 6-4 is completely lower than the sealing sleeve 9, and then the installation sleeve 5-1 is pushed to drive the solid phase extraction rod to move from the side port of the sealing sleeve 9 into the sealing sleeve 9, and then the sealing sleeve 9 is rotated so that its side port faces the desorption partition 4-3. At this time, the heating unit 4-4 is driven, and then the installation sleeve 5-1 is pushed again to move the solid phase extraction rod into the desorption partition 4-3, and the substance extracted from the solid phase extraction rod is extracted into the gas phase through the heated desorption partition 4-3, so as to carry out the next step of chromatographic analysis, etc.

[0070] Compared with the prior art, the present invention has the following beneficial effects:

[0071] 1. The device is provided with a heat-insulating baffle 4-1 in the tank body 2, and a sealing sleeve 9 is provided in the mounting groove 5-3 on the static heat-insulating baffle 4-1, so as to divide the tank body 2 into an extraction partition 4-2 and a desorption partition 4-3. An opening is provided on the side wall of the sealing sleeve 9, and then a mounting sleeve 5-1 is provided on the cover plate 3, so that a solid phase extraction rod is inserted into the tank body 2 through the mounting sleeve 5-1, so as to realize micro-extraction of the sample and subsequent desorption;

[0072] 2. The device is provided with a heating unit 4-4 at the bottom of the entire tank body 2, and a soaking plate 6-3 is provided and a beaker 6-4 is placed in the extraction partition 4-2 through a lifting assembly, so that direct extraction or headspace extraction can be performed in the extraction partition 4-2, thereby realizing micro-extraction of samples in different ways;

[0073] 3. The device is provided with a sealing sleeve 9 on the heat-insulating partition 4-1, and the sealing sleeve 9 is rotated to realize the transfer between the extraction partition 4-2 and the desorption partition 4-3, thereby realizing the integration of micro-extraction and subsequent treatment.

[0074] For those skilled in the art, they can modify the technical solutions described in the aforementioned embodiments and make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A solid phase microextraction device and method for liquor flavor substances, comprising a base (1), a tank body (2), and a cover plate (3), wherein the tank body (2) is fixedly arranged on the base (1), and the cover plate (3) is fixedly arranged on the upper port of the tank body (2); characterized in that: It also contains: A partition mechanism (4), wherein the partition mechanism (4) is arranged in the tank body (2); An adjusting mechanism (5), wherein the adjusting mechanism (5) is arranged on the cover plate (3), and the adjusting mechanism (5) is movably inserted into the tank body (2).

2. A solid phase microextraction device for liquor flavor substances according to claim 1, characterized in that: The partition mechanism (4) comprises: A heat-insulating partition (4-1), wherein the heat-insulating partition (4-1) is fixedly arranged on the inner wall of the tank body (2), the left side of the heat-insulating partition (4-1) in the tank body (2) is arranged as an extraction partition (4-2), and the right side of the heat-insulating partition (4-1) in the tank body (2) is arranged as a desorption partition (4-3); A heating unit (4-4), wherein the heating unit (4-4) is fixedly arranged on the lower inner wall of the tank body (2), and the heating unit (4-4) is penetrated and fixed on the heat-insulating baffle (4-1); A lifting component (6), wherein the lifting component (6) is arranged in the tank body (2) on one side of the extraction partition (4-2).

3. A solid phase microextraction device for liquor flavor substances according to claim 2, characterized in that: The regulating mechanism (5) comprises: A mounting sleeve (5-1), a guide groove (5-2) is provided on the cover plate (3), the mounting sleeve (5-1) is movably inserted into the guide groove (5-2), a mounting groove (5-3) is provided on the heat insulation baffle (4-1), and the upper end of the mounting groove (5-3) is connected to the guide groove (5-2); The sealing plates (5-4) are two and are respectively arranged on the upper and lower sides of the cover plate (3). The upper and lower surfaces of the cover plate (3) are provided with limiting grooves (5-5). The sealing plates (5-4) are movably arranged in the limiting grooves (5-5). The mounting sleeves (5-1) are passed through and fixed on the sealing plates (5-4) on the upper and lower sides.

4. A solid phase microextraction device for liquor flavor substances according to claim 3, characterized in that: A support shaft (7) is rotatably mounted on the upper surface of the cover plate (3) via a bearing, a connecting frame (8) is fixedly mounted on the support shaft (7), and the connecting frame (8) is fixedly mounted on the sealing plate (5-4) on the upper side.

5. A solid phase microextraction device for liquor flavor substances according to claim 4, characterized in that: A sealing sleeve (9) is arranged in the installation groove (5-3) on the heat-insulating baffle (4-1), the upper end of the sealing sleeve (9) is opened, and the sealing sleeve (9) is opened on a side wall facing the installation sleeve (5-1).

6. A solid phase microextraction device for liquor flavor substances according to claim 5, characterized in that: The lifting assembly (6) comprises: A lifting seat (6-1), wherein the lifting seat (6-1) is arranged in the tank body (2) on one side of the extraction partition (4-2); An electric lifting rod (6-2), wherein the electric lifting rod (6-2) is fixedly arranged on the inner wall of the tank body (2), and an output shaft of the electric lifting rod (6-2) is fixedly arranged on the lifting seat (6-1); A heat spreader (6-3), wherein the heat spreader (6-3) is fixedly arranged on the lifting seat (6-1); A beaker (6-4) is placed on a heat soaking plate (6-3), and the side edge of the upper port of the beaker (6-4) is arranged lower than the side edge of the lower end of the mounting groove (5-3).

7. A solid phase microextraction device for liquor flavor substances according to claim 6, characterized in that: A support sleeve (10) is fixedly arranged on the heat insulation baffle (4-1), a transmission shaft (11) is movably inserted in the support sleeve (10), and the upper end of the transmission shaft (11) is fixedly arranged on the lower side of the sealing sleeve (9), and the lower end of the transmission shaft (11) passes through the tank body (2) and is screwed on the base (1) through a bearing, an electric telescopic rod (12) is fixedly arranged on the base (1), a rack (13) is fixedly arranged on the output shaft of the electric telescopic rod (12), and a gear (14) is fixedly arranged on the transmission shaft (11), and the rack (13) is meshed with the gear (14).

8. A solid phase microextraction device for liquor flavor substances according to claim 7, characterized in that: A guide rod (15) is fixedly arranged on the base (1), a guide seat (16) is fixedly arranged on the rack (13), and the guide seat (16) is movably sleeved on the guide rod (15), and a contact switch (17) is arranged in series on the circuit of the heating unit (4-4), wherein the fixed end of the contact switch (17) is fixedly arranged on the base (1), and the movable end of the contact switch (17) is fixedly arranged on the guide seat (16).

9. A method for using a solid phase microextraction device for liquor flavor substances, characterized in that: When performing solid phase microextraction of liquor flavor substances, the cover plate (3) is opened and the beaker (6-4) is taken out to hold the sample, the lifting seat (6-1) is lowered so that the heat plate (6-3) is placed above the heating unit (4-4), the beaker (6-4) holding the sample is placed on the heat plate (6-3) and the cover plate (3) is closed, then a solid phase extraction rod is taken out and inserted into the installation sleeve (5-1), and the installation sleeve (5-1) is moved to move the solid phase extraction rod to the extraction partition (4-4) of the tank body (2). -2), when direct extraction is performed, the lifting seat (6-1) is pushed upward by the electric lifting rod (6-2), and then the lifting seat (6-1) drives the heat plate (6-3) to rise, and the heat plate (6-3) drives the beaker (6-4) to rise so that the solid phase extraction rod is immersed in the sample of the beaker (6-4) to perform micro-extraction, and when headspace extraction is performed, the lifting seat (6-1) is lowered so that the upper side of the beaker (6-4) is lower than the lower surface of the sealing sleeve (9), and then the electric telescopic rod (12 ) pushes the rack (13), so that the rack (13) drives the guide seat (16) to move, so that the contact switch (17) is closed, thereby starting the heating unit (4-4), so that the heating unit (4-4) heats the heat plate (6-3), so that the heat plate (6-3) heats the sample in the beaker (6-4) so ​​that the substance in the sample evaporates and is extracted by the solid phase extraction rod; after the extraction is completed, the sealing sleeve (9) is rotated so that the side port of the sealing sleeve (9) faces the extraction partition (4-2), then push the installation sleeve (5-1) so that the installation sleeve (5-1) drives the solid phase extraction rod to move into the sealing sleeve (9), and then rotate the sealing sleeve (9) so that the side port of the sealing sleeve (9) faces the desorption partition (4-3), and then move the solid phase extraction rod into the desorption partition (4-3) and start the heating unit (4-4), so that the heating unit (4-4) heats the internal space of the desorption partition (4-3) to separate the extraction substance adsorbed on the solid phase extraction rod.

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