Multi-channel solid-phase micro-extraction device adaptive to sample bottles of various specifications

Abstract

The utility model discloses a multichannel solid-phase microextraction device adaptable to sample bottles of various specifications, which relates to the technical field of solid-phase microextraction, and comprises an instrument body and an adapter, and the top surface of the instrument body is provided with an extraction hole site; the top end of the adapter is provided with a positioning groove matched with the probe handle; the bottom end of the adapter is provided with a mounting groove matched with the bottle cap of the sample bottle, and the adapter is provided with a fixing piece for fixing the bottle cap of the sample bottle; the adapter is provided with a probe channel, and the probe channel extends from the positioning groove to the installation groove. When in use, the height of the small-diameter sample bottle is increased by the adapter, so that the small-diameter sample bottle can be conveniently taken out from the sample bottle, and the instrument body is adaptive to the technical processing of sample bottles of various specifications.

Description

TECHNICAL FIELD

[0001] The utility model relates to solid phase microextraction technical field, concretely to a kind of multi-channel solid phase microextraction device of multiple specifications sample bottle adaptation. BACKGROUND

[0002] Solid phase microextraction technology is based on the principle of "like dissolves like", through the fiber coated with stationary phase effective adsorption, enrichment of target analyte in sample. The technology is simple to operate, time-consuming short, determination is fast and efficient, without any organic reagent, avoid secondary pollution to environment. In addition, solid phase microextraction technology has high sensitivity, can realize ultra trace analysis, so it has been widely used in flavor analysis field. In the specific application of flavor analysis, headspace-solid phase microextraction technology is particularly common, and the technology is good at extracting volatile substances. However, when facing semi-volatile and low-volatile flavor substances, the extraction capacity of headspace-solid phase microextraction technology is significantly limited, which restricts the comprehensive application and development of solid phase microextraction technology in flavor analysis field to some extent.

[0003] Because the extraction hole diameter and depth of the extraction device in the prior art are fixed, it is generally adapted to 40ml and 60ml specification sample bottles, and when extracting small-diameter sample bottles (such as 20ml sample bottles), it is not convenient to take out from the extraction hole due to the low height of the small-diameter sample bottle, so it is not suitable for the use of small-diameter sample bottles.

[0004] Therefore, there is an urgent need for a multi-channel solid phase microextraction device that can adapt to multiple specifications of sample bottles. UTILITY MODEL CONTENTS

[0005] In view of the problems existing in the prior art, the utility model solves the problem by the following technical structure.

[0006] To achieve the above object, the utility model adopts the following technical scheme:

[0007] A multi-channel solid phase microextraction device that can adapt to multiple specifications of sample bottles, comprising: an instrument body and an adapter, the top surface of the instrument body is provided with an extraction hole;

[0008] The top end of the adapter is provided with a positioning groove adapted to the probe handle;

[0009] The bottom end of the adapter is provided with a mounting groove adapted to the sample bottle cap, and the adapter is provided with a fixing member for fixing the sample bottle cap;

[0010] The adapter is provided with a probe channel, which extends from the positioning groove to the mounting groove.

[0011] Further characterized in that,

[0012] The fixing member comprises a plurality of magnets, and the plurality of magnets are arranged in the mounting groove.

[0013] The adapter is provided with two opposite planes on the ring side.

[0014] The adapter is provided with a deformation groove on the ring side of the positioning groove.

[0015] The extraction hole position is provided with a plurality of.

[0016] The extraction hole position is provided with four.

[0017] The four extraction hole positions are distributed in a rectangular array.

[0018] The instrument body is provided with an aging port.

[0019] The instrument body is provided with a timing module.

[0020] The depth of the extraction hole position is 90mm.

[0021] The above structure of the utility model can achieve the following beneficial effects:

[0022] When using, the sample bottle is placed in the extraction hole position for processing. When the height of the small-diameter sample bottle is low, the cap end of the small-diameter sample bottle is inserted into the mounting groove of the adapter, the cap of the small-diameter sample bottle is fixed by the fixing member, and the purpose of fixing the small-diameter sample bottle is achieved. Then, the small-diameter sample bottle with the adapter is placed in the extraction hole position. During extraction, the probe is inserted into the small-diameter sample bottle from the probe channel, and then the probe handle is clamped into the positioning groove for operation. When the small-diameter sample bottle is taken out, the adapter extends the height of the small-diameter sample bottle, which facilitates the taking out of the small-diameter sample bottle, and the instrument body is suitable for the process processing of various specifications of sample bottles. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 The structure of the instrument body in the utility model is shown in the figure;

[0024] Figure 2 The structure of the adapter in the utility model is shown in the figure;

[0025] Figure 3 Another perspective structure of the adapter in the utility model is shown in the figure;

[0026] Figure 4 The structure of the adapter in the utility model is shown in the figure.

[0027] In the diagram: 1. Adapter; 11. Positioning groove; 12. Mounting groove; 13. Probe channel; 14. Plane; 15. Deformation groove; 2. Extraction well; 3. Magnet; 4. Aging port; 5. Sample vial; 6. Probe handle; 7. Probe. Detailed Implementation

[0028] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0029] It should be noted that the terms "comprising" and "having" and any variations thereof in the specification, claims and accompanying drawings of this utility model are intended to cover non-exclusive inclusion. For example, a process, method, apparatus, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such processes, methods, products or devices.

[0030] The following is in conjunction with the appendix Figures 1-4 This application will be described in further detail.

[0031] refer to Figures 1-4 The multichannel solid-phase microextraction device shown is adaptable to various sample vials and includes: an instrument body and an adapter 1. The top surface of the instrument body is provided with extraction wells 2; the top of the adapter 1 is provided with a probe handle (such as...). Figure 4 As shown in Figure 6, the adapter 1 has a positioning groove 11 that fits the sample bottle cap; the bottom of the adapter 1 is provided with a mounting groove 12 that fits the sample bottle cap, and the adapter 1 is provided with a fixing part for fixing the sample bottle cap; the adapter 1 is provided with a positioning groove 11 that fits the probe (such as...). Figure 4 (As shown in Figure 7) The probe channel 13 is adapted and extends from the positioning groove 11 to the mounting groove 12.

[0032] Based on the above structure, when using it, the sample vial (such as...) Figure 4As shown in Figure 5, the small-diameter sample bottle is placed in the extraction port 2 for processing. When the height of the small-diameter sample bottle is low, one end of the bottle cap of the small-diameter sample bottle is inserted into the mounting groove 12 of the adapter 1. The bottle cap of the small-diameter sample bottle is fixed by the fastener, thereby achieving the purpose of fixing the small-diameter sample bottle. Then, the small-diameter sample bottle with the adapter 1 is placed in the extraction port 2. During extraction, the probe is inserted into the small-diameter sample bottle from the probe channel 13. Then, the probe handle is inserted into the positioning groove 11 for operation. When the small-diameter sample bottle is taken out, since the adapter 1 extends the height of the small-diameter sample bottle (the adapter 1 is exposed outside the extraction port 2), it is easy to take out the small-diameter sample bottle from the sample bottle, so that the instrument body can be adapted to the processing of sample bottles of various specifications.

[0033] like Figure 2 and Figure 3 As shown, since the cap of the sample bottle is generally made of metal (e.g., iron), the fixing component includes several magnets 3. The several magnets 3 are set in the mounting groove 12. The sample bottle is fixed by magnetic attraction, which is convenient for disassembly and assembly. In order to facilitate the holding of the adapter 1, two opposing planes 14 are provided on the ring side of the adapter 1. The deformation groove 15 provided on the ring side of the positioning groove 11 of the adapter 1 can take into account both the fixation of the probe and the convenience of probe insertion and removal.

[0034] like Figure 1 As shown, there are multiple extraction well positions 2. In this embodiment, there are four extraction well positions 2, and the four extraction well positions 2 are arranged in a rectangular array. The design of four extraction well positions 2 can be directly used for solid phase microextraction operations in multiple sample bottles. The four extraction well positions 2 can be magnetically stirred at the same time. In addition, the built-in program can control the temperature of the extraction well positions 2 and the magnetic stirring speed, stirring time and other parameters.

[0035] Further optimizations include, for example Figure 1 As shown, the instrument body is equipped with an aging port 4. The independent aging port 4 allows users to perform aging through the independent aging port 4, thereby avoiding cross-interference with the chromatography system.

[0036] A further optimization is the inclusion of a timing module within the instrument itself. This module can keep track of the time and automatically shut off the magnetic stirring and provide an audible alert after the extraction process is complete, allowing users to proceed to the next step promptly and improving the reproducibility of the results.

[0037] In this embodiment, the depth of extraction well 2 is 90 mm, so it can be directly used to process 40 ml and 60 ml sample bottles. However, if a 20 ml sample bottle is to be processed, it needs to be used with adapter 1. The height of a 20 ml sample bottle is generally 76 mm, while the height of adapter 1 is at least 20 mm, so as to facilitate the handling of sample bottles.

[0038] The utility model discloses a work principle: when using, the sample bottle is placed in the extraction hole position 2 and processes, when the height of small diameter sample bottle is lower, the bottle cap one end of small diameter sample bottle is inserted into the mounting groove 12 of adapter 1, and the bottle cap of small diameter sample bottle is fixed through the fixed part, and then the purpose of fixing small diameter sample bottle is achieved, then the small diameter sample bottle with adapter 1 is put into the extraction hole position 2, and when extracting, the probe is inserted into small diameter sample bottle from the probe channel 13, and then the probe handle is clamped into the positioning slot 11, and is operated, when taking out small diameter sample bottle, since adapter 1 has prolonged the height of small diameter sample bottle, it is convenient to take out small diameter sample bottle from sample bottle, and the instrument body adapts to the technological processing of various specifications of sample bottle.

[0039] The above is only the preferred embodiment of the present application, and the utility model is not limited to the above examples. It can be understood that other improvements and changes directly derived or thought of by those skilled in the art without departing from the spirit and concept of the utility model should be considered to be included in the protection scope of the utility model.

Claims

1. A multi-channel solid phase microextraction device adaptable to various size sample vials, comprising: The utility model relates to an aging instrument, including: Instrument body and adapter (1), the top of instrument body is provided with the extraction hole site (2); The top of adapter (1) is provided with the positioning slot (11) of adapting with probe handle; The bottom of adapter (1) is provided with the installation slot (12) of adapting with sample bottle bottle cap, and the adapter (1) is provided with the fixing part for fixing sample bottle bottle cap; Adapter (1) is provided with probe channel (13), and probe channel (13) extends from positioning slot (11) to installation slot (12).

2. The multi-channel solid phase microextraction device of claim 1, wherein: The fixing part includes a plurality of magnets (3), and a plurality of magnets (3) are arranged in the installation slot (12).

3. The multi-channel solid phase microextraction device of claim 1, wherein: The ring side of adapter (1) is provided with two oppositely arranged planes (14).

4. The multi-channel solid phase microextraction device of claim 1, wherein: The ring side of adapter (1) is provided with deformation slot (15) in positioning slot (11).

5. The multi-channel solid phase microextraction device of claim 1, wherein: The extraction hole site (2) is provided with multiple.

6. The multi-channel solid phase microextraction device of claim 5, wherein: The extraction hole site (2) is provided with four.

7. The multi-channel solid phase microextraction device of claim 6, wherein: Four extraction hole sites (2) are distributed in a rectangular array.

8. The multi-channel solid phase microextraction device of claim 1, wherein: The instrument body is provided with aging port (4).

9. The multi-channel solid phase microextraction device of claim 1, wherein: The instrument body is provided with timing module.

10. The multi-channel solid phase microextraction device of claim 1, wherein: The depth of extraction hole site (2) is 90mm.

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