CN219495751U - Water sample collection and pretreatment integrated device - Google Patents
Water sample collection and pretreatment integrated device Download PDFInfo
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- CN219495751U CN219495751U CN202320365542.3U CN202320365542U CN219495751U CN 219495751 U CN219495751 U CN 219495751U CN 202320365542 U CN202320365542 U CN 202320365542U CN 219495751 U CN219495751 U CN 219495751U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/20—Controlling water pollution; Waste water treatment
Abstract
The utility model discloses a water sample collecting and preprocessing integrated device, which comprises a water sample collecting and storing device and a preprocessing device; the water sample collecting and storing device comprises a shell and a first sealing element, wherein the shell is provided with an inner cavity, the shell is provided with a first opening communicated with the inner cavity, and the first sealing element is detachably and hermetically arranged in the first opening; the pretreatment device comprises a connecting piece and a solid-phase extraction column, wherein the connecting piece can be communicated with a shell filled with a water sample and the solid-phase extraction column. The integrated device for water sample collection and pretreatment has the advantages of simple structure, low manufacturing cost, flexibility, convenience and strong applicability, and can simultaneously realize water sample collection, storage, automatic sample loading enrichment and eluting water sample collection and automatic sample loading.
Description
Technical Field
The utility model relates to the technical field of water sampling, in particular to a water sample collecting and preprocessing integrated device.
Background
The water quality safety has important practical significance for guaranteeing the health of human bodies. The key link of water quality detection is water sample collection, which is used as a safe pollution-free container-water sample sampling bag and is widely applied in the water quality detection industry. The solid phase extraction method is a pretreatment technology for detecting pollutants in a water sample, and is widely applied because the purposes of rapid separation, enrichment, purification and concentration can be achieved. However, as the water amount required by the detection of the water sample pollutants is large, the sample needs to be transferred and loaded in a separated mode in the solid phase extraction process, the operation is complex, and the detection accuracy is influenced. Therefore, an integral sampling bag for water sample collection and automatic sample loading is urgently needed to realize one-step completion of water sample collection, storage, filtration, automatic sample loading and elution, and has a wide market popularization prospect in the actual market.
Disclosure of Invention
Aiming at the technical problems, the utility model aims to provide a water sample collecting and preprocessing integrated device which has the advantages of simple structure, low manufacturing cost, flexibility, convenience and strong applicability, and can simultaneously realize the collection, storage, automatic sample loading enrichment and eluted water sample collection and automatic sample loading of a water sample.
In order to achieve the above purpose, the utility model provides a water sample collecting and preprocessing integrated device, which comprises a water sample collecting and storing device and a preprocessing device; the water sample collecting and storing device comprises a shell and a first sealing element, wherein the shell is provided with an inner cavity, the shell is provided with a first opening communicated with the inner cavity, and the first sealing element is detachably and hermetically installed in the first opening; the pretreatment device comprises a connecting piece and a solid-phase extraction column, wherein the connecting piece can be communicated with the shell filled with a water sample and the solid-phase extraction column.
In some embodiments, the connector has a first end and a second end, the first end is provided with a second seal, the second seal is detachably and sealingly mounted in the first opening after the first seal is opened, and the second end is connected to the solid phase extraction column.
In some embodiments, a second opening is further provided on the housing, the second opening being located on a side of the housing remote from the first opening and in communication with the interior cavity, and a third seal removably sealingly mounted to the second opening.
In some embodiments, the first opening and the second opening are each provided with internal threads, and the first seal, the second seal, and the third seal are each provided with external threads that mate with the internal threads;
the first seal, the second seal and the third seal are further provided with a rotating block.
In some embodiments, the solid-phase extraction column further comprises a drip speed switch, wherein the drip speed switch is arranged on a communication path between the shell and the solid-phase extraction column and can control the speed of liquid flowing through the drip speed switch.
In some embodiments, the connector is a conduit, and the drip switch is mounted to the connector to control the rate of liquid flow through the conduit.
In some embodiments, the shell is a bag made of transparent material, and the bag is also provided with scale marks.
In some embodiments, a hanging strip is further arranged on the shell, so that the shell can be conveniently hung.
In some embodiments, a filter membrane is further provided at the connection of the connector and the housing.
In some embodiments, the first sealing member is further provided with a channel communicated with the inner cavity, one end of the connecting member is fixedly connected with the channel, and the other end of the connecting member is connected with the solid-phase extraction column.
Compared with the prior art, the integrated device for water sample collection and pretreatment provided by the utility model has the following beneficial effects:
1. the integrated device for water sample collection and pretreatment has the advantages of simple structure, low manufacturing cost, flexibility, convenience and strong applicability;
2. the integrated water sample collection and pretreatment device can simultaneously realize collection, storage, automatic loading enrichment and eluted water sample collection and automatic loading of the water sample, so that the experimental operation steps are simplified, the experimental accuracy is ensured, and the experimental efficiency is improved;
3. the water sample collection and storage device and the pretreatment device can be used separately, so that the transportation of the water sample collection and storage device is facilitated.
Drawings
The above features, technical features, advantages and implementation of the present utility model will be further described in the following description of preferred embodiments with reference to the accompanying drawings in a clear and easily understood manner.
FIG. 1 is a block diagram A of a water sample collection and pretreatment integrated device;
fig. 2 is a block diagram B of a water sample collection and pretreatment integrated device.
Reference numerals illustrate:
the solid-phase extraction column comprises a shell 1, a first opening 11, a second opening 12, a first sealing piece 13, a rotating block 131, a third sealing piece 14, a hanging strip 15, a connecting piece 2, a second sealing piece 21, a dripping switch 22, a filter membrane 23 and a solid-phase extraction column 3.
Detailed Description
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the following description will explain the specific embodiments of the present utility model with reference to the accompanying drawings. It is evident that the drawings in the following description are only examples of the utility model, from which other drawings and other embodiments can be obtained by a person skilled in the art without inventive effort.
For simplicity of the drawing, only the parts relevant to the utility model are schematically shown in each drawing, and they do not represent the actual structure thereof as a product. Additionally, in order to simplify the drawing for ease of understanding, components having the same structure or function in some of the drawings are shown schematically with only one of them, or only one of them is labeled. Herein, "a" means not only "only this one" but also "more than one" case.
It should be further understood that the term "and/or" as used in this specification and the appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes such combinations.
In this context, it should be noted that the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected, unless explicitly stated or limited otherwise; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
In addition, in the description of the present application, the terms "first," "second," and the like are used merely to distinguish between descriptions and are not to be construed as indicating or implying relative importance. It should be noted that the above embodiments can be freely combined as needed. The foregoing is merely a preferred embodiment of the present utility model and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present utility model, which are intended to be comprehended within the scope of the present utility model.
Referring to fig. 1 to 2, the integrated water sample collection and pretreatment device provided by the application comprises a water sample collection and storage device and a pretreatment device; the water sample collecting and storing device comprises a shell 1 and a first sealing piece 13, wherein the shell 1 is provided with an inner cavity, the shell 1 is provided with a first opening 11 communicated with the inner cavity, and the first sealing piece 13 is detachably and hermetically arranged on the first opening 11; the pretreatment device comprises a connecting piece 2 and a solid-phase extraction column 3, wherein the connecting piece 2 can be communicated with a shell 1 filled with a water sample and the solid-phase extraction column 3.
In the embodiment, the integrated device for water sample collection and pretreatment has the advantages of simple structure, low manufacturing cost, flexibility, convenience and strong applicability, and can simultaneously realize collection, storage, automatic sample loading enrichment and eluted water sample collection and automatic sample loading of the water sample.
Further, the connecting member 2 has a first end provided with a second sealing member 21 and a second end, and after the first sealing member 13 is opened, the second sealing member 21 can be detachably and sealingly mounted in the first opening 11, and the second end is connected to the solid phase extraction column 3.
In this embodiment, water sample collection storage device can exclusive use, can transport in a large number and do not occupy the position, conveniently brings back the experiment. And after reaching the laboratory, only need open behind the first sealing member 13 with the first end of connecting piece 2 be connected with the first opening 11 of casing 1, just can guarantee water sample sealing connection and realize the automatic output of water sample with the first opening 11 of casing 1 down again, simplify experimental operation step, guarantee the experimental accuracy and improve the efficiency of experiment.
It is noted that when the housing 1 has only the first opening 11 and the first sealing member 13, the housing 1 should be soft, and the housing 1 can automatically output the water sample to the solid phase extraction column 3 by gravity depending on the atmospheric pressure after the connecting member 2 is connected with the first opening 11. The first sealing member 13 and the first end of the connecting member 2 are opened or installed by directing the first opening 11 of the housing 1 upward, so as to prevent the water sample in the housing 1 from being spilled from the first opening 11. Meanwhile, the connection mode between the second end of the connecting piece 2 and the solid-phase extraction column 3 is not limited further, and a rubber plug matched with the pipe orifice of the solid-phase extraction column 3 can be arranged at the second end of the connecting piece 2, or a threaded connection structure can be adopted.
Specifically, firstly, collecting a water sample, opening a first sealing element 13 on a shell 1, injecting the water sample into a water sample collecting and storing device from a first opening 11, covering the first sealing element 13 after the water sample is injected, then taking the collected water sample back to a laboratory, according to the step requirement of perfluoro compound pretreatment, firstly, opening the first sealing element 13 on the shell 1, then adding a perfluoro compound internal standard into the shell 1 through the first opening 11, covering the first sealing element 13, fully and uniformly mixing the perfluoro internal standard and the water sample, then opening the first sealing element 13, connecting the first end of a connecting piece 2 with the first opening 11 of the shell 1, and then downwards opening the first opening 11 of the shell 1, so that the mixed solution in the shell 1 flows into a solid-phase extraction column 3 through the connecting piece 2. And (3) flowing the mixed liquid in the shell 1, then upwards opening the first opening 11 of the shell 1 and opening the first end of the connecting piece 2, putting eluent into the shell 1, then connecting the first end of the connecting piece 2 with the first opening 11, then downwards opening the first opening 11 of the shell 1, automatically injecting the eluent into the solid-phase extraction column 3, collecting the flowing eluent, repeatedly eluting for 2 times, and measuring the collected eluent by using a chromatographic mass spectrometer internal standard method after nitrogen blowing concentration and reconstitution.
Further, the casing 1 is further provided with a second opening 12 and a third sealing member 14, the second opening 12 is located at one side of the casing 1 away from the first opening 11 and is communicated with the inner cavity, and the third sealing member 14 is detachably and hermetically mounted on the second opening 12.
In this embodiment, when water sample is collected, the third sealing member 14 should be checked and closed first to prevent water sample in the housing 1 from leaking, then the first sealing member 13 on the housing 1 is opened, water sample is injected into the water sample collection and storage device from the first opening 11, and when water sample collection is completed, the first sealing member 13 should be closed. After the water sample is brought back to the laboratory, the first opening 11 of the shell 1 is upwards, the first sealing element 13 is opened, perfluorinated compound pretreatment is carried out, perfluorinated internal standard is added into the shell 1 through the first opening 11, then the first end of the connecting piece 2 is connected with the first opening 11 of the shell 1, and then the second opening 12 of the shell 1 is upwards, so that the mixed solution in the shell 1 flows into the solid-phase extraction column 3 through the connecting piece 2. When eluent is added, the connection between the connecting piece 2 and the first opening 11 of the shell 1 is not required, the third sealing piece 14 is opened, the eluent can be added into the shell 1 from the second opening 12, the use process is simpler and more convenient, the experimental operation steps are further simplified, and the experimental efficiency is improved.
It should be noted that if the dripping speed switch 22 or the valve is not disposed on the connecting piece 2, the first opening 11 of the housing 1 should be faced upwards, the first sealing piece 13 should be opened, the perfluorinated compound pretreatment should be performed, the perfluorinated internal standard should be added into the housing 1 through the first opening 11, and then the first sealing piece 13 should be covered, so that the perfluorinated internal standard and the water sample are fully and uniformly mixed. The first seal 13 is then opened again, the first end of the connector 2 is connected to the first opening 11 of the housing 1 and the second opening 12 of the housing 1 is directed upwards, allowing the water sample to pass through the connector 2 to the solid phase extraction column 3. When the addition of eluent is required, the third seal 14 can be opened directly, eluent can be added to the housing 1 from the second opening 12 and through the connection 2 to the solid phase extraction column 3. Meanwhile, if the casing 1 is made of hard material, after the first end of the connector 2 is connected with the first opening 11 of the casing 1 and the eluent is added into the casing 1, the third sealing member 14 should be opened, so that the water sample or the eluent can reach the solid-phase extraction column 3 through the connector 2 by using atmospheric pressure. If the housing 1 is soft, the first seal 13 may be closed and the housing 1 pressed with atmospheric pressure to allow water sample or eluent to pass through the connection 2 to the solid phase extraction column 3.
Further, the first opening 11 and the second opening 12 are provided with internal threads, and the first sealing member 13, the second sealing member 21 and the third sealing member 14 are provided with external threads matched with the internal threads; the first seal 13, the second seal 21 and the third seal 14 are further provided with a rotating block 131.
In this embodiment, the first opening 11 is screwed with the first sealing member 13 or the second sealing member 21, and the second opening 12 is screwed with the third sealing member 14, so that the cost is low and the sealing performance is excellent. At the same time, the first sealing member 13, the second sealing member 21 and the third sealing member 14 are also provided with the rotating block 131, so that the first opening 11 and the second opening 12 can be opened more easily and quickly.
It should be noted that the internal threads of the first opening 11 and the second opening 12 may be the same size, and the first sealing member 13, the second sealing member 21 and the third sealing member 14 are also the same size, which improves convenience in use and reduces cost. At the same time, the first opening 11 and the second opening 12 may be external threads, and the first sealing member 13, the second sealing member 21, and the third sealing member 14 may be internal threads.
Further, the solid-phase extraction column further comprises a dripping switch 22, wherein the dripping switch 22 is arranged on a communication path between the shell 1 and the solid-phase extraction column 3, so that the flowing speed of liquid can be controlled.
In this embodiment, the drip switch 22 can control the speed of water sample flowing through, so that the water sample can be automatically loaded at a constant speed by using gravity. In performing elution, the droplet switch 22 should be adjusted to control the flow rate of the eluent to be within a suitable flow rate range.
Specifically, when the first end of the connector 2 is connected to the first opening 11 of the housing 1, the drip switch 22 is turned off, and then the first opening 11 of the housing 1 is turned down, and the drip switch 22 is adjusted to control the speed of water sample and eluent flowing through.
Further, the connector 2 is a conduit, and the drip switch 22 is mounted on the connector 2 to control the speed of the liquid flowing through the conduit.
In this embodiment, the connecting member 2 is a catheter, which is low in cost and easy to obtain, and the drip switch 22 corresponding to the connecting member is mature in technology and convenient to use.
Specifically, the drip switch 22 includes a mounting frame provided with a chute whose direction forms an acute angle with the water sample flowing direction in the conduit, and a pressurizing member capable of sliding along the chute in the water sample flowing direction, and controlling the flow rate when the water sample flows through the degree of squeezing the conduit by the pressurizing member.
In a variant embodiment, the connecting element 2 may also be a rigid water pipe, the drop switch 22 may be a valve structure, such as a ball valve, which includes a valve stem, a ball and a sealing seat, the sealing seat being mounted in a pipe of the rigid water pipe, the ball being mounted in the sealing seat and provided with a fluid passage capable of communicating with the pipe; the valve rod is connected with the ball body and can drive the ball body to rotate, so that the fluid channel is communicated or staggered with the pipeline of the hard water pipe.
Further, the shell 1 is a bag made of transparent material, and scale marks are also arranged on the bag.
In this embodiment, casing 1 is made for transparent material and casing 1 surface still is equipped with the scale mark, can observe the capacity size of the interior water sample of casing 1 through the scale mark, makes things convenient for the water sample to gather and the calculation of the water sample capacity of in-process of loading. And the shell 1 is a bag which is a common medical product and has low price. And the bag can accept atmospheric pressure and extrude inside liquid, need not to open second opening 12 and maintain inside atmospheric pressure, just can make the liquid in the bag realize automatic sample loading through self gravity, it is more convenient to use, and the leakproofness is stronger, and the experimental result is more accurate.
Further, a hanging belt 15 is further arranged on the shell 1, so that the shell 1 can be conveniently hung.
In this embodiment, suspender 15 can hang water sample collection storage device in preset position, conveniently hangs, can utilize gravity to realize the interior water sample automatic loading of casing 1.
Further, a filter membrane 23 is also arranged at the joint of the connecting piece 2 and the shell 1.
In this embodiment, the filter membrane 23 can filter impurities in the water sample, prevent impurities from blocking the connecting piece 2, and can also ensure the accuracy of experiments.
In particular, the filter membrane 23 is mounted at a first end of the connector 2, where it is opened for easy and easy cleaning of filtered-out impurities.
In a variant embodiment, the first sealing member 13 may also be provided with a channel communicating with the inner cavity, and one end of the connecting member 2 is fixedly connected with the channel, and the other end is connected with the solid phase extraction column 3.
In this embodiment, the connecting piece 2 is fixedly connected with the channel of the first sealing piece 13, so that the water sample in the shell 1 does not need to be transferred, the water sample can be directly pretreated, the experimental operation steps are simplified, and the experimental efficiency is improved.
It is worth noting that after the connecting piece 2 is fixedly connected with the channel of the first sealing piece 13, a valve is arranged on the channel of the first sealing piece 13 or a dripping switch 22 is arranged on the connecting piece 2, and the valve or the dripping switch 22 is required to be closed when pretreatment is not needed, so that water samples are prevented from entering the solid-phase extraction column 3 in advance, and experimental results are prevented from being influenced.
It should be noted that the above embodiments can be freely combined as needed. The foregoing is merely a preferred embodiment of the present utility model and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present utility model, which are intended to be comprehended within the scope of the present utility model.
Claims (10)
1. A water sample collection and pretreatment integrated device, comprising:
the water sample collecting and storing device comprises a shell and a first sealing element, wherein the shell is provided with an inner cavity, the shell is provided with a first opening communicated with the inner cavity, and the first sealing element is detachably and hermetically installed in the first opening;
the pretreatment device comprises a connecting piece and a solid-phase extraction column, wherein the connecting piece can be communicated with the shell filled with a water sample and the solid-phase extraction column.
2. A water sample collection and pretreatment integrated device according to claim 1, wherein,
the connecting piece has first end and second end, first end is equipped with the second sealing member, after the first sealing member is opened, the second sealing member can detachably seal install in first opening, the second end is connected the solid phase extraction post.
3. A water sample collection and pretreatment integrated device according to claim 2, wherein,
the shell is further provided with a second opening and a third sealing piece, the second opening is located on one side, far away from the first opening, of the shell and is communicated with the inner cavity, and the third sealing piece is detachably and hermetically installed in the second opening.
4. A water sample collection and pretreatment integrated device according to claim 3, wherein,
the first opening and the second opening are respectively provided with an internal thread, and the first sealing piece, the second sealing piece and the third sealing piece are respectively provided with an external thread matched with the internal thread;
the first seal, the second seal and the third seal are further provided with a rotating block.
5. A water sample collection and pretreatment integrated device according to any of the claims 1-4, wherein,
the liquid extraction device also comprises a dripping speed switch, wherein the dripping speed switch is arranged on the communication path of the shell and the solid phase extraction column, and can control the speed of liquid flowing through.
6. A water sample collection and pretreatment integrated device according to claim 5, wherein,
the connecting piece is a conduit, and the drip switch is arranged on the connecting piece and can control the speed of liquid flowing through the conduit.
7. A water sample collection and pretreatment integrated device according to claim 1, wherein,
the shell is a bag made of transparent materials, and scale marks are further arranged on the bag.
8. A water sample collection and pretreatment integrated device according to claim 1, wherein,
and a hanging belt is further arranged on the shell, so that the shell is convenient to hang.
9. A water sample collection and pretreatment integrated device according to claim 1, wherein,
and a filter membrane is further arranged at the joint of the connecting piece and the shell.
10. A water sample collection and pretreatment integrated device according to claim 1, wherein,
the first sealing piece is also provided with a channel communicated with the inner cavity, one end of the connecting piece is fixedly connected with the channel, and the other end of the connecting piece is connected with the solid-phase extraction column.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320365542.3U CN219495751U (en) | 2023-03-02 | 2023-03-02 | Water sample collection and pretreatment integrated device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320365542.3U CN219495751U (en) | 2023-03-02 | 2023-03-02 | Water sample collection and pretreatment integrated device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219495751U true CN219495751U (en) | 2023-08-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320365542.3U Active CN219495751U (en) | 2023-03-02 | 2023-03-02 | Water sample collection and pretreatment integrated device |
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| CN (1) | CN219495751U (en) |
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2023
- 2023-03-02 CN CN202320365542.3U patent/CN219495751U/en active Active
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