CN211122540U - Filter cup and filter device suitable for Raman spectrum surface scanning detection method - Google Patents
Filter cup and filter device suitable for Raman spectrum surface scanning detection method Download PDFInfo
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- CN211122540U CN211122540U CN201922012197.1U CN201922012197U CN211122540U CN 211122540 U CN211122540 U CN 211122540U CN 201922012197 U CN201922012197 U CN 201922012197U CN 211122540 U CN211122540 U CN 211122540U
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Abstract
The utility model discloses a filter cup and filter equipment suitable for raman spectroscopy face scanning detection method, include: a cup body (1), a cup mouth (2) and a filtering outlet (3); wherein, the top of the cup body (1) is a cup mouth (2), and the bottom of the cup body (1) is provided with a rectangular filtering outlet (3). The utility model also discloses a filter equipment. The utility model discloses can adapt to raman spectrum surface scanning rectangle frame scanning requirement better, improve the detection efficiency of raman spectrum surface scanning widely, can detect the type of little plastics in the marine environment sample more accurately, high-efficiently, reachs physical information such as its shape, size, provides solid data support for visiting among the marine environment little plastics distribution characteristic, coastal area little plastics pollution current situation.
Description
Technical Field
The utility model belongs to the technical field of the ocean detects, concretely relates to filter cup and filter equipment suitable for raman spectrum face scanning detection method.
Background
The micro plastic is plastic fragments or particles with the diameter less than 5 mm, is widely distributed in the global sea area, and brings serious pollution to the marine environment. In order to find the distribution, variety and other characteristics of the micro-plastic in the environment, particularly in the marine environment, and to explore the physical and chemical properties of the micro-plastic and the action of the micro-plastic on the toxicological harm and the like of organisms, the micro-plastic needs to be separated from samples such as water bodies, sediments and the like, and then the micro-plastic needs to be identified and detected.
The Raman spectrum is used as a nondestructive identification technology, can quickly and accurately identify the type of the micro plastic, and the surface scanning technology can realize scanning analysis of a specific area and quickly obtain information such as the type of particles in the area, and has important significance for researching the characteristics such as the source, distribution and variety of the micro plastic.
In order to separate the micro-plastic from the liquid, the micro-plastic is needed to be filtered on the filter membrane by the filter device, the filter cup is used for containing the liquid, and the filter cup is assembled with the filter membrane, the sand core filter, the filter bottle, the vacuum pumping pump and the like to form the filter device, so that the particulate matters in the liquid are filtered on the circular area of the filter membrane, the separation purpose is achieved, and then the Raman spectrum is utilized to perform surface scanning detection on the circular area of the filter membrane.
However, practice proves that the detection technology easily causes repeated scanning or useless area scanning of a sample area, consumes a large amount of time and manpower, is low in efficiency, is not beneficial to realizing rapid detection, and meanwhile, the accuracy of a detection result is not accurate enough and has a large error.
In view of this, the present invention is especially provided.
SUMMERY OF THE UTILITY MODEL
Problem and/or not enough to prior art exist, the utility model aims to provide a filter cup and filter equipment suitable for raman spectrum face scanning detection method, detection efficiency is high, and the testing result is accurate, reliable.
The utility model provides a technical scheme as follows:
a filter cup, comprising: a cup body (1), a cup mouth (2) and a filtering outlet (3); wherein, the top of the cup body (1) is a cup mouth (2), and the bottom of the cup body (1) is provided with a rectangular filtering outlet (3).
Further, in the above-mentioned case,
in any technical scheme, the lower part of the filtering outlet (3) is provided with a frosted bottom surface (4), and the frosted bottom surface (4) is provided with a rectangular opening which has the same size as the rectangular filtering outlet (3) and is communicated up and down.
Further, in the above-mentioned case,
in any of the above technical schemes, the side length of the rectangular filtering outlet (3) is less than or equal to 3 cm; preferably, the rectangular filtration outlet (3) has a side length of 1cm to 3 cm.
Further, in the above-mentioned case,
in any of the above technical solutions, the rectangular filtering outlet is an integral multiple of the raman spectrum plane scanning rectangular frame.
A rectangular filter exit is an integer multiple of the raman spectrum plane scan rectangular box, meaning that an integer multiple (e.g., 1, 2, 3, … …, etc.) of raman spectrum plane scan rectangular boxes can be combined into a rectangular filter exit.
The utility model also provides a filter equipment mainly comprises foretell filter cup and filter membrane, psammitolite filter, filter flask and suction filtration power device.
Further, in the above-mentioned case,
in any of the above technical schemes, the opening of the frosted bottom surface of the filter cup is tightly attached to the filter membrane, the filter membrane is arranged on the sand core filter, the lower end of the sand core filter is hermetically connected with the filter bottle, and the filter bottle is connected with the suction filtration power device.
Further, in the above-mentioned case,
in any of the above technical schemes, the filter cup, the filter membrane and the sand core filter are clamped by the clamp.
The utility model also provides an application of foretell filter cup and/or foretell filter equipment in raman spectroscopy face scanning detection method.
The utility model also provides a Raman spectrum face scanning detection method, including following step:
(1) taking a liquid sample to be detected, filtering the liquid sample by the filtering device, and then enriching solid particles in the liquid sample in a rectangular area of the filtering membrane;
(2) and performing Raman spectrum surface scanning on the rectangular area of the filter membrane, defining a target area through software, and performing pseudo-color imaging according to the peak position, peak intensity and peak width of the obtained Raman spectrum to obtain the information of the component distribution and particle size of the sample in the area.
Further, in the above-mentioned case,
in any of the above technical solutions, the rectangular filtering outlet is an integral multiple of the raman spectrum plane scanning rectangular frame.
Further, in the above-mentioned case,
in any of the above technical solutions, in the step (1), the liquid sample to be detected is a flotation solution of seawater and/or marine sediments, and the solid particles in the liquid sample are micro plastics.
Further, in the above-mentioned case,
in any technical scheme, in the step (1), the liquid sample to be detected is poured into the filter cup, the suction filtration power device is started, the liquid is sucked and filtered into the filter bottle through the rectangular filter outlet, and the particulate matters in the liquid are remained in the rectangular area of the filter membrane.
The utility model discloses can adapt to raman spectrum surface scanning rectangle frame scanning requirement better, improve the detection efficiency of raman spectrum surface scanning widely, can detect the type of little plastics in the marine environment sample more accurately, high-efficiently, reachs physical information such as its shape, size, provides solid data support for visiting among the marine environment little plastics distribution characteristic, coastal area little plastics pollution current situation.
Drawings
FIG. 1 is a schematic front view of the filter cup of the present invention;
FIG. 2 is a schematic top view of the filter cup of the present invention;
in the figure: 1-cup body, 2-cup mouth, 3-filtering outlet and 4-frosted bottom surface.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the following description, together with the drawings of the present invention, clearly and completely describes the technical solution of the present invention, and based on the embodiments in the present application, other similar embodiments obtained by those skilled in the art without creative efforts shall all belong to the protection scope of the present application.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
The terms "mounted," "connected," and "connected" are to be construed broadly unless otherwise explicitly specified or limited; for example, the connection can be fixed, detachable or integrated; 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 according to specific situations by those skilled in the art.
Example 1
As shown in fig. 1 and 2, the filtering cup of the present invention comprises: the cup comprises a cup body 1, a cup opening 2 and a filtering outlet 3, wherein the cup opening 2 is arranged at the top of the cup body 1, and the filtering outlet 3 with a square shape (the side length is 2.5cm, and can also be a rectangle) is arranged at the bottom of the cup body 1;
furthermore, the lower part of the filtering outlet 3 is provided with a frosted bottom surface 4, and the frosted bottom surface 4 is provided with an opening which has the same size as the filtering outlet 3 and is communicated up and down;
the filtering device can be composed of the filtering cup, the filtering membrane, the sand core filter, the filtering bottle and the vacuum suction pump, the opening part of the 4-shaped frosted bottom surface of the filtering cup is tightly attached to the filtering membrane, the filtering membrane is arranged on the sand core filter, the filtering cup, the filtering membrane and the sand core filter can be tightly clamped by a clamp, the lower end of the sand core filter is hermetically connected with the filtering bottle, and the filtering bottle is connected with the vacuum suction pump;
during operation, a liquid sample to be detected (such as seawater, a flotation solution of marine sediments and the like) is added into a saturated sodium chloride aqueous solution, the principle that the density of the saturated sodium chloride aqueous solution is greater than that of particles of micro-plastics is utilized, the micro-plastics in the sediments float up, supernatant collected after standing is carried out, and subsequent suction filtration work is carried out) is poured into a filter cup through a cup mouth 2, a vacuum suction filtration pump is started, the liquid is suction filtered into a filter bottle through a square filtration outlet 3, and particles of the plastics and the like in the liquid can be remained in a square area of the filter membrane, so that the enrichment of the sample to be detected is realized and is concentrated in a fixed small-area square;
the Raman spectrum surface scanning detection method comprises the following steps:
(1) taking a liquid sample to be detected, filtering the liquid sample by the filtering device, and then enriching solid particles in the liquid sample in a square area of the filtering membrane;
(2) and scanning the surface of the Raman spectrum of the square area of the filter membrane, defining a target area through software, and performing pseudo-color imaging according to the peak position, peak intensity and peak width of the obtained Raman spectrum to obtain information such as component distribution, particle size and the like of the sample in the area.
The beneficial effects of the utility model are that:
(1) the original circular water outlet of the filter cup is improved into a small-area square water outlet, so that the micro-plastic can be enriched into a smaller area, the scanning requirement of a Raman spectrum surface scanning rectangular frame can be better met, useless area scanning and/or repeated scanning are effectively avoided, manpower and material resources are saved, and rapid and accurate detection is realized;
(2) the bottom surface of the filter cup is of a frosted design, so that the connection tightness of the filter cup, the filter membrane and the sand core filter can be better guaranteed;
(3) the detection efficiency of Raman spectrum surface scanning is greatly improved, the type of the micro-plastic in the marine environment sample can be detected more accurately and efficiently, the physical information such as the shape, the size and the like of the micro-plastic can be obtained, and solid data support is provided for the detection of the distribution characteristics of the micro-plastic in the marine environment and the current situation of micro-plastic pollution in a coastal zone.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (7)
1. A filter cup suitable for a Raman spectrum surface scanning detection method is characterized by comprising: a cup body (1), a cup mouth (2) and a filtering outlet (3); wherein, the top of the cup body (1) is a cup mouth (2), and the bottom of the cup body (1) is provided with a rectangular filtering outlet (3).
2. A filter cup according to claim 1, wherein the lower part of the filter outlet (3) is provided with a frosted bottom surface (4), and the frosted bottom surface (4) is provided with a rectangular opening which has the same size as the rectangular filter outlet (3) and is through from top to bottom.
3. A filter cup according to claim 1, wherein the rectangular filter outlet (3) has a side length of 1cm to 3 cm.
4. A filter cup according to claim 1 wherein the rectangular filter outlet is an integer multiple of the raman spectral plane scan rectangular frame.
5. A filtering device suitable for a Raman spectrum surface scanning detection method is characterized by mainly comprising the filtering cup, a filtering membrane, a sand core filter, a filtering bottle and a suction filtration power device, wherein the filtering cup is as claimed in any one of claims 1 to 4.
6. The filtering device as claimed in claim 5, wherein the opening of the frosted bottom surface of the filtering cup is closely attached to a filter membrane, the filter membrane is arranged on a sand core filter, the lower end of the sand core filter is connected with a filtering bottle in a sealing way, and the filtering bottle is connected with a suction filtration power device.
7. The filtration apparatus of claim 6, wherein the filter cup, the filter membrane, and the sand core filter are held by a clamp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922012197.1U CN211122540U (en) | 2019-11-20 | 2019-11-20 | Filter cup and filter device suitable for Raman spectrum surface scanning detection method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922012197.1U CN211122540U (en) | 2019-11-20 | 2019-11-20 | Filter cup and filter device suitable for Raman spectrum surface scanning detection method |
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| Publication Number | Publication Date |
|---|---|
| CN211122540U true CN211122540U (en) | 2020-07-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201922012197.1U Expired - Fee Related CN211122540U (en) | 2019-11-20 | 2019-11-20 | Filter cup and filter device suitable for Raman spectrum surface scanning detection method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110726714A (en) * | 2019-11-20 | 2020-01-24 | 中国科学院海洋研究所 | Filter cup, filter device and application of filter cup and filter device in Raman spectrum surface scanning detection method |
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2019
- 2019-11-20 CN CN201922012197.1U patent/CN211122540U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110726714A (en) * | 2019-11-20 | 2020-01-24 | 中国科学院海洋研究所 | Filter cup, filter device and application of filter cup and filter device in Raman spectrum surface scanning detection method |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200728 Termination date: 20211120 |
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| CF01 | Termination of patent right due to non-payment of annual fee |