CN221287435U - Needle filter for precision analysis instrument - Google Patents
Needle filter for precision analysis instrument Download PDFInfo
- Publication number
- CN221287435U CN221287435U CN202323224811.3U CN202323224811U CN221287435U CN 221287435 U CN221287435 U CN 221287435U CN 202323224811 U CN202323224811 U CN 202323224811U CN 221287435 U CN221287435 U CN 221287435U
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- China
- Prior art keywords
- filter
- instrument
- needle
- analysis instrument
- precision analysis
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- 238000004458 analytical method Methods 0.000 title claims abstract description 28
- 238000001914 filtration Methods 0.000 claims abstract description 17
- 238000007789 sealing Methods 0.000 claims abstract description 10
- 239000012528 membrane Substances 0.000 claims abstract description 8
- 239000007788 liquid Substances 0.000 claims description 33
- 239000012535 impurity Substances 0.000 abstract description 12
- 239000002245 particle Substances 0.000 abstract description 9
- 238000001514 detection method Methods 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 8
- 239000002904 solvent Substances 0.000 abstract description 8
- 239000004743 Polypropylene Substances 0.000 abstract description 3
- 239000000463 material Substances 0.000 abstract description 3
- -1 polypropylene Polymers 0.000 abstract description 3
- 229920001155 polypropylene Polymers 0.000 abstract description 3
- 239000002699 waste material Substances 0.000 abstract description 3
- 239000000523 sample Substances 0.000 description 15
- 238000004128 high performance liquid chromatography Methods 0.000 description 2
- 239000000356 contaminant Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000003891 environmental analysis Methods 0.000 description 1
- 238000004255 ion exchange chromatography Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000012488 sample solution Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
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- Sampling And Sample Adjustment (AREA)
Abstract
The utility model relates to a needle filter for a precision analysis instrument, wherein a pipeline device is arranged on the needle filter for the precision analysis instrument; a luer connector sealing device is arranged on the pipeline device; the needle type filter is small in appearance and small in filtering amount, all materials of the needle type filter are high-strength polypropylene, the structural design of the product is precise, the filtering smoothness is guaranteed, the internal space is reasonable, the residual rate is very low, and therefore the waste of samples is reduced. The luer connector device is provided with threads, so that an anti-slip effect is achieved, the consistency of analysis results is ensured by stable filter membrane quality, and the technical problem that in the prior art, when an expensive precision analysis instrument needs to analyze a sample, the instrument is easily polluted by impurities in the sample to cause damage to the instrument, so that the sample and the solvent during detection need to be filtered in advance to remove particles and impurities to protect the instrument, and the traditional filter is easy to burst to cause equipment damage is solved.
Description
Technical Field
Embodiments of the present utility model relate to the field of gas and liquid separation and purification device manufacturing, and more particularly, to a needle filter for a precision analysis instrument.
Background
In High Performance Liquid Chromatography (HPLC) analysis and detection, the column packing is small in particle size and is easily clogged with impurity particles, so that the sample and solvent during detection need to be filtered in advance to remove particles and impurities to protect the instrument. Furthermore, ion chromatography, which is commonly used in environmental analysis, also requires that inorganic contaminants cannot be introduced in sample pretreatment, and needle filters can be used in HPLC analysis and IC analysis, filtering sample solutions, which is an important step in sample pretreatment.
In the prior art, when an expensive precision analysis instrument is required to analyze a sample, the instrument is easily damaged due to contamination by impurities in the sample, so that the sample and the solvent at the time of detection need to be filtered in advance to remove particles and impurities to protect the instrument, but the conventional filter is easily exploded to damage the equipment.
Disclosure of utility model
An object of an embodiment of the present utility model is to provide a needle filter for a precision analysis instrument, including:
A pipe device, which is arranged on the needle filter for the precision analysis instrument;
the luer connector sealing device is arranged on the pipeline device;
And the filtering device is connected with the pipeline device.
Further, the pipe device includes:
a liquid inlet pipe which is arranged on the needle filter for the precision analysis instrument;
the air release pipe is connected with the side of the liquid inlet pipe;
and the liquid outlet pipe is connected with the liquid outlet pipe below the filter cartridge.
Further, the luer connector sealing device comprises:
The liquid inlet luer connector is arranged on the liquid inlet pipe;
The air release luer connector is arranged on the air release pipe;
the liquid outlet luer connector is arranged on the liquid outlet pipe.
Further, the filtering device includes:
a filter cartridge disposed below the inlet pipe;
And the filter membrane is arranged in the filter cartridge.
Further, the liquid inlet pipe is connected with the injector.
Compared with the prior art, the embodiment of the utility model adopts the arrangement of the pipeline device on the needle filter for the precise analysis instrument; a luer connector sealing device is arranged on the pipeline device; the filtering device is connected to the pipeline device, the needle type filter is small in appearance, small in filtering quantity and always connected with the injector, all materials of the needle type filter are high-strength polypropylene, the structural design of the product is precise, the filtering smoothness is guaranteed, the internal space is reasonable, the residual rate is very low, and therefore the waste of samples is reduced. The luer connector device is provided with threads, so that an anti-slip effect is achieved, the consistency of analysis results is ensured by stable filter membrane quality, and the technical problem that in the prior art, when an expensive precision analysis instrument needs to analyze a sample, the instrument is easily polluted by impurities in the sample to cause damage to the instrument, so that the sample and the solvent during detection need to be filtered in advance to remove particles and impurities to protect the instrument, and the traditional filter is easy to burst to cause equipment damage is solved.
Drawings
Fig. 1 is a front view of the present utility model.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present utility model more apparent, embodiments of the present utility model will be described in detail below with reference to the accompanying drawings. However, those of ordinary skill in the art will understand that in various embodiments of the present utility model, numerous technical details have been set forth in order to provide a better understanding of the present utility model. The technical solutions claimed in the claims of the present utility model can be realized without these technical details and various changes and modifications based on the following embodiments.
A first embodiment of the present utility model relates to a needle filter for a precision analysis instrument, as shown in fig. 1, comprising:
A pipe device 9 is provided on a needle filter for a precision analysis instrument, the pipe device 9 being the main structure of the present embodiment;
A luer connector sealing device 10 is arranged on the pipeline device 9, and the luer connector sealing device 10 is used for guaranteeing the tightness of the pipeline device 9;
A filter device 11 is connected to the pipe device 9, and the filter device 11 is used for filtering the sample and the solvent during detection to remove particles and impurities.
In the present embodiment, the pipe device 9 is provided on a needle filter for a precision analysis instrument; a luer fitting sealing device 10 is arranged on the pipeline device 9; the filtering device 11 is connected to the pipeline device 9, the needle filter is small in appearance, small in filtering amount and always connected with the injector, all materials of the needle filter are high-strength polypropylene, the structural design of the product is precise, the filtering smoothness is guaranteed, the internal space is reasonable, the residual rate is very low, and therefore the waste of samples is reduced. The luer connector device is provided with threads, so that an anti-slip effect is achieved, the consistency of analysis results is ensured by stable filter membrane quality, and the technical problem that in the prior art, when an expensive precision analysis instrument needs to analyze a sample, the instrument is easily polluted by impurities in the sample to cause damage to the instrument, so that the sample and the solvent during detection need to be filtered in advance to remove particles and impurities to protect the instrument, and the traditional filter is easy to burst to cause equipment damage is solved.
To achieve the above technical effect, as shown in fig. 1, the pipe device 9 includes:
A liquid inlet pipe 1 is arranged on a needle filter for a precision analysis instrument, the liquid inlet pipe 1 is connected with a syringe and is used as an inflow port of a sample and a solvent;
a bleed pipe 3 is connected beside the liquid inlet pipe 1, and the bleed pipe 3 has the function of exhausting the air in the filter cartridge 5;
A drain pipe 7 is connected below the filter cartridge, the drain pipe 7 serving to drain the liquid.
To achieve the above technical effect, as shown in fig. 1, the luer sealing device 10 includes:
A liquid inlet luer connector 2 is arranged on the liquid inlet pipe 1, and the needle filter is connected with the injector through the liquid inlet luer connector 2 when in use;
the air release pipe 3 is provided with an air release luer connector 4, when the liquid to be tested reaches the inside of the filter cartridge 5, the air release luer connector 4 is firstly opened, and after the air in the filter cartridge 5 is exhausted, the air release luer connector 4 is closed;
A liquid outlet luer connector 8 is arranged on the liquid outlet pipe 7, and after the liquid passes through the filter membrane 6 under pressure, the liquid outlet luer connector 8 is opened, so that the liquid flows into the analysis instrument container through the liquid outlet pipe 7.
To achieve the above technical effect, as shown in fig. 1, the filtering device 11 includes:
A filter cartridge 5 is arranged below the liquid inlet pipe 1, and the filter cartridge 5 is a cylindrical element for filtering;
a filter membrane 6 is provided in the filter cartridge 5, and the filter membrane 6 functions to filter the sample and solvent at the time of detection to remove particles and impurities.
In order to achieve the above technical effect, as shown in fig. 1, the liquid inlet pipe 1 is connected with a syringe.
In order to achieve the above technical effects, as shown in fig. 1, a needle filter for a precision analyzer has a small shape and a small filtering amount.
It will be understood by those of ordinary skill in the art that the foregoing embodiments are specific examples of carrying out the utility model and that various changes in form and details may be made therein without departing from the spirit and scope of the utility model.
Claims (3)
1. A needle filter for a precision analysis instrument, comprising:
A pipe device, which is arranged on the needle filter for the precision analysis instrument;
the luer connector sealing device is arranged on the pipeline device;
The filtering device is connected with the pipeline device;
The pipeline device comprises:
a liquid inlet pipe which is arranged on the needle filter for the precision analysis instrument;
the air release pipe is connected with the side of the liquid inlet pipe;
The liquid outlet pipe is connected below the filter cartridge;
The luer connector sealing device comprises:
The liquid inlet luer connector is arranged on the liquid inlet pipe;
The air release luer connector is arranged on the air release pipe;
the liquid outlet luer connector is arranged on the liquid outlet pipe.
2. The needle filter for a precision analysis instrument according to claim 1, wherein the filtering means comprises:
a filter cartridge disposed below the inlet pipe;
And the filter membrane is arranged in the filter cartridge.
3. The needle filter for a precision analysis instrument according to claim 2, wherein the inlet tube is connected to a syringe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323224811.3U CN221287435U (en) | 2023-11-28 | 2023-11-28 | Needle filter for precision analysis instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323224811.3U CN221287435U (en) | 2023-11-28 | 2023-11-28 | Needle filter for precision analysis instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221287435U true CN221287435U (en) | 2024-07-09 |
Family
ID=91739688
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323224811.3U Active CN221287435U (en) | 2023-11-28 | 2023-11-28 | Needle filter for precision analysis instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221287435U (en) |
-
2023
- 2023-11-28 CN CN202323224811.3U patent/CN221287435U/en active Active
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| GR01 | Patent grant |