CN103091150A - Multifunctional needle type filter - Google Patents
Multifunctional needle type filter Download PDFInfo
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- CN103091150A CN103091150A CN2013100473763A CN201310047376A CN103091150A CN 103091150 A CN103091150 A CN 103091150A CN 2013100473763 A CN2013100473763 A CN 2013100473763A CN 201310047376 A CN201310047376 A CN 201310047376A CN 103091150 A CN103091150 A CN 103091150A
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- needle type
- miillpore filter
- filtration device
- type filtration
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Abstract
The invention discloses a multifunctional needle type filter. The needle type filter comprises a micro-porous filtering film a, a purification adsorbing layer and a micro-porous filtering film b which are sequentially superposed, the pore diameter of the micro-porous filtering film a is 0.2-1.0mum, the weight of the filler in the purification adsorbing layer is 10-500mg, and the pore diameter of the micro-porous filtering film b is 0.2-1.0mum. The novel multifunctional needle type filter has the advantages of ingenious structure design, use convenience, simplification of the experiment operation steps, great improvement of the work efficiency, and full satisfying of a sample pretreatment requirement.
Description
Technical field
The present invention relates to a kind of laboratory consumptive material, be specifically related to a kind of multifunctional needle type filtrator.
Background technology
In the world, annual a large amount of food, agricultural product, commodity, environmental sample etc. all need to carry out the analysis of the various chemical substances such as agricultural chemicals, veterinary drug, additive, environmental contaminants, synthetic food color, surfactant, mostly relate to purifying and the operation such as filtration when carrying out sample pre-treatments.Wherein purification process has partly adopted relatively easy dispersion solid phase extraction techniques, at first uses the various interference components in adsorbent removal component.Then, purified solution is by analyzing and testing further after the needle type filtration device.Therefore the needle type filtration device is the requisite a kind of common experimental consumptive material in laboratory at present, and it can remove the large-size particles pollutant, improves clean-up effect, and the protection instrument also improves precision of analysis and repeatability.For example the QuEchERS method is a kind of quick, convenient, cheap analytical approach, can realize high-quality agricultural and veterinary chemicals multi-residue analysis, purify the needle type filtration device of crossing 0.22 μ m or 0.45 μ m aperture with leaching liquor comprising adsorbents such as using N-propyl group ethylenediamine (PSA).Yet, when the mass disposal sample, need to take respectively various types of adsorbents mixes with leaching liquor, reach the purpose of purification to adsorb relevant chaff interference, then further draw leaching liquor and remove particle by the needle type filtration device, avoid simultaneously analytical instrument to stop up to improve the sample purification effect, the operation of these multi-steps significantly increases the sample pre-treatments workload, has brought great inconvenience to the experimenter.
Summary of the invention
The present invention provides a kind of multifunctional needle type filtrator in order to promote the practicality of prior art and product.
A kind of multifunctional needle type filtrator provided by the present invention, it comprises miillpore filter a, purification adsorbed layer and the miillpore filter b of stack successively.
In above-mentioned needle type filtration device, the aperture of described miillpore filter a can be 0.2 μ m～1.0 μ m, and the weight of the inserts of described purification adsorbed layer can be 10mg～500mg, and the aperture of described miillpore filter b can be 0.2 μ m～1.0 μ m.
In above-mentioned needle type filtration device, described needle type filtration device can be sheathed in the tube chamber of syringe, when leaching liquor is more, can first leaching liquor be injected in syringe, then under impetus, leaching liquor flow through successively described miillpore filter a, purify adsorbed layer and miillpore filter b, finally obtain the liquid through purifying and filtering.
In above-mentioned needle type filtration device, the volume of described syringe can be all sizes such as 1mL～10mL.
In above-mentioned needle type filtration device, described miillpore filter a is connected with a feed tube, described miillpore filter b is connected with a drain pipe, when the leaching liquor of getting is less, or leaching liquor is contained in the vessel that are difficult for directly pipetting, use this kind filtrator more convenient, re-use this needle type filtration device after needing during use to draw with devices such as syringes.
In above-mentioned needle type filtration device, described purification adsorbed layer is comprised of purifying adsorbent;
Described purifying adsorbent can be selected from least a in graphitized carbon, florisil silica, aluminium oxide, magnesium silicate, magnesium sulphate, benzene alkene polymer, silica gel and chemical modification object thereof, and described chemical modification silica gel can be amino silica gel of C18 silica gel, C8 silica gel, N-propyl group ethylenediamine silica gel, amino silica gel, ethyl silica gel, phenyl silica gel, cyano group silica gel, benzene sulfonic acid base silica gel or season etc.
In above-mentioned needle type filtration device, the material of described miillpore filter a and miillpore filter b all can be selected from least a in cellulose, polyamide, polysulfones, nylon, fluorine material, polyolefin, polycarbonate and polyester etc.
In above-mentioned needle type filtration device, the diameter of described miillpore filter a and miillpore filter b all can be 6mm～25mm.
The invention has the beneficial effects as follows: this Multifunction needle type filtration device, structural design is ingenious, and is easy to use, simplified the experimental implementation step, significantly improved work efficiency, can fully satisfy the demand of sample pre-treatments work.
Description of drawings
Fig. 1 is the structural representation of a kind of needle type filtration device provided by the invention.
Fig. 2 is the structural representation of another kind of needle type filtration device provided by the invention.
In figure, each mark is as follows: 1 miillpore filter a, 2 purifies adsorbed layer, 3 miillpore filter b, 4 syringes, 5 feed tubes, 6 drain pipes.
Embodiment
The present invention will be further described below in conjunction with accompanying drawing, but the present invention is not limited to following examples.
As shown in Figure 1, a kind of multifunctional needle type filtrator provided by the invention comprises miillpore filter a1, purification adsorbed layer 2 and the miillpore filter b3 of stack successively, wherein, the aperture of miillpore filter a1 is 0.45 μ m, the weight that purifies the inserts of adsorbed layer 2 is 100mg, and the aperture of miillpore filter b3 is 0.45 μ m; And the miillpore filter a1 after stack, purification adsorbed layer 2 and miillpore filter b3 are sheathed in the tube chamber of a syringe 4, and this syringe 4 can be all size of 1mL～10mL, and the filtrator of this kind structure can be fit to the many leaching liquors of filtration yield; In this needle type filtration device, miillpore filter a1 and miillpore filter b3 all can be selected from cellulose, polyamide, polysulfones, nylon, fluorine material, polyolefin, polycarbonate and polyester etc., and diameter is all sizes such as 6mm～25mm; Purify adsorbed layer 2 by the purifying adsorbent group, as be selected from graphitized carbon, florisil silica, aluminium oxide, magnesium silicate, magnesium sulphate, benzene alkene polymer, and silica gel and chemical modification object thereof (comprising the silica gel that C18, C8, N-propyl group ethylenediamine, amino, ethyl, phenyl, cyano group, benzene sulfonic acid base, season amino etc. is modified).
In above-mentioned filtrator, the aperture of the aperture of miillpore filter a1 and miillpore filter b3 all can be selected in the scope of 0.2 μ m～1.0 μ m; The weight that purifies the inserts of adsorbed layer 2 can be selected in the scope of 10mg～500mg.
As shown in Figure 2, another kind of multifunctional needle type filtrator provided by the invention comprises the miillpore filter a1 that also comprises successively stack, purifies adsorbed layer 2 and miillpore filter b3, wherein miillpore filter a1, the diameter that purifies adsorbed layer 2 and miillpore filter b3 and material select all with the needle type filtration device shown in Fig. 1 in identical; And miillpore filter a1 is connected with a feed tube 5, and leaching liquor can enter in this filtrator from this feed tube 5, and miillpore filter b3 is connected with a drain pipe 6, and the leaching liquor after purifying and filtering flows out from this drain pipe 6.
Claims (8)
1. multifunctional needle type filtrator is characterized in that: described needle type filtration device comprise stack successively miillpore filter a, purify adsorbed layer and miillpore filter b.
2. needle type filtration device according to claim 1, it is characterized in that: the aperture of described miillpore filter a is 0.2 μ m～1.0 μ m, and the weight of the inserts of described purification adsorbed layer is 10mg～500mg, the aperture of described miillpore filter b is 0.2 μ m～1.0 μ m.
3. needle type filtration device according to claim 2, it is characterized in that: described needle type filtration device is sheathed in the tube chamber of syringe.
4. needle type filtration device according to claim 3, it is characterized in that: the volume of described syringe is 1mL～10mL.
5. needle type filtration device according to claim 2, it is characterized in that: described miillpore filter a is connected with a feed tube, and described miillpore filter b is connected with a drain pipe.
6. the described needle type filtration device of any one according to claim 1-5, it is characterized in that: described purification adsorbed layer is comprised of purifying adsorbent;
Described purifying adsorbent is selected from least a in graphitized carbon, florisil silica, aluminium oxide, magnesium silicate, magnesium sulphate, benzene alkene polymer, silica gel and chemical modification object thereof.
7. needle type filtration device according to claim 6 is characterized in that: the material of described miillpore filter a and miillpore filter b all is selected from least a in cellulose, polyamide, polysulfones, nylon, fluorine material, polyolefin, polycarbonate and polyester etc.
8. needle type filtration device according to claim 7, it is characterized in that: the diameter of described miillpore filter a and miillpore filter b is 6mm～25mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100473763A CN103091150A (en) | 2012-11-13 | 2013-02-06 | Multifunctional needle type filter |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220597132.3 | 2012-11-13 | ||
| CN201220597132 | 2012-11-13 | ||
| CN2013100473763A CN103091150A (en) | 2012-11-13 | 2013-02-06 | Multifunctional needle type filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103091150A true CN103091150A (en) | 2013-05-08 |
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Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013100473763A Pending CN103091150A (en) | 2012-11-13 | 2013-02-06 | Multifunctional needle type filter |
| CN 201320068334 Expired - Lifetime CN203178126U (en) | 2012-11-13 | 2013-02-06 | Multifunctional pin type filter |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320068334 Expired - Lifetime CN203178126U (en) | 2012-11-13 | 2013-02-06 | Multifunctional pin type filter |
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| CN (2) | CN103091150A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103638742A (en) * | 2013-12-06 | 2014-03-19 | 中国农业科学院农产品加工研究所 | Filtration and purification integrated filter, device and filtration and purification integrated method |
| CN113680129A (en) * | 2021-08-10 | 2021-11-23 | 安徽农业大学 | Extracting solution purification method based on pesticide residue detection in tea and needle type filter |
| CN114534522A (en) * | 2022-01-26 | 2022-05-27 | 中国科学院兰州化学物理研究所 | Preparation and application of boron nitride polymer coating microporous filter membrane |
| CN115569435A (en) * | 2022-09-29 | 2023-01-06 | 生态环境部淮河流域生态环境监督管理局生态环境监测与科学研究中心 | Portable water sample filter |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103091150A (en) * | 2012-11-13 | 2013-05-08 | 中国农业科学院农业质量标准与检测技术研究所 | Multifunctional needle type filter |
| CN105498290A (en) * | 2015-12-23 | 2016-04-20 | 中国科学院地球化学研究所 | Separation device for polycyclic aromatic hydrocarbon solid-liquid suspension system and separation method |
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| CN201016898Y (en) * | 2007-03-05 | 2008-02-06 | 北京城市排水集团有限责任公司 | Sewage water detecting sample pretreatment column |
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| CN202223672U (en) * | 2011-09-15 | 2012-05-23 | 刘�英 | Filter type syringe |
| CN203178126U (en) * | 2012-11-13 | 2013-09-04 | 中国农业科学院农业质量标准与检测技术研究所 | Multifunctional pin type filter |
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2013
- 2013-02-06 CN CN2013100473763A patent/CN103091150A/en active Pending
- 2013-02-06 CN CN 201320068334 patent/CN203178126U/en not_active Expired - Lifetime
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201016898Y (en) * | 2007-03-05 | 2008-02-06 | 北京城市排水集团有限责任公司 | Sewage water detecting sample pretreatment column |
| CN101743317A (en) * | 2007-05-16 | 2010-06-16 | 凡利安股份有限公司 | Devices and methods for reducing matrix effects |
| CN101952456A (en) * | 2007-11-23 | 2011-01-19 | 荷兰应用自然科学研究组织Tno | System for detecting microbial contamination |
| CN201903472U (en) * | 2010-12-02 | 2011-07-20 | 天津出入境检验检疫局动植物与食品检测中心 | Pretreatment reagent kit for dinitroaniline herbicide residues in fruit and vegetables |
| CN202166633U (en) * | 2011-02-24 | 2012-03-14 | 苏州出入境检验检疫局检验检疫综合技术中心 | Polyamide solid phase extraction cartridge |
| CN202223672U (en) * | 2011-09-15 | 2012-05-23 | 刘�英 | Filter type syringe |
| CN203178126U (en) * | 2012-11-13 | 2013-09-04 | 中国农业科学院农业质量标准与检测技术研究所 | Multifunctional pin type filter |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103638742A (en) * | 2013-12-06 | 2014-03-19 | 中国农业科学院农产品加工研究所 | Filtration and purification integrated filter, device and filtration and purification integrated method |
| CN113680129A (en) * | 2021-08-10 | 2021-11-23 | 安徽农业大学 | Extracting solution purification method based on pesticide residue detection in tea and needle type filter |
| CN114534522A (en) * | 2022-01-26 | 2022-05-27 | 中国科学院兰州化学物理研究所 | Preparation and application of boron nitride polymer coating microporous filter membrane |
| CN114534522B (en) * | 2022-01-26 | 2022-10-28 | 中国科学院兰州化学物理研究所 | Preparation and application of boron nitride polymer coating microporous filter membrane |
| CN115569435A (en) * | 2022-09-29 | 2023-01-06 | 生态环境部淮河流域生态环境监督管理局生态环境监测与科学研究中心 | Portable water sample filter |
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| Publication number | Publication date |
|---|---|
| CN203178126U (en) | 2013-09-04 |
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Application publication date: 20130508 |