CN206315512U - A kind of SPE entrance sieve apparatus and solid-phase extraction column - Google Patents
A kind of SPE entrance sieve apparatus and solid-phase extraction column Download PDFInfo
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- CN206315512U CN206315512U CN201621444538.2U CN201621444538U CN206315512U CN 206315512 U CN206315512 U CN 206315512U CN 201621444538 U CN201621444538 U CN 201621444538U CN 206315512 U CN206315512 U CN 206315512U
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- base plate
- side wall
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Abstract
The utility model discloses a kind of SPE entrance sieve apparatus and solid-phase extraction column, the entrance sieve apparatus realize the combination of side wall and base plate, add test paper neck simultaneously, the stability of test paper Position location accuracy and SLE products such as solid-phase extraction column is improved, the production craft step and number of assembling steps of product is reduced；The solid-phase extraction column Stability Analysis of Structures, easy to assembly, test paper positioning is preferable, picks and places conveniently, is particularly suitable for use in garment material residue detection field.
Description
Technical field
The utility model is related to technical field of analytical chemistry, and in particular to a kind of SPE entrance sieve apparatus and bag
Solid-phase extraction column containing the entrance sieve apparatus.
Background technology
SPE is a kind of Sample Pretreatment Technique Used developed in recent years, by liquid-solid extraction and liquid chromatography technology
It is combined and develops, is mainly used in the separation of sample, purifying and concentrates, can be improved compared with traditional liquid-liquid extraction method point
The rate of recovery of thing is analysed, more effectively separates analyte with interfering component, sample pretreatment process is reduced, with solvent usage amount
Less, the advantage such as quick, selectivity height simple to operate, favorable reproducibility, operation easy to automate, is widely used in medicine, food
The fields such as product, environment, commodity inspection, chemical industry.Solid-phase extraction column is that the one kind developed from chromatographic column is used to extract, separates, concentrates
Sample pretreatment device, be mainly used in target compound in various food, agricultural and animal products, environmental sample, biological sample
Sample pre-treatments.
Textile garment is after the azo dyes of disabling aromatic amine has been used, and in the Long Term Contact with human body, dyestuff can
It can be absorbed by the skin, and be spread in human body.These dyestuffs, may under the conditions of the biochemical reaction that human homergy occurs
Decompose reduction reaction, and discharge carcinogenic aromatic amine, the carcinogenic aromatic amine passes through activation, can change the DNA of human body
Structure, may cause human lesion and induce cancer.Therefore, the dyestuff residue detection of clothes is extremely important, actually detected middle sample
Product matrix is complicated, object content is very low, it is necessary to the removal of interference component and the enrichment of object are completed by pretreatment, will
Primary sample is prepared into after testing sample, can carry out follow-up analysis detection.Sample pretreatment to the sensitivity of sample analysis,
The degree of accuracy and precision have extreme influence, or even determine subsequent analysis feasibility, are the keys for determining analysis result reliability
Factor.Solid phase extraction can be used for garment material residue detection, usually be placed in detection on the upper sieve plate of solid-phase extraction column
Vat yellow test paper is used to detect colour developing and indicates to aid in detection, to ensure the positioning stablity of test paper, is often installed on upper sieve plate
Another piece of sieve plate, test paper is placed in the chamber formed between two pieces of sieve plates, but above-mentioned solid phase extraction column installs comparatively laborious, product
Structural stability is poor, and test paper picks and places the upper sieve plate that need to dismantle every time, leverages the operating efficiency entirely detected.
Utility model content
To overcome the deficiencies in the prior art, the utility model provides a kind of SPE entrance sieve apparatus, it is described enter
Mouth sieve apparatus include base plate and side wall, and the base plate is the circular flat board of perforate, and the side wall is ring-type, and it is in base plate
88 ° of -92 ° of angles, the sidewall bottom ring external diameter is identical with base plate diameter, and the side wall and base plate combine to form tubbiness, and inside can
Place test paper.
It is preferred that, the described side wall and base plate are in that 88 ° of -92 ° of angles can be 88 °, 89 °, 90 °, 91 ° or 92 °；
In one embodiment of the present utility model, the side wall is with base plate in 91 ° of angles；
Above-mentioned angle is in terms of the respective angles in base plate and side wall formation inner space；
It is preferred that, the side wall uniform wall thickness；
It is preferred that, the inner space of the tubbiness of described side wall and base plate formation can be cylindric, round table-like,
It is preferred that, uniform pore openings on described base plate；
It is preferred that, percent opening is 6-50%；
It is preferred that, pass can be circular hole, square hole or other shapes (such as rhombus)；
In a preferred embodiment of the present utility model, the oral area of the entrance sieve apparatus is that top side wall can also be wrapped
Containing inwardly protruded edge, the compressive resistance of device is put and/or improves in order to the card of test paper.
It is preferred that, described side wall and/or baseboard material are selected from：Polypropylene, polyethylene, polytetrafluoroethylene (PTFE), stainless steel and
Titanium；
The material of the side wall and base plate is preferably identical, and the side wall can be formed as one with base plate, or logical
The modes such as gluing, welding, assembling are crossed to combine.
Solid-phase extraction column specifications design, including but not limited to standard specification described in the dimensional fits of above-mentioned entrance sieve apparatus
Such as：1ml, 3ml, 6ml, 10ml, 15ml, 20ml, 30ml or 60ml (particularly 60ml solid-phase extraction column), non-standard specification
Deng.
In one embodiment of the present utility model, above-mentioned entrance sieve apparatus are used for the SPE of 60ml standard specifications
In post, wherein, the uniform wall thickness of the side wall of the sieve apparatus is 2.00mm, and side wall is with base plate in 91 ° of angles, and side wall is high
9.05mm-13.50mm, top side wall is comprising inwardly protruding, and sidewall bottom ring external diameter is identical with base plate diameter, and base plate thickness is
Perforate on 1.50mm, a diameter of 26.80mm, base plate, aperture is 0.4-0.8mm, and side wall is that polypropylene material is integrally noted with base plate
It is moulded into type.
The utility model also provides a kind of solid-phase extraction column, and it includes above-mentioned entrance sieve apparatus；
It is preferred that, described solid-phase extraction column includes being located in cylinder, entrance sieve apparatus, exit sieve plate, filler, cylinder
It is provided with the port of export at exit sieve plate, arrival end and is provided with entrance sieve apparatus, with post between entrance sieve apparatus and exit sieve plate
Filler is filled with the chamber of body formation；
It is preferred that, the material of the cylinder is selected from：Polypropylene, polyethylene, polytetrafluoroethylene (PTFE), glass and glass fibre；
In a preferred embodiment of the present utility model, the cylinder is medical grade polypropylene pipe；
Those skilled in the art can select the species of filler and filling in described solid-phase extraction column according to actual needs
Highly.
The utility model also provides a kind of solid-phase extraction device, and it includes above-mentioned solid phase extraction column；
It is preferred that, one or more above-mentioned solid phase extraction column is included in the solid-phase extraction device.
The SPE entrance sieve apparatus that the utility model is provided, realize the combination of side wall and base plate, increase simultaneously
Add test paper neck, improve test paper Position location accuracy and SLE (solid supported liquid-liquid
Extraction, solid phase support liquid-liquid extraction) product such as solid-phase extraction column stability, reduce the production craft step of product
And number of assembling steps.The solid-phase extraction column Stability Analysis of Structures that the utility model is provided, easy to assembly, test paper positioning is preferable, picks and places conveniently,
It is particularly suitable for use in garment material residue detection field.
Brief description of the drawings
Fig. 1 show solid-phase extraction column structural representation, wherein, 1- entrance sieve apparatus, 2- fillers, 3- exit sieve plates,
4- gas pressure control interfaces, 5- medical grade polypropylene pipes, 6- test paper, 7- general-purpose interfaces.
Fig. 2 show the diagrammatic cross-section of entrance sieve apparatus, wherein, 101- sides wall, 102- base plates.
Fig. 3 show the top view of entrance sieve apparatus, wherein, 103- sieve apertures.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the utility model, rather than whole realities
Apply example.
Embodiment 1
As shown in figure 1, solid-phase extraction column described in the utility model, including medical grade polypropylene pipe 5, entrance sieve apparatus
1st, exit sieve plate 3, filler 2, the upper end of medical grade polypropylene pipe 5 are provided with gas pressure control interface 4, medical grade polypropylene pipe
5 lower ends, which are provided with to be located at the big opening end of general-purpose interface 7 in infundibulate general-purpose interface 7, medical grade polypropylene pipe 5, is provided with exit sieve plate 3,
Entrance sieve apparatus 1 are provided with medical grade polypropylene pipe 5 at gas pressure control interface 4, entrance sieve apparatus 1 are built-in with
Detection test paper 6, with being filled with filler in the chamber of the formation of medical grade polypropylene pipe 5 between entrance sieve apparatus 1 and exit sieve plate 3
2。
During practical application, pressure control device can be first passed through and take out negative pressure, liquid and appropriate air are passed through into general-purpose interface 7
Medical grade polypropylene pipe 5 is pumped into, the suspension of filler and liquid is formed, the suspension is balanced into 1-2min, control pressure control
Device pressurizes, and discharges liquid, so as to complete the steps such as pre- elution, loading, washing and elution.
Embodiment 2
As shown in Fig. 2 the entrance sieve apparatus 1 described in embodiment 1 include side wall 101 and base plate 102.
The base plate 102 is the circular flat board of perforate, and its diameter is can coordinate medical grade polypropylene pipe 5 using being defined, such as
Coordinate the solid-phase extraction column of 60ml standard specifications in use, a diameter of 26.80mm of base plate 102, thickness can be 1.5mm；
The side wall 101 is ring-type, and with base plate 102 in 91 ° of angles, side wall uniform wall thickness such as can be 2mm wall thickness, side wall top
Portion includes inwardly protruding edge, and sidewall bottom ring external diameter is identical with base plate diameter；
Described side wall 101 and base plate 102 are polypropylene material, integrated injection molding formation tubbiness, and inner space is close to circle
Column, can place detection test paper, and test paper takes conveniently, and accurate positioning uses the solid-phase extraction column of the entrance sieve apparatus
Assembling is very convenient, and Stability Analysis of Structures, and compressive resistance is high.
As shown in figure 3, being uniformly provided with penetrating sieve aperture 103 on base plate 102, percent opening is 6-50%, and pass is square hole,
Can be circular hole or other conventional hole shapes, aperture is 0.4-0.8mm.
Preferred embodiment of the present utility model is the foregoing is only, it is all at this not to limit the utility model
Within the spirit and principle of utility model, any modification, equivalent for being made etc. should be included in protection of the present utility model
Within the scope of.
Claims (10)
1. a kind of SPE entrance sieve apparatus, the entrance sieve apparatus include base plate and side wall, the base plate is to open
The circular flat board in hole, the side wall is ring-type, and it is with base plate in 88 ° of -92 ° of angles, the sidewall bottom ring external diameter and base plate diameter
Identical, the side wall and base plate combine to form tubbiness.
2. entrance sieve apparatus as claimed in claim 1, it is characterised in that the side wall is in 91 ° of angles with base plate, wherein described
Angle is in terms of the respective angles in base plate and side wall formation inner space.
3. entrance sieve apparatus as claimed in claim 1, it is characterised in that the side wall uniform wall thickness；And/or, it is described
Uniform pore openings on base plate.
4. entrance sieve apparatus as claimed in claim 3, it is characterised in that the percent opening of the base plate is 6-50%；With/
Or, the pass of the perforate is circular hole or square hole.
5. entrance sieve apparatus as claimed in claim 1, it is characterised in that the top side wall also includes inwardly protruded side
Edge.
6. the entrance sieve apparatus as described in claim any one of 1-5, it is characterised in that described side wall and/or bottom plate
Material is selected from：Polypropylene, polyethylene, polytetrafluoroethylene (PTFE), stainless steel and titanium.
7. entrance sieve apparatus as claimed in claim 6, it is characterised in that the side wall is formed as one with base plate.
8. entrance sieve apparatus as claimed in claim 7, it is characterised in that the entrance sieve apparatus are applied to 60ml standards
In the solid-phase extraction column of specification, wherein, the uniform wall thickness of side wall is 2.00mm, and side wall is with base plate in 91 ° of angles, and side wall is high
9.05mm-13.50mm, top side wall includes inside projection, and sidewall bottom ring external diameter is identical with base plate diameter, is 26.80mm,
Perforate on base plate, aperture is 0.4-0.8mm, and side wall is polypropylene material integrated injection molding, wherein side wall and base plate with base plate
Between angle in terms of the respective angles in base plate and side wall formation inner space.
9. a kind of solid-phase extraction column, it includes the entrance sieve apparatus described in claim any one of 1-8.
10. solid-phase extraction column as claimed in claim 9, it is characterised in that described solid-phase extraction column includes cylinder, entrance and sieved
It is located in panel assembly, exit sieve plate, filler, cylinder at the port of export and is provided with exit sieve plate, entrance sieve apparatus is provided with arrival end,
With being filled with filler in the chamber of cylinder formation between entrance sieve apparatus and exit sieve plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621444538.2U CN206315512U (en) | 2016-12-27 | 2016-12-27 | A kind of SPE entrance sieve apparatus and solid-phase extraction column |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621444538.2U CN206315512U (en) | 2016-12-27 | 2016-12-27 | A kind of SPE entrance sieve apparatus and solid-phase extraction column |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206315512U true CN206315512U (en) | 2017-07-11 |
Family
ID=59259709
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621444538.2U Active CN206315512U (en) | 2016-12-27 | 2016-12-27 | A kind of SPE entrance sieve apparatus and solid-phase extraction column |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206315512U (en) |
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2016
- 2016-12-27 CN CN201621444538.2U patent/CN206315512U/en active Active
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