CN209166971U - A kind of Solid Phase Extraction large volume sample injection sinker - Google Patents
A kind of Solid Phase Extraction large volume sample injection sinker Download PDFInfo
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- CN209166971U CN209166971U CN201822049288.8U CN201822049288U CN209166971U CN 209166971 U CN209166971 U CN 209166971U CN 201822049288 U CN201822049288 U CN 201822049288U CN 209166971 U CN209166971 U CN 209166971U
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- Prior art keywords
- large volume
- sample injection
- sinker
- phase extraction
- volume sample
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- 238000002347 injection Methods 0.000 title claims abstract description 41
- 239000007924 injection Substances 0.000 title claims abstract description 41
- 238000002414 normal-phase solid-phase extraction Methods 0.000 title claims abstract description 34
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 6
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 6
- -1 polytetrafluoroethylene Polymers 0.000 claims description 4
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 4
- 238000000605 extraction Methods 0.000 abstract description 4
- 239000007790 solid phase Substances 0.000 abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 238000000034 method Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 241001465754 Metazoa Species 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000003242 anti bacterial agent Substances 0.000 description 1
- 229940088710 antibiotic agent Drugs 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002957 persistent organic pollutant Substances 0.000 description 1
- 239000000575 pesticide Substances 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
Landscapes
- Sampling And Sample Adjustment (AREA)
Abstract
The utility model discloses a kind of Solid Phase Extraction large volume sample injection sinkers, the sinker includes the reverse frustoconic ontology (1) for providing weight bearing effect and the resilient clamp member (4) for clamping large volume sample injection device line end, the resilient clamp member (4) is embedded at the top of the reverse frustoconic ontology (1), with the sample feeding pipe for clamping large volume sample injection device, the utility model, which may make, remains at sample bottle bottommost for fixing large volume sample injection device line end, it can be suitable for the pipeline of different bore large volume sample injection devices, make analysis water-like automatic, it is all enriched with by solid-phase extraction column in manual solid-phase abstraction instrument extraction process, reduce the instrument error of Solid Phase Extraction large volume loading, improve the accuracy of test.
Description
Technical field
The utility model relates to experimental instrument fields, more particularly to a kind of Solid Phase Extraction large volume sample injection sinker.
Background technique
Solid Phase Extraction is being analyzed various surrounding mediums, antibiotics in animals and plants sample, is being swashed as a kind of preconditioning technique
It is widely used in the micro quantity organic pollutants such as plain class, pesticide.The micro-content organism especially in analysis water environment, due to this kind of
Trace of the organic concentration usually at ng/L grades is horizontal, it usually needs water sample more than enrichment 1L volume, at this moment with regard to needing to use
Large volume sample injection device completes Solid Phase Extraction loading.And in solid phase extraction procedure, since part large volume sample injection device pipeline does not have
Have and be equipped with sinker or sinker shape as cylinder, to cause during loading, sample injector line end cannot protect always
It holds in sample bottle bottommost, causes after the test, water sample cannot flow completely through solid phase extraction column, sample by scheduled volume
The water sample residual for still having volume not wait in bottle, causes relatively large deviation to test result.
Summary of the invention
In order to overcome the deficiencies of the above existing technologies, the utility model is designed to provide a kind of Solid Phase Extraction substantially
Product sample introduction sinker, during solving Solid Phase Extraction large volume loading, when in particular by soft sample feeding pipe, pipeline itself
It can crimp, line end cannot completely attach to sample bottle bottom, the problem of causing water sample that cannot be enriched with completely.
In order to achieve the above object, the utility model proposes a kind of Solid Phase Extraction large volume sample injection sinker, the sinker includes
Resilient clamp portion for providing the reverse frustoconic ontology (1) of weight bearing effect and for clamping large volume sample injection device line end
Part (4), the resilient clamp member (4) is embedded at the top of the reverse frustoconic ontology (1), for clamping large volume sample injection device
Sample feeding pipe.
Preferably, the reverse frustoconic ontology 1 is that both sides are symmetrical, inverted round stage structure of central hollow, so as to large volume into
The sample introduction pipeline of sample device passes through.
Preferably, the sample introduction pipeline enters from biggish upper port (2), sinker is passed through, from more small-bore lower port
(3) it is pierced by, and is clamped by the elastic force that the resilient clamp member (4) provide.
Preferably, the reverse frustoconic ontology (1) is using polytetrafluoroethylene (PTFE) or the reverse frustoconic ontology of stainless steel.
Preferably, the lower port (3) is internally provided with slip-proofing device (5).
Preferably, the slip-proofing device (5) is antiskid thread.
Preferably, the sinker quality is 5 ~ 10 g.
Compared with prior art, a kind of Solid Phase Extraction large volume sample injection sinker of the utility model can make for fixing
Large volume sample injection device line end remains at sample bottle bottommost, can be suitable for the pipe of different bore large volume sample injection devices
Road is enriched with analysis water-like all by solid-phase extraction column in automatic, manual solid-phase abstraction instrument extraction process, reduces solid phase extraction
The instrument error for taking large volume loading improves the accuracy of test.
Detailed description of the invention
Fig. 1 is a kind of main view of Solid Phase Extraction large volume sample injection sinker of the utility model；
Fig. 2 is a kind of top view of Solid Phase Extraction large volume sample injection sinker of the utility model；
Fig. 3 is a kind of cross-sectional view of Solid Phase Extraction large volume sample injection sinker of the utility model.
Specific embodiment
Below by way of specific specific example and the embodiments of the present invention is described with reference to the drawings, those skilled in the art
Member can be understood easily the further advantage and effect of the utility model by content disclosed in the present specification.The utility model also may be used
It is implemented or is applied by other different specific examples, the various details in this specification can also be based on different viewpoints and answer
With, carried out under the spirit without departing substantially from the utility model it is various modification and change.
Fig. 1-Fig. 3 be respectively a kind of main view of Solid Phase Extraction large volume sample injection sinker of the utility model, top view and
Cross-sectional view.As shown in Figure 1-Figure 3, a kind of Solid Phase Extraction large volume sample injection sinker of the utility model, substantially for Solid Phase Extraction
Product sample injector line end remains at sample bottle bottom position, which includes for providing the reverse frustoconic of weight bearing effect
Ontology 1 and resilient clamp member 4 for clamping large volume sample injection device line end, the resilient clamp member 4 are embedded in institute
1 top of reverse frustoconic ontology is stated, for providing elastic force, for clamping the sample introduction pipeline of large volume sample injection device, controls opening for sinker
It closes, to be suitable for the sample introduction pipeline of different bores, keeps analysis water-like whole in automatic, manual solid-phase abstraction instrument extraction process
It is enriched with by solid-phase extraction column, resilient clamp member 4 answers elastic force moderate, not make the deformation of sample introduction line end be advisable.It is practical at this
In novel specific embodiments, two resilient clamp members 4 can be used and be symmetrically embedded in 1 top of the reverse frustoconic ontology, it is described fall
The material of truncated cone-shaped ontology 1 uses polytetrafluoroethylene (PTFE) or stainless steel, and sinker itself can be effectively prevent to micro-content organism in water sample
The interference such as absorption.
The reverse frustoconic ontology 1 is that both sides are symmetrical, inverted round stage structure of central hollow, for large volume sample injection device into
Sample pipeline passes through.
Sample introduction pipeline enters from biggish upper port 2, passes through sinker, is pierced by from more small-bore lower port 3, and elastic
The elastic force that hold assembly 4 provides is clamped, i.e., the sinker has the function of adjustable injection port size, and it is different to be suitable for pipeline bore
Large volume sample injection device.
Lower port 3 is internally provided with slip-proofing device 5, and when ensuring large volume sample injection, sinker is not sliding from sample introduction line end
It falls, in the utility model specific embodiment, slip-proofing device 5 uses antiskid thread, when Solid Phase Extraction large volume loading, due to heavy
The gravity of son, simultaneously because the reverse frustoconic structure that sinker uses, can make sample introduction pipeline remain at sample injection bottle most bottom
Portion.
In the utility model specific embodiment, sinker quality is 5 ~ 10 g.
As it can be seen that a kind of Solid Phase Extraction large volume sample injection sinker of the utility model can make for fixing large volume sample injection
Device line end remains at sample bottle bottommost, can be suitable for the pipeline of different bore large volume sample injection devices, make to analyze
Water sample is all enriched with by solid-phase extraction column in automatic, manual solid-phase abstraction instrument extraction process, reduces Solid Phase Extraction large volume
The instrument error of loading improves the accuracy of test.
The above embodiments are only illustrative of the principle and efficacy of the utility model, and not for limitation, this is practical new
Type.Anyone skilled in the art can repair above-described embodiment under the spirit and scope without prejudice to the utility model
Decorations and change.Therefore, the rights protection scope of the utility model, should be as listed in the claims.
Claims (7)
1. a kind of Solid Phase Extraction large volume sample injection sinker, it is characterised in that: the sinker includes acting on for providing weight bearing
Reverse frustoconic ontology (1) and resilient clamp member (4) for clamping large volume sample injection device line end, the resilient clamp
Component (4) is embedded at the top of the reverse frustoconic ontology (1), with the sample feeding pipe for clamping large volume sample injection device.
2. a kind of Solid Phase Extraction large volume sample injection sinker as described in claim 1, it is characterised in that: the reverse frustoconic sheet
Body (1) symmetrical, central hollow inverted round stage structure for both sides, so that the sample introduction pipeline of large volume sample injection device passes through.
3. a kind of Solid Phase Extraction large volume sample injection sinker as claimed in claim 2, it is characterised in that: the sample introduction pipeline from
Biggish upper port (2) enters, and passes through sinker, is pierced by from more small-bore lower port (3), and by the resilient clamp member
(4) elastic force provided is clamped.
4. a kind of Solid Phase Extraction large volume sample injection sinker as described in claim 1, it is characterised in that: the reverse frustoconic sheet
Body (1) is using polytetrafluoroethylene (PTFE) or the reverse frustoconic ontology of stainless steel.
5. a kind of Solid Phase Extraction large volume sample injection sinker as claimed in claim 3, it is characterised in that: the lower port (3)
It is internally provided with slip-proofing device (5).
6. a kind of Solid Phase Extraction large volume sample injection sinker as claimed in claim 5, it is characterised in that: the slip-proofing device
It (5) is antiskid thread.
7. a kind of Solid Phase Extraction large volume sample injection sinker as described in claim 1, it is characterised in that: the sinker quality is
5 ~ 10 g。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822049288.8U CN209166971U (en) | 2018-12-07 | 2018-12-07 | A kind of Solid Phase Extraction large volume sample injection sinker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822049288.8U CN209166971U (en) | 2018-12-07 | 2018-12-07 | A kind of Solid Phase Extraction large volume sample injection sinker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209166971U true CN209166971U (en) | 2019-07-26 |
Family
ID=67342589
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822049288.8U Active CN209166971U (en) | 2018-12-07 | 2018-12-07 | A kind of Solid Phase Extraction large volume sample injection sinker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209166971U (en) |
-
2018
- 2018-12-07 CN CN201822049288.8U patent/CN209166971U/en active Active
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