CN206648999U - A kind of device suitable for surface plate original position SPME measure - Google Patents
A kind of device suitable for surface plate original position SPME measure Download PDFInfo
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- CN206648999U CN206648999U CN201720311571.6U CN201720311571U CN206648999U CN 206648999 U CN206648999 U CN 206648999U CN 201720311571 U CN201720311571 U CN 201720311571U CN 206648999 U CN206648999 U CN 206648999U
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- surface plate
- upper cavity
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- bottleneck
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Abstract
A kind of device suitable for surface plate original position SPME measure, it is characterised in that：Including extraction pin, closure and the extraction flask composition for being placed with surface plate, wherein extraction flask is linked together by upper cavity and lower chamber by sealing manner, upper cavity is provided with bottleneck, bottleneck is provided with external screw thread and is embedded with the closure screw thread cooperation of sealing gasket, and seals and offer open-work in the middle part of hd top face.Top pressure sealing gasket is coordinated to be sealed by screw thread between closure and the upper cavity bottleneck, the sealing manner of upper cavity and lower chamber can be that frosted mouth coordinates or added sealing ring cooperation.The device is in use, extraction pin carries out situ extracting from the sealed pad insertion extraction flask in closure upper end to the sample on the surface plate in bottle.The device is suitable to be connected with liquid phase or gas phase instrument, is analyzed for gas or liquid component.The utility model has the characteristics that simple in construction, in-site detecting, is with a wide range of applications in terms of the measure of trace materials.
Description
Technical field
The utility model belongs to utensil used in trace samplings analysis field, and in particular to it is in situ solid that one kind is applied to surface plate
The device of phase extraction measure.
Background technology
Solid phase micro-extraction technique (solid-phase microextraction, SPME) is that the one kind developed in recent years is new
Type Sample Pretreatment Technique, compared with conventional method, it is excellent to have that solvent-oil ratio is few, sample pollution is small, pretreatment time is short etc.
Point, therefore (R. Jiang, G. Ouyang. Fast analytical are widely used in each field at present
techniques based on microextraction, Comprehensive Analytical Chemistry 2015,
67: 85-134)。
The solid-phase micro-extracting device of commercialization is developed by Supelco companies of the U.S., including extracting fiber head, handle, sealing
Dottle pin, the absorption composition such as bottle, extracting fiber head is fitted into handle during use, insertion is inhaled with the absorption bottle for sealing dottle pin
It is attached.At present there are a distinct issues in the method, i.e. extraction container is restricted to the absorption bottle of fixation, and this causes many times
The ground glass stoppered bottle for also needing to commonly use from laboratory by the sample for separating, being concentrated to give（Conical flask, round-bottomed flask, surface plate,
Beaker etc.）It is transferred in absorption bottle, then carries out sorption extraction.This process not only easily causes the pollution of sample, and much divides
The sample very trace acquired from experiment, is often covered on the inwall of ground glass stoppered bottle, it is difficult to shifted after concentration.
Therefore need badly at present and develop a kind of device suitable for surface plate original position SPME measure so that sample need not be turned
Move.
The content of the invention
The purpose of this utility model is to provide a kind of device suitable for surface plate original position SPME measure, to realize
This purpose, the technical solution adopted in the utility model are as follows：
A kind of device suitable for surface plate original position SPME measure, including extract pin, closure and be placed with table
The extraction flask of face ware is formed, and wherein extraction flask is linked together by upper cavity and lower chamber by sealing manner, upper cavity
Provided with bottleneck, bottleneck is provided with external screw thread and is embedded with the closure screw thread cooperation of sealing gasket, and seals and opened up in the middle part of hd top face
There is open-work.
Top pressure sealing gasket is coordinated to be sealed by screw thread between closure and upper cavity bottleneck.
The sealing manner of upper cavity and lower chamber is that frosted mouth coordinates or added sealing ring cooperation.
The device is suitable to be connected with liquid phase or gas phase instrument, is analyzed for gas or liquid component.
In particular, it is a kind of tubular type acicular texture (commercially available) to extract pin, extracts in needle tubing and is provided with extracting head,
For headspace extraction liquid or gaseous sample.
In use, extraction pin is inserted into extraction flask from the sealed pad in closure upper end, to glass dish loading in extraction flask
Product carry out situ extracting.Extraction pin is inserted directly into GC or HPLC instruments and carries out analysis measure by extraction after terminating.
The utility model has the characteristics that simple in construction, in-site detecting, has in terms of the measure of trace materials extensive
Application prospect.
Brief description of the drawings
Fig. 1 structural representations of the present utility model；
Fig. 2 is Fig. 1 sectional view；
1- extractions pin, 2- closures, 3- sealing gaskets, 4- upper cavities, 5- lower chambers, 6- glass dishes（That is surface plate）.
Embodiment
The utility model is described further below in conjunction with accompanying drawing：
As shown in Figure 1, 2：A kind of device suitable for surface plate original position SPME measure, including extraction pin 1, sealing
Lid 2 and the extraction flask composition for being placed with surface plate, wherein extraction flask are connected by upper cavity 4 and lower chamber 5 by sealing manner
It is connected together, upper cavity 4 is provided with bottleneck, and bottleneck is provided with external screw thread and is embedded with the screw thread of closure 2 cooperation of sealing gasket 3, and
Open-work is offered in the middle part of the top surface of closure 2.
Top pressure sealing gasket 3 is coordinated to be sealed by screw thread between closure 2 and the bottleneck of upper cavity 4.
The sealing manner of upper cavity 4 and lower chamber 5 coordinates or added sealing ring cooperation for frosted mouth.
During specific determination sample：The glass dish 6 for being contained with sample is transferred in lower chamber 5, and upper cavity 4 is buckled in down
Mutually sealed on cavity 5.The whorl of bottleneck end of upper cavity 4 is connected and is threaded into being embedded with the closure 2 of sealing gasket 3
Top pressure sealing gasket realizes sealing.Extraction pin is inserted into upper cavity 4 by sealing gasket 3, extracted 20 minutes.After the completion of extraction,
In the vaporizer for extracting syringe needle insertion gas chromatographic sampling device, extracting fiber is set to be exposed in high temperature carrier gas, and make extract
Constantly it is desorbed, into the gas chromatographic analysis of postorder.
Claims (4)
- A kind of 1. device suitable for surface plate original position SPME measure, it is characterised in that：Including extraction pin, closure and The extraction flask for being placed with surface plate is formed, and wherein extraction flask is connected to one by upper cavity and lower chamber by sealing manner Rise, upper cavity is provided with bottleneck, and bottleneck is provided with external screw thread and is embedded with the closure screw thread cooperation of sealing gasket, and seals hd top face Middle part offers open-work.
- 2. it is applied to the device of surface plate original position SPME measure according to claim 1, it is characterised in that：Closure Top pressure sealing gasket is coordinated to be sealed by screw thread between upper cavity bottleneck.
- 3. it is applied to the device of surface plate original position SPME measure according to claim 1, it is characterised in that：Upper cavity Coordinate or add sealing ring to coordinate for frosted mouth with the sealing manner of lower chamber.
- 4. it is applied to the device of surface plate original position SPME measure according to claim 1, it is characterised in that：The device Suitable for being connected with liquid phase or gas phase instrument, analyzed for gas or liquid component.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720311571.6U CN206648999U (en) | 2017-03-28 | 2017-03-28 | A kind of device suitable for surface plate original position SPME measure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720311571.6U CN206648999U (en) | 2017-03-28 | 2017-03-28 | A kind of device suitable for surface plate original position SPME measure |
Publications (1)
| Publication Number | Publication Date |
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| CN206648999U true CN206648999U (en) | 2017-11-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201720311571.6U Active CN206648999U (en) | 2017-03-28 | 2017-03-28 | A kind of device suitable for surface plate original position SPME measure |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108310798A (en) * | 2018-04-02 | 2018-07-24 | 中国烟草总公司郑州烟草研究院 | A kind of solid phase microextraction pre-treatment component and solid-phase micro-extracting device |
| CN108310804A (en) * | 2018-04-02 | 2018-07-24 | 中国烟草总公司郑州烟草研究院 | Solid phase microextraction pre-treatment component and solid-phase micro-extracting device |
| CN108452552A (en) * | 2018-04-02 | 2018-08-28 | 中国烟草总公司郑州烟草研究院 | Solid-phase micro-extracting device and its solid phase microextraction pre-treatment component |
-
2017
- 2017-03-28 CN CN201720311571.6U patent/CN206648999U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108310798A (en) * | 2018-04-02 | 2018-07-24 | 中国烟草总公司郑州烟草研究院 | A kind of solid phase microextraction pre-treatment component and solid-phase micro-extracting device |
| CN108310804A (en) * | 2018-04-02 | 2018-07-24 | 中国烟草总公司郑州烟草研究院 | Solid phase microextraction pre-treatment component and solid-phase micro-extracting device |
| CN108452552A (en) * | 2018-04-02 | 2018-08-28 | 中国烟草总公司郑州烟草研究院 | Solid-phase micro-extracting device and its solid phase microextraction pre-treatment component |
| CN108310798B (en) * | 2018-04-02 | 2023-08-01 | 中国烟草总公司郑州烟草研究院 | Solid-phase microextraction pretreatment component and solid-phase microextraction device |
| CN108310804B (en) * | 2018-04-02 | 2023-08-01 | 中国烟草总公司郑州烟草研究院 | Solid-phase microextraction pretreatment assembly and solid-phase microextraction device |
| CN108452552B (en) * | 2018-04-02 | 2023-08-04 | 中国烟草总公司郑州烟草研究院 | Solid-phase microextraction device and solid-phase microextraction pretreatment component thereof |
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