CN206593939U - A kind of device suitable for SPME in-site detecting - Google Patents
A kind of device suitable for SPME in-site detecting Download PDFInfo
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- CN206593939U CN206593939U CN201720311080.1U CN201720311080U CN206593939U CN 206593939 U CN206593939 U CN 206593939U CN 201720311080 U CN201720311080 U CN 201720311080U CN 206593939 U CN206593939 U CN 206593939U
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- adapter
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- spme
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Abstract
A kind of device suitable for SPME in-site detecting, it is characterised in that：Constituted including extraction pin, adapter and ground glass stoppered bottle；Wherein adapter is hollow sleeve structure, and adapter upper periphery wall is threaded, the closure screw thread cooperation with being embedded with sealing gasket, and offers open-work in the middle part of sealing hd top face；Adapter lower, outer perimeter wall is ground structure, is engaged with ground glass stoppered bottle.The upper end of closure and adapter is sealed by screw thread crush seal pad；Ground glass stoppered bottle is mutually sealed with adapter bottom by the matte surface of grournd glass.The device is in use, extraction pin carries out situ extracting from the sealed pad in closure upper end is inserted into ground glass stoppered bottle to the sample in ground glass stoppered bottle, suitable for being connected with liquid phase or gas phase instrument, for gas or liquid component analysis.The features such as device has 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 former that one kind is applied to SPME
The device of position-finding.
Background technology
SPME（SPME）Using vitreous silica optical fiber or other materials as substrate support, " phase patibhaga-nimitta is taken
It is molten " the characteristics of, in its surface-coated macromolecule stationary phase thin layer of different nature, by direct or head space mode, to determinand
Extracted, be enriched with, sample introduction and parsing.Then the fiber for being enriched determinand is transferred directly in instrument (GC or HPLC),
By certain mode desorption (usually thermal desorption, or solvent desorption), separation analysis is then carried out.
The solid-phase micro-extracting device of commercialization is developed by Supelco companies of the U.S., including extracting fiber head, handle, sealing
Extracting fiber head, is fitted into handle by the compositions such as dottle pin, absorption bottle when using, and absorption bottle of the insertion with sealing dottle pin is inhaled
It is attached.There is the absorption bottle that a distinct issues, i.e. extraction container are restricted to fixation in current the method, 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 etc.）Transfer
Into absorption bottle, then carry out sorption extraction.This process is not only easily caused the pollution of sample, and acquired in many separating experiments
Sample very trace, be often covered in after concentration on the inwall of ground glass stoppered bottle, it is difficult to shifted, therefore need badly at present
Develop a kind of ground glass stoppered bottle converting interface so that SPME can be carried out directly in ground glass stoppered bottle without turning
Move.
The content of the invention
The purpose of this utility model is to provide a kind of device suitable for SPME in-site detecting, can be directly to ground
Sample in vial carries out situ extracting, is easy to follow-up gas phase or liquid phase analysis.
To realize this purpose, the technical solution adopted in the utility model is as follows：It is in situ that one kind is applied to SPME
The device of measure, including extraction pin, adapter and ground glass stoppered bottle are constituted；Wherein adapter is hollow sleeve structure, adapter
Upper periphery wall is threaded, the closure screw thread cooperation with being embedded with sealing gasket, and is offered in the middle part of sealing hd top face
Hole；Adapter lower, outer perimeter wall is ground structure, is engaged with ground glass stoppered bottle.
The upper end of closure and adapter is sealed by screw thread crush seal pad；Ground glass stoppered bottle and adapter bottom
Mutually sealed by the matte surface of grournd glass.
The device is suitable to be connected with liquid phase or gas phase instrument, is analyzed for gas or liquid component.
In particular, extraction pin is a kind of tubular type acicular texture (commercially available), and extracting head is provided with extraction needle tubing,
For headspace extraction liquid or gaseous sample.Closure is to offer open-work, material in the middle of the hollow internal thread in top, its top surface
It is plastics or stainless steel.Ground adapter one end is that ground glass stopper coordinates with ground glass stoppered bottle, and the other end is external screw thread knot
Structure is connected with being embedded with the closure of sealing dottle pin.
In use, the extraction pin is from the sealed pad in closure upper end is inserted into ground glass stoppered bottle, to ground glass stoppered bottle
Interior sample carries out situ extracting, and extraction pin is inserted directly into GC or HPLC instruments and carries out analysis survey by extraction after terminating
It is fixed.
The features such as the utility model has simple in construction, in-site detecting, has extensive in terms of the measure of trace materials
Application prospect
Brief description of the drawings
Fig. 1 structural representations of the present utility model；
Fig. 2 is Fig. 1 sectional view；
In figure：1- extractions pin, 2- closures, 3- sealing gaskets, 4- adapters, 5- ground glass stoppered bottles.
Embodiment
The utility model is further described below in conjunction with accompanying drawing：
As shown in Figure 1, 2：A kind of device suitable for SPME in-site detecting, including extraction pin 1, the and of adapter 4
Ground glass stoppered bottle 5 is constituted；Wherein adapter 4 is hollow sleeve structure, and adapter upper periphery wall is threaded, with being embedded with
The screw thread of closure 2 of sealing gasket 3 coordinates, and offers open-work in the middle part of the top surface of closure 2；Adapter lower, outer perimeter wall is ground knot
Structure, is engaged with ground glass stoppered bottle 5.
The upper end of closure 2 and adapter 4 is sealed by screw thread crush seal pad 3；Ground glass stoppered bottle 5 and adapter
4 bottoms are mutually sealed by the matte surface of grournd glass.
In specific determination sample：Ground glass stoppered bottle after revolving is removed from revolving instrument, the ground end of adapter is inserted
Enter into the ground of revolving bottle.And be screwed sealing with the closure that is embedded with sealing dottle pin.Extraction pin is inserted by sealing gasket
Enter into ground glass stoppered bottle, extract 20 minutes.After the completion of extraction, extraction syringe needle inserts the vaporizer of gas chromatographic sampling device
It is interior, extracting fiber is exposed in high temperature carrier gas, and make extract constantly be desorbed, into the gas-chromatography point of postorder
Analysis.
Claims (3)
1. a kind of device suitable for SPME in-site detecting, it is characterised in that：Including extraction pin, adapter and ground glass
Glass bottle is constituted；Wherein adapter is hollow sleeve structure, and adapter upper periphery wall is threaded, with being embedded with sealing gasket
Closure screw thread coordinates, and offers open-work in the middle part of sealing hd top face；Adapter lower, outer perimeter wall is ground structure, with ground glass
Glass bottle is engaged.
2. the device according to claim 1 suitable for SPME in-site detecting, it is characterised in that：Closure and turn
The upper end of joint is sealed by screw thread crush seal pad；The frosted that ground glass stoppered bottle passes through grournd glass with adapter bottom
Surface is mutually sealed.
3. the device according to claim 1 suitable for SPME in-site detecting, it is characterised in that：The device is suitable to
It is connected with liquid phase or gas phase instrument, is analyzed for gas or liquid component.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720311080.1U CN206593939U (en) | 2017-03-28 | 2017-03-28 | A kind of device suitable for SPME in-site detecting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720311080.1U CN206593939U (en) | 2017-03-28 | 2017-03-28 | A kind of device suitable for SPME in-site detecting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206593939U true CN206593939U (en) | 2017-10-27 |
Family
ID=60122992
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720311080.1U Active CN206593939U (en) | 2017-03-28 | 2017-03-28 | A kind of device suitable for SPME in-site detecting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206593939U (en) |
Cited By (1)
| 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 |
-
2017
- 2017-03-28 CN CN201720311080.1U patent/CN206593939U/en active Active
Cited By (1)
| 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 |
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