CN202330375U - Lining tube - Google Patents
Lining tube Download PDFInfo
- Publication number
- CN202330375U CN202330375U CN2011204374068U CN201120437406U CN202330375U CN 202330375 U CN202330375 U CN 202330375U CN 2011204374068 U CN2011204374068 U CN 2011204374068U CN 201120437406 U CN201120437406 U CN 201120437406U CN 202330375 U CN202330375 U CN 202330375U
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- China
- Prior art keywords
- pipe
- sample
- housing
- test sample
- preset distance
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Abstract
The utility model provides a lining tube for test sample injection in a gas chromatography method. The lining tube comprises a hollow casing, a test sample loading tube, a discharge tube and one or a plurality of discharge holes, wherein the test sample loading tube penetrates through the casing to extend to the inside of the casing, a first preset distance is separated from the bottom end of the test sample loading tube to the top end of the casing, a combining portion of the test sample loading tube and the casing is sealed, the top end of the test sample loading tube is opened, the bottom end of the test sample loading tube is closed, and the lower portion of the test sample loading tube is used for loading a test sample and forming a vaporizing chamber. The top end of the discharge tube is combined with the bottom end of the casing and communicated with the casing, and the bottom end of the discharge tube is opened. The one or the plurality of discharge holes are formed on a lateral wall of the test sample loading tube and separated from the bottom end of the test sample loading tube for a second preset distance, and the second preset distance is smaller than the first preset distance. The lining tube is simple in structure, big in test sample loading amount, low in manufacture cost and capable of being conveniently applied to analysis using the gas chromatography method.
Description
Technical field
The utility model relates to a kind of sample injector, more particularly, relates to the bushing pipe that a kind of sample that is used for vapor-phase chromatography injects.
Background technology
Vapor-phase chromatography is a kind of in the chromatography, has moving phase and stationary phase two mutually in the chromatographic separation process, and according to the difference of used moving phase, chromatography can be divided into two big types of vapor-phase chromatography and liquid phase chromatography.Vapor-phase chromatography is utilized the adsorptive power, solubleness, affinity of material, the difference of the cloudy physical propertys such as effect that stagnate, and each component in the potpourri (sample) is separated, analyzed.Vapor-phase chromatography can be widely used in fields such as petrochemical complex, medical and health, environmental monitoring, biological chemistry.
Vapor-phase chromatography need be injected sample, therefore needs special-purpose sample injector.In the sample injector of existing vapor-phase chromatography, by glass tube elongated and linearly shape form vaporizer usually, and be provided with the base plate that is used for the sealed glass tubes bottom end opening and is inserted in the separating column front end, base plate is made of metal.In above-mentioned glass tube, because inject the base plate that sample behind the sample arrives the glass tube bottom immediately,, sample needs certain hour so getting into the top that is positioned at the separating column above the base plate then in generating gasification on the base plate, can cause test data inaccurate thus.In addition, because separating column is connected with linearity glass tube (vaporizer) bottom, therefore can not more sample be remained on vaporizer inside with liquid condition.The amount of the sample of the glass tube of injection linearity is generally 1-2 μ l (microlitre), and the amount of the sample of injection is very limited.
The utility model content
The purpose of the utility model is to overcome bushing pipe complex structure that prior art exists and the little shortcoming of charging capacity and a kind of simple in structure, bushing pipe that the sample charging capacity is big is provided.
According to the one side of the utility model, a kind of bushing pipe is provided, this bushing pipe comprises: hollow housing; Sample loads pipe, penetrates housing and extends to enclosure interior, and bottom and housing top that sample loads pipe separate first preset distance; The bound fraction that sample loads between pipe and the housing is sealed; Sample loads the top of pipe and opens wide, the bottom sealing, wherein; The bottom that sample loads pipe is used to load sample, forms vaporizer; Delivery pipe, the top of delivery pipe is attached to the bottom of housing, and is communicated with housing, the open bottom end of delivery pipe; One or more discharge orifices are formed on the position that the bottom of loading pipe with sample on the sidewall that sample loads pipe separates second preset distance, and second preset distance is less than first preset distance.
Delivery pipe can form with housing.
Second preset distance can be the half the of first preset distance.
The diameter of delivery pipe can load the equal diameters of pipe with sample.
Delivery pipe can load pipe with sample and arrange coaxially.
Housing can be a kind of in spherical shell, cylindrical housings, the elliposoidal housing.
The bushing pipe of the utility model is simple in structure, and the sample charging capacity is big, and low cost of manufacture can be conveniently used in gc analysis.
Description of drawings
In conjunction with the drawings, from the description of following embodiment, the utility model these and/or others and advantage will become clear, and are easier to understand, wherein:
Fig. 1 is the front view according to the bushing pipe of the utility model;
Fig. 2 is the vertical view according to the bushing pipe of the utility model.
Embodiment
Below, describe the embodiment of the utility model in detail with reference to accompanying drawing.
Fig. 1 is the front view according to the bushing pipe of the utility model, and Fig. 2 is the vertical view according to the bushing pipe of the utility model.This lining pipe is used for gc analysis.
See figures.1.and.2, bushing pipe comprises that hollow housing 1, sample load pipe 2 and delivery pipe 3.
It can be cylindrical tube that sample loads pipe 2, and housing 1 can be a spherical shell, and delivery pipe 3 also can be a cylindrical tube.Sample loads the diameter of the diameter of pipe 2 less than housing 1.Sample loads the top of pipe 2 and opens wide, the bottom sealing.The bottom that sample loads pipe 2 is used to load sample, forms vaporizer.Sample loads pipe 2 and penetrates housing 1 and extend to housing 1 inside to the first preset distance, that is, sample loads the bottom of pipe 2 and the top of housing 1 separates first preset distance.The bound fraction that sample loads between pipe 2 and the housing 1 is sealed.Although in the utility model, be that example has been described housing 1 with the spherical shell, the shape of housing 1 is not limited to spherical shell, also can be cylindrical housings, elliposoidal housing etc.
The position that the bottom with sample loading pipe 2 on the sidewall of sample loading pipe 2 separates second preset distance is formed with one or more discharge orifices 4.That is, the quantity of discharge orifice 4 can be one, two or more.Second preset distance is less than first preset distance.Preferably, second preset distance is the half the of first preset distance.
The top of delivery pipe 3 is attached to the bottom of housing 1, and is communicated with the open bottom end of delivery pipe 3 with housing 1.Preferably, delivery pipe 3 can form with housing 1.The diameter of delivery pipe 3 can load the equal diameters of pipe 2 with sample.In addition, delivery pipe 3 can load pipe 2 layout coaxially with sample.
When using bushing pipe according to the utility model to carry out gc analysis, through syringe (such as injection needle) sample (being generally liquid) is injected into the bottom that sample loads pipe 2, can high-temperature gas be incorporated into the bottom that sample loads pipe 2 simultaneously.The maximum temperature of high-temperature gas can reach 300 degree.Can adjust the temperature of high-temperature gas according to the test condition of vapor-phase chromatography.Sample loads the sample that loads pipe 2 bottoms and under the effect of high-temperature gas, is gasified, and then can carry out corresponding gc analysis.The major part of the product of gasification is discharged in the housing 1 through discharge orifice 4, is guided to the outside of housing 1 then by delivery pipe 3.The remainder of the product of gasification directly is discharged into the outside that sample loads pipe 2 through the open top end that sample loads pipe 2.
After the product of all gasifications all is discharged out the bushing pipe outside, can then inject other sample, carry out gc analysis next time.
Fig. 1 and Fig. 2 also show the example of each size of bushing pipe.As depicted in figs. 1 and 2, the total length of bushing pipe (loading the distance of bottom of top to the delivery pipe 3 of pipe 2 from sample) L
1Be 40mm, sample loads the length L of pipe 2
2Be 19mm, the length L of delivery pipe 3
3Be 17mm; The radius R of housing 1
1Be 6mm, sample loads the radius R of pipe 2
2Radius R with delivery pipe 3
3Be 2.5mm, the radius R of discharge orifice 4
4Be 1.25mm; Distance (that is second preset distance recited above) L between the bottom of the center of circle of discharge orifice 4 and sample loading pipe 2
4Be 4mm.Therefore, the distance L of the theoretical spherical bottom of the bottom of sample loading pipe 2 and housing 1
5=L
1-L
2-L
3=40-19-17=4mm, first preset distance then recited above (that is the distance between the top of the bottom of sample loading pipe 2 and housing 1) is: 2 * R
1-L
5=2 * 6-4=8mm.
The sample charging capacity (sample injection rate IR) that sample loads pipe 2 can reach more than the 100 μ l, is more than 50 times of sample charging capacity of existing sample injector.
Should be appreciated that above-mentioned size only is exemplary, can adjust accordingly each size according to the test needs.
The bushing pipe of the utility model is simple in structure, and the sample charging capacity is big, and low cost of manufacture can be conveniently used in gc analysis.
Though the utility model is specifically described with reference to its exemplary embodiment and is shown; But will be understood by those skilled in the art that; Under the situation of spirit that does not break away from the utility model that is defined by the claims and scope, can carry out the various changes of form and details to it.
Claims (6)
1. a bushing pipe is characterized in that, said bushing pipe comprises:
Hollow housing;
Sample loads pipe, penetrates housing and extends to enclosure interior, and bottom and housing top that sample loads pipe separate first preset distance; The bound fraction that sample loads between pipe and the housing is sealed; Sample loads the top of pipe and opens wide, the bottom sealing, wherein; The bottom that sample loads pipe is used to load sample, forms vaporizer;
Delivery pipe, the top of delivery pipe is attached to the bottom of housing, and is communicated with housing, the open bottom end of delivery pipe;
One or more discharge orifices are formed on the position that the bottom of loading pipe with sample on the sidewall that sample loads pipe separates second preset distance, and second preset distance is less than first preset distance.
2. bushing pipe according to claim 1 is characterized in that delivery pipe and housing form.
3. bushing pipe according to claim 1 is characterized in that, second preset distance is the half the of first preset distance.
4. bushing pipe according to claim 1 is characterized in that, the diameter of delivery pipe and sample load the equal diameters of pipe.
5. bushing pipe according to claim 1 is characterized in that, delivery pipe and sample load pipe and arrange coaxially.
6. according to each described bushing pipe among the claim 1-5, it is characterized in that housing is a kind of in spherical shell, cylindrical housings, the elliposoidal housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204374068U CN202330375U (en) | 2011-11-07 | 2011-11-07 | Lining tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204374068U CN202330375U (en) | 2011-11-07 | 2011-11-07 | Lining tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202330375U true CN202330375U (en) | 2012-07-11 |
Family
ID=46442351
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204374068U Expired - Fee Related CN202330375U (en) | 2011-11-07 | 2011-11-07 | Lining tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202330375U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106066370A (en) * | 2016-06-20 | 2016-11-02 | 中国科学院兰州化学物理研究所 | Gas chromatogram bushing pipe |
-
2011
- 2011-11-07 CN CN2011204374068U patent/CN202330375U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106066370A (en) * | 2016-06-20 | 2016-11-02 | 中国科学院兰州化学物理研究所 | Gas chromatogram bushing pipe |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120711 Termination date: 20171107 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |