CN204556580U - Gas chromatograph hand sampling assistor - Google Patents
Gas chromatograph hand sampling assistor Download PDFInfo
- Publication number
- CN204556580U CN204556580U CN201520287163.2U CN201520287163U CN204556580U CN 204556580 U CN204556580 U CN 204556580U CN 201520287163 U CN201520287163 U CN 201520287163U CN 204556580 U CN204556580 U CN 204556580U
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- CN
- China
- Prior art keywords
- syringe
- impelling sheet
- core bar
- sheet
- injection tube
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- Withdrawn - After Issue
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Abstract
The utility model discloses a kind of gas chromatograph hand sampling assistor, it comprises syringe, the syringe needle that syringe is provided with, injection tube and syringe core rod are respectively equipped with " L " shape Tip protection sheet, injection tube fixed cover and adjustable syringe core rod impelling sheet, injector inlet is provided with on front side of injection tube fixed cover, the syringe fixed cover back side is provided with core bar impelling sheet chute and Tip protection sheet chute, core bar impelling sheet chute is at internal layer, Tip protection sheet chute is at skin, core bar impelling sheet chute lower end is provided with hangs core bar impelling sheet buckle, syringe fixed cover two ends are respectively equipped with injection tube front end buckle and injection tube end buckle, spring is provided with between adjustable syringe core rod impelling sheet end and injection tube fixed cover, Tip protection sheet top and bottom are respectively equipped with adjustable syringe core rod impelling sheet stuck point and syringe needle hole.The utility model has that structure is simple, easy to operate, cost is low, favorable reproducibility, and sample introduction effect is almost close to advantages such as automatic samplers.
Description
Technical field
The utility model belongs to the sample feeding field of the gas chromatograph in analytical chemistry field, is specifically related to a kind of gas chromatograph hand sampling assistor.
Background technology
The development of gas chromatographic technique has semicentennial history, and it is now a kind of suitable maturation and applies the method for separating and analyzing of complex mixture very widely.Gas chromatography belongs to column chromatography, can be divided into packed column GC and capillary column GC by chromatographic column.At present, most of user uses capillary column GC, but capillary column GC also has its limitation.Because its internal diameter is little, column capacity is little, and higher to the requirement of sampling technique, and general fluid sample sample size is 1 μ L ~ 2 μ L.Conventional chromatogram sample feeding method has hand sampling and automatic sampler sample introduction.Automatic sampler sample introduction feature is automatic sampling, automatic washing pin, auto injection, and favorable reproducibility, therefore can realize automatic analysis, alleviate the labour intensity of analyst, increase work efficiency.But automatic sampler is expensive, so many users are unworthy of automatic sampler.Even if there has been automatic sampling apparatus, time sample size is few, often use hand sampling method.Hand sampling method has that cost is low, simple operation and other advantages.Hand sampling concrete operation method is for after sampling; one hand syringes (preventing vaporizer hyperbar from being blown out by shank); another hand protection needle point (when preventing from inserting dottle pin, needle point bends); by injection needle through dottle pin; with prestissimo, syringe is inserted into the end at random; meanwhile rapidly Sample Injection is entered vaporizer, then extract syringe fast.Syringe inserts time and Sample Injection time direct impact analysis result, but each Sample Injection speed of hand sampling method is difficult to be consistent, and therefore reappearance is also poor.So whether hand sampling is skilled in technique in gas chromatography, the quality of direct impact analysis result.
Summary of the invention
The purpose of this utility model overcomes the deficiencies in the prior art, and it is simple to provide a kind of structure, cheap, easy to operate, easy to learn, hand sampling speed can be accelerated, can prevent sample introduction needle from bending simultaneously, opportunity can be injected by Quality control, injection can be reduced and discriminate against and quantitative error, make sample introduction effect almost close to the gas chromatograph hand sampling assistor of automatic sampler.
The utility model object is such realization: it comprises syringe, the syringe needle that syringe is provided with, injection tube and syringe core rod are respectively equipped with " L " shape Tip protection sheet, injection tube fixed cover and adjustable syringe core rod impelling sheet, injector inlet is provided with on front side of described injection tube fixed cover, the syringe fixed cover back side is provided with core bar impelling sheet chute and Tip protection sheet chute, core bar impelling sheet chute is at internal layer, Tip protection sheet chute is at skin, core bar impelling sheet chute lower end is provided with hangs core bar impelling sheet buckle, syringe fixed cover two ends are respectively equipped with injection tube front end buckle and injection tube end buckle, spring is provided with between adjustable syringe core rod impelling sheet end and injection tube fixed cover, described Tip protection sheet top and bottom are respectively equipped with adjustable syringe core rod impelling sheet stuck point and syringe needle hole.
Described adjustable syringe core rod impelling sheet comprises " L " core bar impelling sheet be located on syringe core rod, core bar impelling sheet support is provided with between core bar impelling sheet and core bar impelling sheet chute, be provided with positioning screw between core bar impelling sheet and core bar impelling sheet support, described both ends of the spring is located on core bar impelling sheet support and injection tube fixed cover respectively.
Owing to adopting technique scheme, the gas chromatograph hand sampling auxiliary implement that the utility model provides has the following advantages: structure is simple, cheap, easy to operate, easy to learn, hand sampling speed can be accelerated, can prevent sample introduction needle from bending simultaneously, opportunity can be injected by Quality control, injection can be reduced discriminate against and quantitative error, make sample introduction effect almost close to automatic sampler, can support the use on assay laboratory's gas chromatograph of the industries such as industry, agricultural, quality inspection, medical and health, universities and colleges.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the A place structure for amplifying schematic diagram of Fig. 1.
In the drawings: 1. syringe needle, 2. injection tube, 3. syringe core rod; 4. Tip protection sheet, 5. injection tube fixed cover, 6. injector inlet; 7. core bar impelling sheet chute, 8. Tip protection sheet chute, 9. core bar impelling sheet buckle; 10. injection tube front end buckle, 11. injection tube end buckles, 12. springs; 13. adjustable syringe core rod impelling sheet stuck points, 14. syringe needle holes, 15. core bar impelling sheets; 16. core bar impelling sheet supports, 17. positioning screws.
Embodiment
As shown in Figure 1 to Figure 2, the gas chromatograph hand sampling assistor that the utility model provides comprises syringe, the syringe needle 1 that syringe is provided with, injection tube 2 and syringe core rod 3 are respectively equipped with " L " shape Tip protection sheet 4, injection tube fixed cover 5 and adjustable syringe core rod impelling sheet, injector inlet 6 is provided with on front side of described injection tube fixed cover 5, injection tube fixed cover 5 back side is provided with core bar impelling sheet chute 7 and Tip protection sheet chute 8, core bar impelling sheet chute 7 is at internal layer, Tip protection sheet chute 8 is at skin, core bar impelling sheet chute 7 lower end is provided with hangs core bar impelling sheet buckle 9, injection tube fixed cover 5 two ends are respectively equipped with injection tube front end buckle 10 and injection tube end buckle 11, spring 12 is provided with between adjustable syringe core rod impelling sheet end and injection tube fixed cover 5, described Tip protection sheet 4 top and bottom are respectively equipped with adjustable syringe core rod impelling sheet stuck point 13 and syringe needle hole 14, described adjustable syringe core rod impelling sheet comprises " L " core bar impelling sheet 15 be located on syringe core rod 3, core bar impelling sheet support 16 is provided with between core bar impelling sheet 15 and core bar impelling sheet chute 7, screw 17 of transposing is provided with between core bar impelling sheet 15 and core bar impelling sheet support 16, described spring 12 two ends are located on core bar impelling sheet support 16 and injection tube fixed cover 5 respectively.
During concrete use; be suspended on core bar impelling sheet buckle 9 after core bar impelling sheet support 16 pull-up; sample size (1 μ L ~ 2 μ L) regulates core bar impelling sheet 15 height per sample; when syringe is placed to injection tube fixed cover 5 after sucking sample; syringe needle 1 inserts 14 li, syringe needle hole on Tip protection sheet 4, and by Tip protection sheet 4 toward pulling down to the end.The utility model is caught with hand, tip alignment injection port of chromatograph, when the syringe needle 1 of syringe inserts injection port of chromatograph, push away down rapidly under setting prerequisite of the present utility model, Tip protection sheet 4 at Tip protection sheet chute 8 relative to up moving, when syringe needle 1 is inserted into the end, the adjustable syringe core rod impelling sheet stuck point 13 that Tip protection sheet 4 upper end is protruded pushes away core bar impelling sheet support 16, core bar impelling sheet support 16 is made to come off from core bar impelling sheet buckle 9, core bar impelling sheet support 16 and core bar impelling sheet 15 move down and push away syringe core rod 3 and complete sample introduction under the pulling force effect of spring 12, finally, extract rapidly injection needle 1, time is more short better.
Claims (2)
1. a gas chromatograph hand sampling assistor, it is characterized in that, it comprises syringe, the syringe needle that syringe is provided with, injection tube and syringe core rod are respectively equipped with " L " shape Tip protection sheet, injection tube fixed cover and adjustable syringe core rod impelling sheet, injector inlet is provided with on front side of described injection tube fixed cover, the syringe fixed cover back side is provided with core bar impelling sheet chute and Tip protection sheet chute, core bar impelling sheet chute is at internal layer, Tip protection sheet chute is at skin, core bar impelling sheet chute lower end is provided with hangs core bar impelling sheet buckle, syringe fixed cover two ends are respectively equipped with injection tube front end buckle and injection tube end buckle, spring is provided with between adjustable syringe core rod impelling sheet end and injection tube fixed cover, described Tip protection sheet top and bottom are respectively equipped with adjustable syringe core rod impelling sheet stuck point and syringe needle hole.
2. gas chromatograph hand sampling assistor according to claim 1, it is characterized in that, described adjustable syringe core rod impelling sheet comprises " L " core bar impelling sheet be located on syringe core rod, core bar impelling sheet support is provided with between core bar impelling sheet and core bar impelling sheet chute, be provided with positioning screw between core bar impelling sheet and core bar impelling sheet support, described both ends of the spring is located on core bar impelling sheet support and injection tube fixed cover respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520287163.2U CN204556580U (en) | 2015-05-07 | 2015-05-07 | Gas chromatograph hand sampling assistor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520287163.2U CN204556580U (en) | 2015-05-07 | 2015-05-07 | Gas chromatograph hand sampling assistor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204556580U true CN204556580U (en) | 2015-08-12 |
Family
ID=53831674
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520287163.2U Withdrawn - After Issue CN204556580U (en) | 2015-05-07 | 2015-05-07 | Gas chromatograph hand sampling assistor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204556580U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104807930A (en) * | 2015-05-07 | 2015-07-29 | 延边大学 | Manual sampling aid for gas chromatograph |
-
2015
- 2015-05-07 CN CN201520287163.2U patent/CN204556580U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104807930A (en) * | 2015-05-07 | 2015-07-29 | 延边大学 | Manual sampling aid for gas chromatograph |
| CN104807930B (en) * | 2015-05-07 | 2016-05-11 | 延边大学 | Gas chromatograph hand sampling assistor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150812 Effective date of abandoning: 20160511 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |