CN203232012U - Thin-layer chromatography spotting needle - Google Patents
Thin-layer chromatography spotting needle Download PDFInfo
- Publication number
- CN203232012U CN203232012U CN 201320276138 CN201320276138U CN203232012U CN 203232012 U CN203232012 U CN 203232012U CN 201320276138 CN201320276138 CN 201320276138 CN 201320276138 U CN201320276138 U CN 201320276138U CN 203232012 U CN203232012 U CN 203232012U
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- China
- Prior art keywords
- needle
- thin
- spotting
- pipe box
- layer chromatography
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Abstract
The utility model discloses a thin-layer chromatography spotting needle. The spotting needle comprises a needle tube and a needle head, wherein a fixed tube sleeve is arranged at one end, close to the needle head, of the needle tube; a movable tube sleeve is arranged at the other end of the needle tube; the movable tube sleeve is matched with the needle tube in a sliding manner; the adjacent two ends of the movable tube sleeve and the fixed tube sleeve are connected by a plurality of springs. According to the thin-layer chromatography spotting needle, a structural way of connecting the movable tube sleeve with the fixed tube sleeve by the springs is adopted, so that the pressure of the needle head to the thin-layer plate is easier to control; a problem that the coated object on the thin-layer plate is punctured due to extremely large spotting force or samples cannot be completely transited on the thin-layer plate due to extremely small spotting force is solved, so that the spotting is more accurate, and therefore, the accuracy of experimental results is ensured.
Description
Technical field
The utility model relates to a kind of chemical experimental instrument, particularly a kind of spotting needle.
Background technology
Thin-layered chromatography is a kind of important experimental technique in chemistry, the field of medicaments.When using thin-layered chromatography to do the sxemiquantitative experimental analysis, generally adopt spotting needle to carry out point sample, during practical application, usually adopt microsyringe, as the sample introduction needle (as shown in Figure 1) of high performance liquid chromatography.
When adopting this sample introduction needle to carry out point sample, need syringe needle Contact Thin laminate.In contact process, excessive because of the point sample dynamics easily, the coating thing on the thin layer plate is punctured, the sample on causing a little is inhomogeneous even come off with the coating thing that is punctured.The point sample dynamics is too small owing to be afraid of to puncture the coating thing, then makes syringe needle Contact Thin laminate well easily, causes the sample on the syringe needle not carry out the transition on the thin layer plate fully.The shake of hand in the point sample process, the easier instability that causes the point sample dynamics makes point sample defective.The quality that these have all seriously influenced point sample finally causes experimental result inaccurate.
The utility model content
Technical problem to be solved in the utility model is to provide a kind of can avoid that the shake of improper or hand causes the underproof spotting needle of point sample because of the point sample dynamics
To achieve these goals, the technical solution adopted in the utility model is:
A kind of thin-layer chromatography spotting needle, comprise needle tubing and syringe needle, described needle tubing is provided with fixedly pipe box near an end of syringe needle, the other end of described needle tubing is provided with movable pipe box, described movable pipe box and needle tubing are slidingly matched, and described movable pipe box is connected by some springs with the two ends that fixedly pipe box is adjacent.
As preferred version of the present utility model, the quantity of described spring is 4.
As preferred version of the present utility model, described fixedly pipe box, movable pipe box, spring are made by stainless steel.
A kind of thin-layer chromatography spotting needle of the utility model, employing is by spring connection activity pipe box and the fixing frame mode of pipe box, make syringe needle to the pressure of thin layer plate easy-regulating more, having solved the coating thing that the point sample dynamics crosses on ambassador's thin layer plate is punctured, or the too small sample that makes of point sample dynamics can not carry out the transition to problem on the thin layer plate fully, make point sample more accurate, thereby guaranteed the accuracy of experimental result.A kind of thin-layer chromatography spotting needle of the utility model has avoided point sample improper because of the point sample dynamics or that the hand shake causes defective effectively.
Description of drawings
Fig. 1 is the utility model prior art constructions synoptic diagram.
Fig. 2 is the structural representation of a kind of thin-layer chromatography spotting needle of the utility model.
Mark among the figure: 1 is needle tubing, and 2 is syringe needle, and 3 are fixing pipe box, and 4 is movable pipe box, and 5 is spring.
Embodiment
Below in conjunction with accompanying drawing, the utility model is done detailed explanation.
Disclosed all features in this instructions, or the step in disclosed all methods or the process except mutually exclusive feature and/or step, all can make up by any way.
Disclosed arbitrary feature in this instructions is unless special narration all can be replaced by other equivalences or the alternative features with similar purpose.That is, unless special narration, each feature is an example in a series of equivalences or the similar characteristics.
A kind of thin-layer chromatography spotting needle of the utility model as shown in Figure 2, comprise needle tubing 1 and syringe needle 2, described needle tubing 1 is provided with fixedly pipe box 3 near an end of syringe needle 2, the other end of described needle tubing is provided with movable pipe box 4, described movable pipe box 4 is slidingly matched with needle tubing 1, and described movable pipe box 4 and fixing pipe box 3 adjacent two ends are connected by some springs 5.
As shown in Figure 2 in a kind of thin-layer chromatography spotting needle of the utility model, the quantity of spring 5 is designed to 4, with the suitability of assurance elastic force size and the stability of elastic force action direction, fixedly pipe box 3, movable pipe box 4, spring 5 are made by stainless steel, the stainless steel stable performance, easy cleaning is difficult for contaminated samples.
A kind of thin-layer chromatography spotting needle of the utility model as shown in Figure 2, the movable pipe box 4 of hand-held spotting needle carries out point sample during use, when the syringe needle 2 Contact Thin laminates of spotting needle, it is that elastic force by spring 5 determines that this elastic force slowly increases with the deformation of spring 5 that syringe needle 2 acts on pressure on the thin layer plate.The acting force of hand does not act directly on the syringe needle, but makes spring deformation, because the elastic force of spring is continuous changing from small to big, be easy to regulation and control so syringe needle becomes to the pressure of thin layer plate, and then the quality of point sample can be guaranteed also.
The above only is preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of within spirit of the present utility model and principle, doing, be equal to and replace and improvement etc., all should be included within the protection domain of the present utility model.
Claims (3)
1. thin-layer chromatography spotting needle, comprise needle tubing (1) and syringe needle (2), it is characterized in that: described needle tubing (1) is provided with fixedly pipe box (3) near an end of syringe needle (2), the other end of described needle tubing is provided with movable pipe box (4), described movable pipe box (4) is slidingly matched with needle tubing (1), and described movable pipe box (4) is connected by some springs (5) with the two ends that fixedly pipe box (3) is adjacent.
2. thin-layer chromatography spotting needle according to claim 1, it is characterized in that: the quantity of described spring (5) is 4.
3. thin-layer chromatography spotting needle according to claim 1, it is characterized in that: described fixedly pipe box (3), movable pipe box (4), spring (5) are made by stainless steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320276138 CN203232012U (en) | 2013-05-20 | 2013-05-20 | Thin-layer chromatography spotting needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320276138 CN203232012U (en) | 2013-05-20 | 2013-05-20 | Thin-layer chromatography spotting needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203232012U true CN203232012U (en) | 2013-10-09 |
Family
ID=49288132
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320276138 Expired - Fee Related CN203232012U (en) | 2013-05-20 | 2013-05-20 | Thin-layer chromatography spotting needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203232012U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113406262A (en) * | 2021-05-28 | 2021-09-17 | 华南理工大学 | Sample application pen for preparing thin-layer chromatography and application thereof |
-
2013
- 2013-05-20 CN CN 201320276138 patent/CN203232012U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113406262A (en) * | 2021-05-28 | 2021-09-17 | 华南理工大学 | Sample application pen for preparing thin-layer chromatography and application thereof |
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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: 20131009 Termination date: 20160520 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |