CN205027710U - Trace injector proportioning device - Google Patents
Trace injector proportioning device Download PDFInfo
- Publication number
- CN205027710U CN205027710U CN201520725366.5U CN201520725366U CN205027710U CN 205027710 U CN205027710 U CN 205027710U CN 201520725366 U CN201520725366 U CN 201520725366U CN 205027710 U CN205027710 U CN 205027710U
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- sleeve pipe
- connecting rod
- pin
- length
- microsyringe
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Abstract
The utility model provides a trace injector proportioning device, locates the sleeve pipe I that micro - injector advances kind outside of tubes side including the cover, sleeve pipe I swing joint connecting rod, and the length A that the connecting rod was arranged in between sleeve pipe I and the piston head is adjustable, and length A can be fixed by retention device, and the pin is connected to the connecting rod other end, and the pin is rotatable with the piston head contact or separately when length A is fixed. The utility model discloses a kind volume is advanced to the ration fast, even when the illuminance of laboratory light is not easy, still can be quantitative fast, and advance appearance repeatability and accuracy simultaneously and improve greatly.
Description
Technical field
The utility model belongs to surveying instrument utility appliance technology, is specifically related to a kind of microsyringe proportioning device.
Background technology
Liquid phase, gas phase that current laboratory is conventional or be applied to otherwise microsyringe and generally need artificial determined volume, not only consuming time longer, there is certain error, especially when repeatedly sample introduction, efficiency is lower, sample introduction poor repeatability simultaneously.
Summary of the invention
The purpose of this utility model is just to provide a kind of microsyringe proportioning device for solving the deficiencies in the prior art.
The purpose of this utility model realizes with following technical proposals.
A kind of microsyringe proportioning device, comprise the sleeve pipe I be sheathed on outside microsyringe sample feeding pipe, sleeve pipe I is flexibly connected connecting rod, the length A that connecting rod is placed between sleeve pipe I and piston head is adjustable, and length A can be fixed by retention device, the connecting rod other end connects pin, and when length A fixes, pin is rotatable contacts with piston head or separates.
Described sleeve pipe I establishes the through hole passed for connecting rod, and sleeve pipe I establishes one end the threaded hole with through hole UNICOM, and connecting rod is flexibly connected with pin.
Establish sleeve pipe II outside described connecting rod, sleeve pipe I and sleeve pipe II establishes the through hole passed for connecting rod, and sleeve pipe II establishes the threaded hole with through hole UNICOM.
Described connecting rod and pin are stainless steel bar.
The utility model can fast quantification sampling volume, even if when the illumination of laboratory light is not very good, still can fast quantification, and sample introduction repeatability and accuracy improve greatly simultaneously.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is another kind of structural representation of the present utility model.
Embodiment
A kind of microsyringe proportioning device, as depicted in figs. 1 and 2, comprise sleeve pipe I1 that is sheathed and that be fixed on outside microsyringe sample feeding pipe 6, sleeve pipe I1 is flexibly connected connecting rod 8, the length A that connecting rod 8 is placed between sleeve pipe I1 and piston head 2 is adjustable, and length A can be fixed by retention device, connecting rod 8 other end connects pin 5, and when length A fixes, pin 5 is rotatable contacts with piston head 2 or separates.Described connecting rod and pin are preferably stainless steel bar.
Can the position of positioning piston head 2 by position length A, rotate pin 5 and can make the smooth mobile imbitition of piston head 2 and rinse microsyringe, further rotation pin 5 can stop piston head arrive length A time movement further, thus can the volume of fast quantification solution in microsyringe, improve sample introduction repeatability and dosing accuracy.
Further describe structure of the present utility model and the course of work below.
As shown in Figure 1, described sleeve pipe I1 establishes the through hole passed for connecting rod, and sleeve pipe I1 establishes one end the threaded hole with through hole UNICOM, and connecting rod 8 is flexibly connected with pin 5.
The course of work
1. first determine sampling volume, be then fixed on the position of sleeve pipe I1 according to sampling volume determination connecting rod 8, be fixed on the movement of limiting rod 8 in threaded hole with screw.
2. rinse pin: rotate pin 5, make it not stop the motion of piston, carries out rinse by extracting solution to microsyringe;
3. solution is quantitative: extract appropriate solution (1 μ about L more than sample size), promotes piston head 2, discharges bubble by the mode of upwards discharging liquid; Rotate pin 5, make it just stop during the motion of piston head 2 and stop promoting piston head 2.
4. sample introduction: rotate pin 5, make it not stop the motion of piston, then by sample introduction needle 7 sample introduction in gas phase or liquid chromatograph.
Another kind of structure of the present utility model as shown in Figure 2, sleeve pipe II4 is established outside connecting rod 8 between described sleeve pipe I and piston head 2, sleeve pipe I1 and sleeve pipe II4 establishes the through hole passed for connecting rod 5, sleeve pipe II establishes the threaded hole with through hole UNICOM, pin is fixedly connected with connecting rod, and be the angle of 45 ~ 135 °, be preferably 90 °.
The course of work
1. first determine sampling volume, be then fixed on the position of connecting rod 5 according to sampling volume determination sleeve pipe II4; Be fixed in threaded hole with screw, limiting rod 8 moves to sleeve pipe I further;
2. rinse pin: pivot link 8, makes pin 5 not stop the motion of piston, carries out rinse by extracting solution to microsyringe;
3. solution is quantitative: extract appropriate solution (1 μ about L more than sample size), promotes piston head, discharges bubble by the mode of upwards discharging liquid; Pivot link 8, makes pin 5 just stop during the motion of piston head and stops promoting piston head.
4. sample introduction: pivot link 8, makes pin 5 not stop the motion of piston, then sample introduction in gas phase or liquid chromatograph.
Claims (4)
1. a microsyringe proportioning device, it is characterized in that: comprise the sleeve pipe I be sheathed on outside microsyringe sample feeding pipe, sleeve pipe I is flexibly connected connecting rod, the length A that connecting rod is placed between sleeve pipe I and piston head is adjustable, and length A can be fixed by retention device, the connecting rod other end connects pin, and when length A fixes, pin is rotatable contacts with piston head or separates.
2. microsyringe proportioning device as claimed in claim 1, is characterized in that: described sleeve pipe I establishes the through hole passed for connecting rod, and sleeve pipe I establishes one end the threaded hole with through hole UNICOM, and connecting rod is flexibly connected with pin.
3. microsyringe proportioning device as claimed in claim 1, is characterized in that: establish sleeve pipe II outside described connecting rod, and sleeve pipe I and sleeve pipe II establishes the through hole passed for connecting rod, and sleeve pipe II establishes the threaded hole with through hole UNICOM.
4. microsyringe proportioning device as claimed in claim 1, is characterized in that: described connecting rod and pin are stainless steel bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520725366.5U CN205027710U (en) | 2015-09-18 | 2015-09-18 | Trace injector proportioning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520725366.5U CN205027710U (en) | 2015-09-18 | 2015-09-18 | Trace injector proportioning device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205027710U true CN205027710U (en) | 2016-02-10 |
Family
ID=55260233
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520725366.5U Active CN205027710U (en) | 2015-09-18 | 2015-09-18 | Trace injector proportioning device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205027710U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110211863A (en) * | 2019-06-14 | 2019-09-06 | 清华大学深圳研究生院 | A kind of micro liquid sample amounts sampling device and method |
-
2015
- 2015-09-18 CN CN201520725366.5U patent/CN205027710U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110211863A (en) * | 2019-06-14 | 2019-09-06 | 清华大学深圳研究生院 | A kind of micro liquid sample amounts sampling device and method |
| CN110211863B (en) * | 2019-06-14 | 2021-04-23 | 清华大学深圳研究生院 | Quantitative sample introduction device and method for trace liquid sample |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |