CN212380389U - Automatic quick sample injector - Google Patents
Automatic quick sample injector Download PDFInfo
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- CN212380389U CN212380389U CN202021859779.XU CN202021859779U CN212380389U CN 212380389 U CN212380389 U CN 212380389U CN 202021859779 U CN202021859779 U CN 202021859779U CN 212380389 U CN212380389 U CN 212380389U
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Abstract
The utility model provides an automatic quick sample injector, it includes: a sample loading pipeline, a sample injection pipeline and a valve body; dress appearance pipeline has dress appearance mouth and first interface, sample pipeline has atomizer port and second interface, the valve body set up in between dress appearance pipeline and the sample pipeline, the valve body intercommunication when advancing the appearance dress appearance mouth and first interface and block atomizer port and second interface, intercommunication when dress appearance the atomizer port and second interface just block dress appearance mouth and first interface, the velocity of flow in the dress appearance pipeline is greater than the velocity of flow in the sample pipeline. The utility model discloses an automatic quick sample injector is through setting up dress appearance pipeline and advance kind pipeline to can realize that two pipelines switch the valve body, shorten sample test time, improve whole efficiency, overcome among the prior art because peristaltic pump flow rate is lower, the sampling needle is than longer to the pipeline between the atomizer, has seriously influenced whole efficiency of software testing's problem.
Description
Technical Field
The utility model relates to a mass spectrograph advances kind technical field, especially relates to an automatic fast sampler.
Background
An automatic sample introduction device of an inductively coupled plasma mass spectrometer generally comprises a sample tube, a special sampling needle, a shifting mechanism and the like. The shifting mechanism is used for transferring the sampling needle to the upper part of the sample tube and driving the sampling needle to move up and down, so that the sampling needle can be inserted into the sample tube, and the peristaltic pump is controlled by software of the mass spectrometer to perform sampling detection on the sample.
The inductively coupled plasma mass spectrometer mainly comprises a sample introduction system, an ion source, a mass analyzer, a detector and the like. Wherein the sampling system is an important component of the mass spectrometer and is mainly realized by a peristaltic pump, and the sampling rate plays a crucial role in the overall test efficiency in the mass spectrometer detection process. However, the peristaltic pump has a low flow rate, and a pipeline between the sampling needle and the atomizer is long, so that the cleaning time of the sampling needle and the pipeline and the conveying time of a sample in the middle pipeline account for a large proportion of the whole testing process, and the whole testing efficiency is seriously influenced. Therefore, it is necessary to provide a further solution to the above problems.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an automatic quick sample injector to overcome the not enough that exists among the prior art.
In order to achieve the above object, the present invention provides an automatic rapid sample injector, which includes: a sample loading pipeline, a sample injection pipeline and a valve body;
dress appearance pipeline has dress appearance mouth and first interface, sample pipeline has atomizer port and second interface, the valve body set up in between dress appearance pipeline and the sample pipeline, the valve body intercommunication when advancing the appearance dress appearance mouth and first interface and block atomizer port and second interface, intercommunication when dress appearance the atomizer port and second interface just block dress appearance mouth and first interface, the velocity of flow in the dress appearance pipeline is greater than the velocity of flow in the sample pipeline.
As the utility model discloses an improvement of automatic quick sample injector, the dress appearance pipeline includes: the sampling unit is connected to the sample loading port, and the first fluid conveying unit is connected to the first interface.
As the utility model discloses an improvement of automatic fast sampler, the sampling unit includes: the sampling needle is driven by the shifting mechanism to reciprocate between the sample rack and the sample loading port.
As an improvement of the automatic rapid sample injector of the present invention, the first fluid transfer unit is a vacuum pump.
As the utility model discloses an improvement of automatic fast sampler, the sample introduction pipeline includes: the second fluid conveying unit is connected to the second interface and is connected to the atomization port.
As an improvement of the automatic rapid sample injector of the present invention, the second fluid delivery unit is a peristaltic pump.
As the utility model discloses an improvement of automatic fast sampler, automatic fast sampler still includes the flushing line, flushing line one end is connected to dress appearance pipeline is last.
As the utility model discloses an improvement of automatic quick injector, the flushing line includes: the washing liquid container and the waste liquid pool are respectively connected to the washing pump, and the washing pump is connected to the sample loading pipeline.
Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses an automatic quick sample injector is through setting up dress appearance pipeline and advance kind pipeline to can realize that two pipelines switch the valve body, shorten sample test time, improve whole efficiency, overcome among the prior art because peristaltic pump flow rate is lower, the sampling needle is than longer to the pipeline between the atomizer, has seriously influenced whole efficiency of software testing's problem.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic block diagram of an embodiment of an automatic fast sampler according to the present invention;
FIG. 2 is a schematic diagram of the automatic rapid sample injector of the present invention in a sample loading state;
fig. 3 is a schematic diagram of the sample injection state of the automatic rapid sample injector of the present invention.
Detailed Description
The present invention is described in detail below with reference to various embodiments, but it should be noted that these embodiments are not intended to limit the present invention, and those skilled in the art should be able to make equivalent changes or substitutions in functions, methods, or structures according to the embodiments without departing from the scope of the present invention.
As shown in fig. 1, an embodiment of the present invention provides an automatic rapid sample injector, which includes: a sample loading pipeline 1, a sample injection pipeline 2 and a valve body 3.
The sample loading pipeline 1 is used for loading a sample, and the sample loading pipeline 1 is provided with a sample loading port A and a first port B. In one embodiment, the sample loading pipeline 1 comprises: a sampling unit 11 and a first fluid delivery unit 12. Wherein the sampling unit 11 is connected to the sample loading port a, and the first fluid conveying unit 12 is connected to the first interface B.
Further, the sampling unit 11 includes: the sampling device comprises a sampling needle 111, a sample rack 112 and a shifting mechanism 113, wherein the sampling needle 111 is driven by the shifting mechanism 113 to reciprocate between the sample rack 112 and a sample loading port A. In this way, the sample in the sample rack 112 can be fed to the sample loading port a by the sampling needle 111, and the sample loading can be realized. The displacement mechanism 113 may be a displacement electric drive structure or the like adapted to drive the sampling needle 111. The first fluid transfer unit 12 is a vacuum pump.
The sample introduction pipeline 2 is used for further sending the filled sample into a mass spectrometer, and the sample introduction pipeline 2 is provided with an atomization port C and a second interface D. In one embodiment, the sample inlet line 2 comprises: a second fluid delivery unit 21 and a nebulizer 22, wherein the second fluid delivery unit 21 is connected to the second port D, and the nebulization port C. Wherein the second fluid conveying unit 21 is a peristaltic pump.
The valve body 3 is used for switching the sample loading pipeline 1 and the sample injection pipeline 2 to relatively inject a sample and improve the sample loading efficiency. Specifically, valve body 3 set up in between dress appearance pipeline 1 and the appearance pipeline 2, valve body 3 intercommunication when advancing the appearance dress appearance mouth A and first interface B and block atomization mouth C and second interface D, intercommunication when the dress appearance atomization mouth C and second interface D and block dress appearance mouth A and first interface B, the velocity of flow in the dress appearance pipeline 1 is greater than the velocity of flow in the appearance pipeline 2.
In addition, in order to guarantee the cleanness of dress appearance pipeline 1 and appearance pipeline 2, the autosampler of this embodiment still includes washing pipeline 4, washing pipeline 4 one end is connected to dress appearance pipeline 1 is last. In one embodiment, the flushing line 4 comprises: the sample loading device comprises a flushing pump 41, a cleaning liquid container 42 and a waste liquid pool 43, wherein the cleaning liquid container 42 and the waste liquid pool 43 are respectively connected to the flushing pump 41, and the flushing pump 41 is connected to the sample loading pipeline 1. In this way, the cleaning liquid container 42 is pumped by the washing pump 41 to the sample loading pipeline 1 and the sample injection pipeline 2 for cleaning, and then flows back to the waste liquid pool 43. The cleaning liquid container 42 may be a cleaning tank or the like.
The sample loading and sampling process of the automatic rapid sample injector of this embodiment will be described below by taking the first fluid conveying unit 12 as a vacuum pump and the second fluid conveying unit 21 as a peristaltic pump as an example.
As shown in fig. 2 and 3, the sampling needle 111 is connected to the valve body 3, the valve body 3 is provided with a sample ring, and the valve body 3 is simultaneously connected with a vacuum pump, a peristaltic pump on a mass spectrometer and an atomizer 22;
the valve body 3 has two states, namely a sample loading state and a sample injection state, wherein the sample ring is connected with the sampling needle 111 and the vacuum pump in the sample loading state, and the sample ring is connected with the atomizer 22 and the peristaltic pump in the sample injection state;
when a sample is loaded, the valve body 3 is placed in a sample loading state, the sample is pumped into the sample ring through the vacuum pump, and the sample loading time can be shortened to several seconds as the flow rate of the vacuum pump is greatly higher than that of the peristaltic pump;
when sending a kind, after the sample ring filled with the sample, valve body 3 switched to the sample state, directly sent the sample in the sample ring to atomizer 22 through the peristaltic pump, because the sample ring directly links to each other with atomizer 22, shortened the time that the sample arrived the atomizer greatly.
During cleaning, the sampling needle 111 sucks cleaning liquid through a vacuum pump for cleaning, and the step is performed synchronously with sample injection, so that the cleaning time is not increased.
To sum up, the utility model discloses an automatic quick sample injector is through setting up dress appearance pipeline and advance kind pipeline to can realize that two pipelines switch the valve body, shorten sample test time, improve whole efficiency, overcome among the prior art because peristaltic pump flow rate is lower, the sampling needle is than longer to the pipeline between the atomizer, has seriously influenced whole efficiency of software testing's problem.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (8)
1. An auto fast sampler, comprising: a sample loading pipeline, a sample injection pipeline and a valve body;
dress appearance pipeline has dress appearance mouth and first interface, sample pipeline has atomizer port and second interface, the valve body set up in between dress appearance pipeline and the sample pipeline, the valve body intercommunication when advancing the appearance dress appearance mouth and first interface and block atomizer port and second interface, intercommunication when dress appearance the atomizer port and second interface just block dress appearance mouth and first interface, the velocity of flow in the dress appearance pipeline is greater than the velocity of flow in the sample pipeline.
2. The autosampler of claim 1, wherein the loading line comprises: the sampling unit is connected to the sample loading port, and the first fluid conveying unit is connected to the first interface.
3. The auto fast sampler of claim 2, wherein the sampling unit comprises: the sampling needle is driven by the shifting mechanism to reciprocate between the sample rack and the sample loading port.
4. The automated rapid injector of claim 2, in which the first fluid delivery unit is a vacuum pump.
5. The autosampler of claim 1, wherein the sample line comprises: the second fluid conveying unit is connected to the second interface and is connected to the atomization port.
6. The automated rapid injector of claim 5, in which the second fluid delivery unit is a peristaltic pump.
7. The autosampler of claim 1, further comprising a wash line, one end of said wash line being connected to said loading line.
8. The autosampler of claim 7, wherein the flush line comprises: the washing liquid container and the waste liquid pool are respectively connected to the washing pump, and the washing pump is connected to the sample loading pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021859779.XU CN212380389U (en) | 2020-08-31 | 2020-08-31 | Automatic quick sample injector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021859779.XU CN212380389U (en) | 2020-08-31 | 2020-08-31 | Automatic quick sample injector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212380389U true CN212380389U (en) | 2021-01-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202021859779.XU Active CN212380389U (en) | 2020-08-31 | 2020-08-31 | Automatic quick sample injector |
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| CN (1) | CN212380389U (en) |
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- 2020-08-31 CN CN202021859779.XU patent/CN212380389U/en active Active
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Inventor after: Zheng Yi Inventor after: Pei Bing Inventor after: Shi Haigang Inventor after: Zou Shuangshuang Inventor before: Zheng Yi Inventor before: Shi Haigang Inventor before: Zou Shuangshuang |