CN204008238U - A kind of gas collector - Google Patents

A kind of gas collector Download PDF

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Publication number
CN204008238U
CN204008238U CN201420412347.2U CN201420412347U CN204008238U CN 204008238 U CN204008238 U CN 204008238U CN 201420412347 U CN201420412347 U CN 201420412347U CN 204008238 U CN204008238 U CN 204008238U
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CN
China
Prior art keywords
vacuum bag
gas
seal closure
gas collector
plant tissue
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201420412347.2U
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Chinese (zh)
Inventor
周明
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Beijing Academy of Agriculture and Forestry Sciences
Original Assignee
Beijing Academy of Agriculture and Forestry Sciences
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Filing date
Publication date
Application filed by Beijing Academy of Agriculture and Forestry Sciences filed Critical Beijing Academy of Agriculture and Forestry Sciences
Priority to CN201420412347.2U priority Critical patent/CN204008238U/en
Application granted granted Critical
Publication of CN204008238U publication Critical patent/CN204008238U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model relates to plant tissue test technical field, is specifically related to a kind of gas collector.This gas collector comprises vacuum bag, seal closure and aspirator, in described vacuum bag, be provided with the space for accommodating plant tissue, one end at described vacuum bag is sealed and installed with seal closure, described seal closure is provided with the sealing end communicating with vacuum bag, described aspirator is installed on seal closure, for vacuum bag is vacuumized; When the gaseous compound that uses quantitative analysis by gas chromatography plant tissue to discharge, use this gas collector can collect quickly and easily the gas sample that any plant tissue discharges, can realize the vacant volume in arbitrarily quantitative this vacuum bag, and this device remains good impermeability in sampling with in collecting gas sample process, can use single sample to realize and collect the object of measuring.

Description

A kind of gas collector
Technical field
The utility model relates to plant tissue test technical field, relates in particular to a kind of gas collector for vapor-phase chromatography.
Background technology
At present, when the gaseous compound that uses quantitative analysis by gas chromatography plant tissue to discharge, need to collect in advance plant and stop the combination gas sample discharging, then will after gas sample injection gas chromatography, could measure specific compound content.
The universal method of existing collection gas sample is plant tissue to be put into the airtight vessel of glass of a fixed volume, and as shown in Figure 1, the 4 use plugs sealings of this glassware, at rubber stopper punching and insert two glass tubes 5, are communicated with hose 6 between glass tube 5.During sampling, with microsyringe, insert in hose 6 and draw certain volume gas sample for gas chromatographic analysis.
But the method that this tradition is collected gas sample has four shortcomings:
The first, while carrying out quantitative test, need drainage to measure vacant volume in vessel, complex operation, easily causes error;
The second, these vessel itself are heavy, are difficult for carrying, carry inconvenience;
The 3rd, when collecting gas sample and measure, the plant tissue effect that can not be damaged, and vacant volume in vessel is determined by tissue space, therefore when gap between mensuration tissue is less compared with compounds content large and that discharge, is difficult to collect enough compounds and analyzes mensuration;
The 4th, to some organization need, use a plurality of tissue samples for collecting gas sample, caused sample waste.
Therefore, for above deficiency, need a kind ofly can to collect quickly and easily the gas sample that any plant tissue discharges, can be arbitrarily the quantitative vacant volume in locking device, and collect by using single sample to complete the gas collector of measuring.
Utility model content
(1) technical matters that will solve
The technical problems to be solved in the utility model has been to provide a kind of gas collector, make it possible to collect quickly and easily the gas sample that any plant tissue discharges, can be arbitrarily the quantitative vacant volume in locking device, and can measure by using single sample to realize to collect.
(2) technical scheme
In order to solve the problems of the technologies described above, the utility model provides a kind of gas collector, this gas collector comprises vacuum bag, seal closure and aspirator, in described vacuum bag, be provided with the space for accommodating plant tissue, one end at described vacuum bag is sealed and installed with seal closure, described seal closure is provided with the sealing end communicating with vacuum bag, and described aspirator is installed on seal closure, for vacuum bag is vacuumized.
Wherein, described seal closure comprises lid, connecting pipe, glue head, and described lid is seal-installed on the interface of described vacuum bag, and one end of described connecting pipe communicates with vacuum bag through lid, and the other end is sealedly connected with glue head.
Wherein, described lid is provided with through hole, on described through hole, is sealed and installed with plug.
Wherein, described vacuum bag is transfusion flexible bag, between described lid and the interface of transfusion flexible bag for removably connecting.
Wherein, described aspirator is minipump.
Wherein, also comprise syringe, the dispensing end of described syringe inserts described sealing end, for quantitatively input gas in described vacuum bag.
Wherein, also comprise microsyringe, the sampling end of described microsyringe inserts described sealing end, for gathering the gas sample in described vacuum bag.
(3) beneficial effect
Technique scheme of the present utility model has following beneficial effect: in the vacuum bag of the utility model gas collector, be provided with the space for accommodating plant tissue, one end at vacuum bag is sealed and installed with seal closure, seal closure is provided with the sealing end communicating with vacuum bag, by sealing end, can in vacuum bag, input quantitative gas, aspirator is installed on seal closure, for vacuum bag is vacuumized; When the gaseous compound that uses quantitative analysis by gas chromatography plant tissue to discharge, use this gas collector can collect quickly and easily the gas sample that any plant tissue discharges, can realize the vacant volume in arbitrarily quantitative this vacuum bag, and this device remains good impermeability in sampling with in collecting gas sample process, can use single sample to realize and collect the object of measuring.
Accompanying drawing explanation
Fig. 1 is the structural representation that prior art figure collects gas sample;
Fig. 2 is the structural representation of the utility model gas collector.
Wherein, 1: vacuum bag; 2: seal closure; 3: aspirator; 4: glassware; 5: glass tube; 6: hose; 21: plug; 22: connecting pipe; 23: glue head; 24: through hole.
Embodiment
Below in conjunction with drawings and Examples, embodiment of the present utility model is described in further detail.Following examples are used for illustrating the utility model, but can not be used for limiting scope of the present utility model.
In description of the present utility model, except as otherwise noted, the implication of " a plurality of " is two or more; Term " on ", orientation or the position relationship of the indication such as D score, " left side ", " right side ", " interior ", " outward ", " front end ", " rear end ", " head ", " afterbody " be based on orientation shown in the drawings or position relationship, only the utility model and simplified characterization for convenience of description, rather than indicate or imply that the device of indication or element must have specific orientation, with specific orientation, construct and operation, therefore can not be interpreted as restriction of the present utility model.In addition, term " first ", " second ", " the 3rd " etc. are only for describing object, and can not be interpreted as indication or hint relative importance.
In description of the present utility model, it should be noted that, unless otherwise clearly defined and limited, term " is connected ", " connection " should be interpreted broadly, and for example, can be to be fixedly connected with, and can be also to removably connect, or connects integratedly; Can be mechanical connection, can be to be also electrically connected to; Can be to be directly connected, also can indirectly be connected by intermediary.For the ordinary skill in the art, can concrete condition understand the concrete meaning of above-mentioned term in the utility model.
As shown in Figure 2, the present embodiment gas collector comprises vacuum bag 1, seal closure 2 and aspirator 3, in vacuum bag 1, be provided with the space for accommodating plant tissue, in one end of vacuum bag 1, be sealed and installed with seal closure 2, seal closure 2 is provided with the sealing end communicating with vacuum bag 1, can be to the interior quantitative input gas of vacuum bag 1 by sealing end, aspirator 3 is installed on seal closure 2, for vacuum bag 1 is vacuumized.
When the gaseous compound (as ethene) of quantitative analysis by gas chromatography plant tissue release is used in inherence, laboratory, by this gas collector, can collect quickly and easily the gas sample that any plant tissue discharges.And this gas collector remains good impermeability in sampling with in collecting gas sample process, can use single sample to realize and collect the object of measuring.
Vacuum bag 1 wherein can be the transfusion flexible bag of transparent sealing, and transfusion flexible bag is good leak tightness not only, and draws materials conveniently.
In addition, air locking that vacuum bag 1 also can other vacuum-pumpings, as diaphragm seal, sealed plastic bag, the size of vacuum bag 1 is depending on the shape of plant tissue, size and the accommodation of carrying out.
The present embodiment vacuum bag 1 is preferably used transfusion flexible bag, at the interface of transfusion flexible bag, is sealed and installed with seal closure 2.
Seal closure 2 is provided with sealing end, and sealing end guarantees not have Leakage Gas in injecting gas and sampling process.
In order to reach this object, seal closure 2 is provided with through hole 24, is sealed and installed with plug 21 on through hole 24, and through hole 24 is combined into sealing end with plug 21, can use syringe to insert plug 21, to the gas of squeezing into fixed volume in transfusion flexible bag, carries out quantitative sealed.
In order to reach, save raw-material object, seal closure 2 can directly be used the vinyl cover on transfusion flexible bag, be specially: seal closure 2 comprises lid, connecting pipe 22, glue head 23, guaranteeing under bubble-tight prerequisite, between lid and vacuum bag 1 interface for removably connecting, such as being threaded, socket, clamping etc., with for convenience detach be replaced by object.Connecting pipe 22 is located on lid, and its one end communicates with vacuum bag 1, and the other end is sealedly connected with glue head 23, to guarantee the impermeability of vacuum bag 1.In actual application, the centrifuge tube after connecting pipe 22 can be and gets through, can select 1.5ml or 2ml centrifuge tube.
Lid is provided with through hole 24, on through hole 24, sealing-plug is installed, and through hole and sealing-plug form sealing end, and certainly, connecting pipe 22 also can be used as sealing end, is sealed and installed with valve or seal on connecting pipe 22, also can be used for input and the sampling of gas.
Be worth explanation, the form of seal closure 2 is also not limited to ad hoc structure, every can and vacuum bag 1 between be the protection domain of the present embodiment for the device being tightly connected.
The present embodiment is easy to make, take transfusion flexible bag as example explanation: the head of clip transfusion flexible bag, choose 1.5ml or 2ml centrifuge tube, and after centrifuge tube is got through, its one end is communicated with transfusion flexible bag through vinyl cover, and the other end, by 23 sealings of glue head, can complete making.Before use, transfusion flexible bag can be squeezed into gas sealing and be placed on built for in-water survey and whether leak gas.Correspondingly, when collecting gas sample, be further to guarantee impermeability, can spread glycerine at sealing end, with clip, clip and insert in water.
The aspirator 3 of this gas collector can be minipump.Minipump is arranged on seal closure 2, can control by button.On seal closure 2, connect minipump, by minipump, can continue to bleed to vacuum bag 1, poor at bleeding point place and ambient atmosphere mineralization pressure, under the effect of pressure differential, gas is pressed and sucked pump chamber, then discharge from exhausr port, realize vacuum bag 1 is vacuumized.This minipump can not pollute actuating medium, and has the advantages such as volume is small and exquisite, noise is low, non-maintaining.
Be worth explanation, aspirator 3, as the device vacuumizing, is also thought other structures, for example: what through technological improvement, form bleeds, inflates dual-purpose pumping equipment, pumping equipment can be arranged on seal closure 2, also can adopt and be external on through hole 24, adopts electronic or manually all can.
In addition, this gas collector also comprises syringe, and the dispensing end of syringe inserts in sealing end (plug 21), be used for to the interior quantitative input gas of vacuum bag 1, realize the vacant volume in arbitrarily quantitative vacuum bag 1, the gas of input is generally air, for plant tissue provides mensuration environment.
Simultaneously, this gas collector also comprises microsyringe, when gas Chromatographic Determination is analyzed, by microsyringe, inserts sealing end (plug 21), for gathering the gas sample in vacuum bag 1 with it.
This gas collector is specifically measured process: the first step, and treat and collect the plant tissue (need carry out specific release compound analysis) of gas sample M weighs; Second step, is placed in the plant tissue after weighing in vacuum bag 1, immediately sealing; The 3rd step, vacuumizes by 3 pairs of vacuum bags 1 of aspirator; The 4th step, with the gas V of syringe injection fixed volume 1, in certain time interval T, with microsyringe, insert plug 21 sampling certain volume V 2, for gas Chromatographic Determination analysis.Supposing to measure gas sample concentration is Q, and the amount that the plant tissue measured discharges compound is QV 1/ (MTV 2).
In sum, in the vacuum bag of the utility model gas collector, be provided with the space for accommodating plant tissue, one end at vacuum bag is sealed and installed with seal closure, seal closure is provided with the sealing end communicating with vacuum bag, by sealing end, can in vacuum bag, input quantitative gas, aspirator is installed on seal closure, for vacuum bag is vacuumized; When the gaseous compound that uses quantitative analysis by gas chromatography plant tissue to discharge, use this gas collector can collect quickly and easily the gas sample that any plant tissue discharges, can realize the vacant volume in arbitrarily quantitative this vacuum bag, and this device remains good impermeability in sampling with in collecting gas sample process, can use single sample to realize and collect the object of measuring.
Embodiment of the present utility model provides for example with for the purpose of describing, and is not exhaustively or by the utility model to be limited to disclosed form.Many modifications and variations are apparent for the ordinary skill in the art.Selecting and describing embodiment is for better explanation principle of the present utility model and practical application, thereby and makes those of ordinary skill in the art can understand the various embodiment with various modifications that the utility model design is suitable for special-purpose.

Claims (7)

1. a gas collector, it is characterized in that, comprise vacuum bag (1), seal closure (2) and aspirator (3), described vacuum bag is provided with the space for accommodating plant tissue in (1), in one end of described vacuum bag (1), be sealed and installed with seal closure (2), described seal closure (2) is provided with the sealing end communicating with vacuum bag (1), it is upper that described aspirator (3) is installed on seal closure (2), for vacuum bag (1) is vacuumized.
2. gas collector according to claim 1, it is characterized in that, described seal closure (2) comprises lid, connecting pipe (22), glue head (23), described lid is seal-installed on the interface of described vacuum bag (1), one end of described connecting pipe (22) communicates with vacuum bag (1) through lid, and the other end is sealedly connected with glue head (23).
3. gas collector according to claim 2, is characterized in that, described lid is provided with through hole (24), is sealed and installed with plug (21) on described through hole (24).
4. gas collector according to claim 3, is characterized in that, described vacuum bag (1) is transfusion flexible bag, between described lid and the interface of transfusion flexible bag for removably connecting.
5. gas collector according to claim 4, is characterized in that, described aspirator (3) is minipump.
6. according to the gas collector described in any one in claim 1-5, it is characterized in that, also comprise syringe, the dispensing end of described syringe inserts described sealing end, for quantitatively input gas in described vacuum bag (1).
7. according to the gas collector described in any one in claim 1-5, it is characterized in that, also comprise microsyringe, the sampling end of described microsyringe inserts described sealing end, for gathering the gas sample in described vacuum bag (1).
CN201420412347.2U 2014-07-24 2014-07-24 A kind of gas collector Expired - Fee Related CN204008238U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420412347.2U CN204008238U (en) 2014-07-24 2014-07-24 A kind of gas collector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420412347.2U CN204008238U (en) 2014-07-24 2014-07-24 A kind of gas collector

Publications (1)

Publication Number Publication Date
CN204008238U true CN204008238U (en) 2014-12-10

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Country Status (1)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106248874A (en) * 2016-07-22 2016-12-21 北京林业大学 Isotope13c(13cO2) integration unit of labelling bough bar and labeling method
CN107976344A (en) * 2017-12-08 2018-05-01 浙江工业大学之江学院 A kind of environment-friendly type pollutes air sampling device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106248874A (en) * 2016-07-22 2016-12-21 北京林业大学 Isotope13c(13cO2) integration unit of labelling bough bar and labeling method
CN107976344A (en) * 2017-12-08 2018-05-01 浙江工业大学之江学院 A kind of environment-friendly type pollutes air sampling device

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C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20141210

Termination date: 20170724