CN206497089U - A kind of installation and protection instrument in gas chromatograph for capillary chromatograph - Google Patents
A kind of installation and protection instrument in gas chromatograph for capillary chromatograph Download PDFInfo
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- CN206497089U CN206497089U CN201621486608.0U CN201621486608U CN206497089U CN 206497089 U CN206497089 U CN 206497089U CN 201621486608 U CN201621486608 U CN 201621486608U CN 206497089 U CN206497089 U CN 206497089U
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Abstract
The utility model discloses a kind of installation in gas chromatograph for capillary chromatograph and protection instrument, complex protection column jecket（1）The mass spectrum post mounting assembly of connection is provided with mass spectrum post nut（2）, complex protection column jecket（1）It is inserted into mass spectrum post nut（2）It is interior, mass spectrum post nut（2）On be cased with mass spectrum fixing nut（3）, mass spectrum post nut（2）With mass spectrum fixing nut（3）Between the sealing neonychium I that is provided with（4）By complex protection column jecket（1）Sealing, complex protection column jecket（1）The other end be connected with adjusting part, adjusting part is provided with gas phase post nut（5）, complex protection column jecket（1）The other end be inserted into gas phase post nut（5）One end in, gas phase post nut（5）The other end is connected with gas phase post nut（6）, gas phase post nut（5）With gas phase post nut（6）Between provided with sealing neonychium II（7）.The utility model is not only simple in construction, easy to operate, and can effectively safeguard chromatographic column.
Description
Technical field
The utility model is related to a kind of installation in gas chromatograph for capillary chromatograph and protection instrument.
Background technology
Internal standard method for gas chromatography technology, is provided simultaneously with GC high separations, mass spectrographic high sensitivity, and can conveniently utilize
Standard NIST spectrum degree is retrieved, and has become the powerful of separation and the complicated volatile component of identification, capillary chromatographic column
It is the heart of gas chromatographic analysis, expensive, a usual gas-chromatography will be equipped with the chromatographic column of several opposed polarities, foundation
The property of analyzed component needs to change different chromatographic columns, how to take care of the chromatographic column and correct Fast Installation one changed
New capillary chromatographic column is the problem of current those skilled in the art pay close attention to because capillary column inwall is coated or consolidating of being crosslinked
Determine liquid easily by dioxygen oxidation in air, erosion of the moisture to polyimide coating is easily caused the fracture of chromatographic column, dust and
Harmful gas in laboratory also easily enters in post from chromatographic column two ends, these reductions for resulting in chromatographic column post effect and chromatographic column
Pollution, or even there is ghost peak, therefore, the chromatographic column unloaded down needs two ends to protect.
Current chromatographic column preserves conventional sample introduction pad and silica gel head by the closed at both ends of chromatographic column, and puts back to original packing box,
Although this mode can effectively stop that air and dust enter in chromatographic column, there is following disadvantage：（1）In order to prevent
Sample introduction pad is entered in chromatographic column, is needed the two ends of the chromatographic column clipping a part when installing again, will necessarily so be drawn
Play chromatographic column to shorten, and when cutting chromatographic column, it is desirable to which cutting planes are smooth, therefore can be only achieved by repeatedly cutting will
Ask, in addition when the chip of silica gel enters the distance of chromatographic column more than 1 centimetre, this method cannot be used, separating effect ratio
It is poor；（2）Graphite pads in chromatographic column are difficult to be pulled from capillary column because of high-temperature expansion, chromatographic column after bad adjustment cutting
Injection port length, sometimes has to cut and change graphite pads again, causes to waste the increase with cost；（3）If on hand
Dust and batting in spot, air etc. be easy to pollution chromatographic column outside, it can not protect completely need to insert injection port and
The chromatogram column outer wall cleaning of mass spectrum transmission line, when using mass spectrograph, this point is critically important, and this point is critically important, because installing
There is no gas purging to the capillary column outer arm in simple transmission line, pollution can pass to ion gun, cause baseline noise to increase, and be
Equilibration time of uniting extension.
It is long in the time for changing chromatographic column at present, generally require 20 minutes, it has proven convenient at times, just by chromatographic column
Two ends are exposed to be preserved in atmosphere, and the correct installation of chromatographic column is also critically important, according to the mounting means of current chromatographic column
GC instruments determine to want the insertion depth of chromatographic column, if chromatographic column needs to stretch out 1-2 millimeters of graphite pads mounted in injection port chromatographic column,
Dress on the detector when, it is desirable to chromatographic column is inserted into detector top, 1 millimeter is then drawn back again, using marking pen or it is waste and old enter
Sample pad does a mark on a column, represent post nut should where final position, chromatographic column insertion post nut and graphite
In pad, 1 centimetre of truncated has prevented graphite pads chip, chromatographic column is injected into injection port, with finger tight post nut until her
Chromatographic column is fixed, the post nut 1/4-1/2 that then screws up with a wrench again circles, appropriate pressurization makes chromatographic column not under injection port slippage
Come, but in practical operation, chromatographic column is very thin, diameter only has 0.1,0.53 millimeter, narrow space in chromatographic column incubator, light is not
It is good, it is difficult to observe mark, it is impossible to directly draw back how many millimeters on earth to the chromatographic column being installed on detector and see
Examine, can only be with sensation, when using new graphite pads, its aperture is slightly larger than the diameter of chromatographic column, and chromatographic column is not pressed tightly sometimes
It can be slipped from graphite pads.Have to cut installation again.In addition when gas chromatography mass spectrometry chromatographic column is installed, it is necessary to first shed mass spectrum
Vacuum, opens mass spectrum vacuum chamber, and observation chromatographic column stretches out 1 millimeter of transmission line, and because mass spectrum is unloaded after vacuum, mass spectrum cavity is still born
Pressure condition, thinks that opening mass spectrum side plate is relatively difficult, and opens after side plate, and dust and dusty gas in air can be inhaled by negative pressure
Into chamber, cause quadrupole rod and pollution of ion source, change post, be evacuated down to instrument recover normal condition at least need 6-8 hours,
Incident detection needs can not be met.If chromatographic column dress column length is not right, it may occur that shunting is incorrect, low, peak is responded
Shape is poor, poor repeatability the problems such as.
The content of the invention
The utility model provides a kind of installation in gas chromatograph for capillary chromatograph and protection instrument, and it is not
But it is simple in construction, it is easy to operate, and can effectively safeguard chromatographic column.
The utility model employs following technical scheme：It is a kind of in gas chromatograph for capillary chromatograph installation and
Protection instrument, it is provided with complex protection column jecket, mass spectrum post mounting assembly, described matter is connected with one end of complex protection column jecket
Compose post mounting assembly and be provided with mass spectrum post nut, one end of complex protection column jecket is inserted into mass spectrum post nut, in mass spectrum post nut
Be cased with mass spectrum fixing nut in the threaded post of the other end, capillary mass spectrum post penetrate in complex protection column jecket after by mass spectrum post nut
With being fixedly connected in complex protection column jecket for mass spectrum post nut, it is provided between mass spectrum post nut and mass spectrum fixing nut
Neonychium I is sealed, one end of complex protection column jecket is sealed, is connected with the other end of complex protection column jecket by sealing neonychium I
Adjusting part, described adjusting part is provided with gas phase post nut, and the other end of complex protection column jecket is inserted into gas phase post nut
In one end, gas phase post nut is connected with the gas phase post nut other end, it is after gas phase post nut coordinates with gas phase post nut and compound
The other end connection of column jecket is protected, provided with sealing neonychium II between gas phase post nut and gas phase post nut.
Described complex protection column jecket is the compound protective pipe of dehydration, deoxidation and de- hydrocarbon.Described compound protective pipe is copper
Pipe.The outside of described complex protection column jecket, which is provided with peep hole, peep hole, is provided with magnifying glass.Described sealing neonychium I is
Gas phase graphite pads.Described sealing neonychium II is gas phase graphite pads.
The utility model has the advantages that：Employ after above technical scheme, the utility model can be by de-
The compound protective pipe of water, deoxidation and de- hydrocarbon is effectively preserved capillary column, prevents capillary chromatograph from polluting, also not
Need to carry out closed protective by sample introduction pad and silica gel head, the effect of preservation is good, is effectively guaranteed test data accuracy, drops
Low analysis cost, extends the service life of capillary chromatograph, and use also more convenient, installing pipe not only structure letter
It is single and easy to use, it is easy for installation, quick, accurate, reduce unnecessary delay work the time.Described complex protection column jecket
Outside be provided with magnifying glass.The outside of complex protection column jecket of the present invention, which is provided with peep hole, peep hole, is provided with magnifying glass, so may be used
To observe inside complex protection column jecket.The utility model sealing neonychium I is gas phase graphite pads and seals neonychium II to be gas phase
Graphite pads, so can further improve the preservation effect of capillary chromatograph.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
In Fig. 1, the utility model provides a kind of installation and protection in gas chromatograph for capillary chromatograph
Instrument, it is provided with complex protection column jecket 1, mass spectrum post mounting assembly, described mass spectrum is connected with one end of complex protection column jecket 1
Post mounting assembly is provided with mass spectrum post nut 2, and one end of complex protection column jecket 1 is inserted into mass spectrum post nut 2, in mass spectrum post nut
Be cased with mass spectrum fixing nut 3 in the threaded post of 2 other ends, capillary mass spectrum post penetrate in complex protection column jecket 1 after by mass spectrum post
Nut 2 is fixedly connected in complex protection column jecket 1 with mass spectrum post nut 3, in mass spectrum post nut 2 and mass spectrum fixing nut
Provided with sealing neonychium I 4 between 3, sealing neonychium I 4 seals one end of complex protection column jecket 1, in complex protection column jecket 1
The other end is connected with adjusting part, and described adjusting part is provided with gas phase post nut 5, and the other end of complex protection column jecket 1 is inserted
Into one end of gas phase post nut 5, gas phase post nut 6, gas phase post nut 5 and gas phase are connected with the other end of gas phase post nut 5
Post nut 6 is connected after coordinating with the other end of complex protection column jecket 1, provided with close between gas phase post nut 5 and gas phase post nut 6
Neonychium II 7 is sealed, described complex protection column jecket 1 is the compound protective pipe of dehydration, deoxidation and de- hydrocarbon, described compound protective pipe
1 is copper pipe, and the outside of described complex protection column jecket 1, which is provided with peep hole, peep hole, is provided with magnifying glass 8, and described sealing is protected
Protection pad I 4 is gas phase graphite pads, and described sealing neonychium II 7 is gas phase graphite pads.
Claims (6)
1. a kind of installation and protection instrument in gas chromatograph for capillary chromatograph, it is characterized in that it is provided with complex protection
Column jecket（1）, in complex protection column jecket（1）One end be connected with mass spectrum post mounting assembly, described mass spectrum post mounting assembly is provided with
Mass spectrum post nut（2）, complex protection column jecket（1）One end be inserted into mass spectrum post nut（2）It is interior, in mass spectrum post nut（2）It is another
Mass spectrum fixing nut is cased with the threaded post at end（3）, capillary mass spectrum post penetrates complex protection column jecket（1）Pass through mass spectrum post spiral shell after interior
Cap（2）With mass spectrum post nut（3）Be fixedly connected in complex protection column jecket（1）It is interior, in mass spectrum post nut（2）It is solid with mass spectrum
Determine nut（3）Between provided with sealing neonychium I（4）, seal neonychium I（4）By complex protection column jecket（1）One end sealing,
Complex protection column jecket（1）The other end be connected with adjusting part, described adjusting part is provided with gas phase post nut（5）, it is combined and protects
Guard post pipe（1）The other end be inserted into gas phase post nut（5）One end in, in gas phase post nut（5）The other end is connected with gas phase
Post nut（6）, gas phase post nut（5）With gas phase post nut（6）With complex protection column jecket after cooperation（1）The other end connection,
Gas phase post nut（5）With gas phase post nut（6）Between provided with sealing neonychium II（7）.
2. the installation and protection instrument according to claim 1 in gas chromatograph for capillary chromatograph, its feature
It is described complex protection column jecket（1）For the compound protective pipe of dehydration, deoxidation and de- hydrocarbon.
3. the installation and protection instrument according to claim 2 in gas chromatograph for capillary chromatograph, its feature
It is that described compound protective pipe is copper pipe.
4. the installation and protection instrument according to claim 1 in gas chromatograph for capillary chromatograph, its feature
It is described complex protection column jecket（1）Outside be provided with peep hole, magnifying glass is provided with peep hole（8）.
5. the installation and protection instrument according to claim 1 in gas chromatograph for capillary chromatograph, its feature
It is described sealing neonychium I（4）For gas phase graphite pads.
6. the installation and protection instrument according to claim 1 in gas chromatograph for capillary chromatograph, its feature
It is described sealing neonychium II（7）For gas phase graphite pads.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621486608.0U CN206497089U (en) | 2016-12-31 | 2016-12-31 | A kind of installation and protection instrument in gas chromatograph for capillary chromatograph |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621486608.0U CN206497089U (en) | 2016-12-31 | 2016-12-31 | A kind of installation and protection instrument in gas chromatograph for capillary chromatograph |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206497089U true CN206497089U (en) | 2017-09-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201621486608.0U Active CN206497089U (en) | 2016-12-31 | 2016-12-31 | A kind of installation and protection instrument in gas chromatograph for capillary chromatograph |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110133165A (en) * | 2019-06-20 | 2019-08-16 | 上海华力微电子有限公司 | Chromatographic column auxiliary mounting tool and chromatographic column installation method |
| CN111604675A (en) * | 2019-02-26 | 2020-09-01 | 株式会社岛津制作所 | Device for replacing adsorption tube |
-
2016
- 2016-12-31 CN CN201621486608.0U patent/CN206497089U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111604675A (en) * | 2019-02-26 | 2020-09-01 | 株式会社岛津制作所 | Device for replacing adsorption tube |
| CN110133165A (en) * | 2019-06-20 | 2019-08-16 | 上海华力微电子有限公司 | Chromatographic column auxiliary mounting tool and chromatographic column installation method |
| CN110133165B (en) * | 2019-06-20 | 2021-07-02 | 上海华力微电子有限公司 | Chromatographic column auxiliary mounting tool and chromatographic column mounting method |
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