CN105605071A - Capillary chromatographic column auxiliary mounting nut and capillary chromatographic column mounting method - Google Patents
Capillary chromatographic column auxiliary mounting nut and capillary chromatographic column mounting method Download PDFInfo
- Publication number
- CN105605071A CN105605071A CN201610095287.XA CN201610095287A CN105605071A CN 105605071 A CN105605071 A CN 105605071A CN 201610095287 A CN201610095287 A CN 201610095287A CN 105605071 A CN105605071 A CN 105605071A
- Authority
- CN
- China
- Prior art keywords
- chromatographic column
- capillary chromatographic
- external device
- interface
- auxiliary mounting
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 19
- 238000009434 installation Methods 0.000 claims description 13
- 239000004973 liquid crystal related substance Substances 0.000 abstract description 11
- 238000010586 diagram Methods 0.000 description 3
- 238000004817 gas chromatography Methods 0.000 description 3
- 238000004587 chromatography analysis Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- 238000001819 mass spectrum Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B37/00—Nuts or like thread-engaging members
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Treatment Of Liquids With Adsorbents In General (AREA)
Abstract
The invention provides a capillary chromatographic column auxiliary mounting nut and a capillary chromatographic column mounting method. The capillary chromatographic column auxiliary mounting nut comprises a nut body, the upper end inside the nut body adopts a cone-shaped leading-in part, the lower end inside the nut body adopts a connector, the narrow end of the cone-shaped leading-in part faces the connector and is connected with the connector, the connector can be connected with an external device, the narrow end of the cone-shaped leading-in part corresponds to a mounting port, receiving a capillary chromatographic column, of the external device, and therefore the capillary chromatographic column can penetrate through the cone-shaped leading-in part and the connector to be inserted into the mounting port. The capillary chromatographic column auxiliary mounting nut and the capillary chromatographic column mounting method have the advantages that the cone-shaped leading-in part of the auxiliary mounting nut is utilized to assist in rapidly inserting the capillary chromatographic column into the mounting port of the external device; furthermore, by means of a channel of the auxiliary mounting nut, the auxiliary mounting nut can be taken out of the capillary chromatographic column; meanwhile, the repeatability of a liquid crystal test is improved, mounting of the capillary chromatographic column becomes more rapid and easier, and damage to the capillary chromatographic column does not exist after mounting is conducted.
Description
Technical field
The present invention relates to chromatography field, relate in particular to the auxiliary mounting nuts of a kind of capillary chromatographic column and capillary chromatographic columnInstallation method.
Background technology
TFT-LCD (Thinfilmtransistor-liquidcrystaldisplay: thin film transistor-liquid crystal display) is to exist at presentThe combination properties such as brightness, contrast, power consumption, life-span, volume and weight all show good display device, and its performance is excellentGood, large-scale production characteristic is good, automaticity is high, development space is wide, has occupied gradually the master of field of displayLead status.
Liquid crystal is as producing one of topmost raw material of TFT-LCD, and therefore its characteristic is extremely important, and laboratory often utilizes gasChromatography (GC) and gas chromatograph-mass spectrometer (GC-MS) carry out the analytical test of liquid crystal, as test liquid crystal each constituent content,Liquid crystal purity, liquid crystal mass spectrum, liquid crystal pollution etc. In the use procedure of GC and GC-MS, often relate to capillary chromatographic columnInstallation and replacing.
Referring to Fig. 1 and Fig. 2, while at present capillary chromatographic column being installed, directly tiny capillary chromatographic column 10 is directly insertedInjection port and detector two end interfaces 11 are installed, then by the hold-down nut 12 and the institute that are arranged on capillary chromatographic column 10State injection port and detector two end interfaces are fixed, thereby realize the installation of capillary chromatographic column 10. But because injection port and detectionDevice two end interface 11 holes are less, more difficult capillary chromatographic column 10 accurately inserted, and easily cause capillary chromatographic column 10 endsDamaged on end wound.
Therefore can fast and with no damage capillary chromatographic column be installed, become the problem of needing at present solution badly.
Summary of the invention
Technical problem to be solved by this invention is that the auxiliary mounting nuts of a kind of capillary chromatographic column and capillary chromatographic column are providedInstallation method, it makes to install capillary chromatographic column and becomes simple fast, promotes the repeatability of liquid crystal test, and capillary after installingPipe chromatographic column not damaged.
In order to address the above problem, the invention provides the auxiliary mounting nuts of a kind of capillary chromatographic column, comprise nut body,The inner upper end of described nut body is a taper introduction part, and the interior lower end of described nut body is an interface, described taperThe narrow end of introduction part is communicated with towards described interface and with described interface, and described interface can be connected with an external device (ED), described coneThe narrow end of shape introduction part is corresponding with the installing port of the reception capillary chromatographic column of described external device (ED), so that described capillary chromatographyPost inserts described installing port through described taper introduction part and interface.
Further, have one in described nut body side and run through the ditch of described nut body along described nut body axial directionRoad, described raceway groove is communicated with described taper introduction part and interface, on described capillary chromatographic column device mounted externally after,Described raceway groove is for removing described auxiliary mounting nuts from described capillary chromatographic column.
Further, have a pipeline at the narrow end of described taper introduction part, described narrow end is communicated with interface by described pipeline.
Further, described interface inwall has internal thread, and described interface is connected by described internal thread with described external device (ED).
Further, the axle center of the axle center of the narrow end of described taper introduction part and the installing hole of described external device (ED) point-blank.
The present invention also provides a kind of capillary chromatographic column installation method, comprise the steps: by the interface of auxiliary mounting nuts withExternal device (ED) connects, the narrow end of the taper introduction part of described auxiliary mounting nuts and the reception capillary chromatography of described external device (ED)The installing port correspondence of post; Taper introduction part and interface by capillary chromatographic column through described auxiliary mounting nuts, and insert instituteState the installing port of external device (ED); Described capillary chromatographic column is fixedly connected with external device (ED).
Further, described capillary chromatographic column being fixed on external device (ED) before step, comprise that one removes described auxiliary peaceThe step of loading nut: mobile described auxiliary mounting nuts, so that described capillary chromatographic column is from the ditch of described auxiliary mounting nutsIn road, shift out, thereby described auxiliary mounting nuts is removed.
Further, on described capillary chromatographic column, be fixed with a hold-down nut, removing after described auxiliary mounting nuts, by instituteState hold-down nut and be connected with external device (ED), thereby described capillary chromatographic column is fixedly connected with external device (ED).
Further, have a pipeline at the narrow end of described taper introduction part, described narrow end connects by described pipeline and described interfaceLogical.
Further, described interface inwall has internal thread, and described interface is connected by described internal thread with described external device (ED).
Further, the axle center of the axle center of the narrow end of described taper introduction part and the installing hole of described external device (ED) point-blank.
The invention has the advantages that, the taper introduction part of the auxiliary mounting nuts of utilization is assisted capillary chromatographic column is inserted fastThe installing port of external device (ED), further can utilize the raceway groove of auxiliary mounting nuts will assist mounting nuts from capillary chromatographic columnTake out, capillary chromatographic column is installed fast and accurately, promote the repeatability of liquid crystal test simultaneously, make to install capillary chromatographic columnBecome simple fast, and postcapillary chromatographic column not damaged is installed.
Brief description of the drawings
Fig. 1 and Fig. 2 are existing capillary chromatographic column mounting process schematic diagrames;
Fig. 3 is the three-dimensional structure diagram of the auxiliary mounting nuts of capillary chromatographic column of the present invention;
Fig. 4 is the internal structure schematic diagram of the auxiliary mounting nuts of capillary chromatographic column of the present invention;
Fig. 5 be the auxiliary mounting nuts of capillary chromatographic column of the present invention top view;
Fig. 6 A～Fig. 6 G is the process chart of capillary chromatographic column installation method of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing to the auxiliary mounting nuts of capillary chromatographic column provided by the invention and capillary chromatographic column installation methodDetailed description of the invention elaborates.
Referring to Fig. 3 and Fig. 4, the auxiliary mounting nuts of capillary chromatographic column of the present invention comprises nut body 20.
The inner upper end of described nut body 20 is a taper introduction part 21, with guide described capillary chromatographic column 24 (referring toFig. 6 C) through described auxiliary mounting nuts. The wide end of described taper introduction part 21 outside nut body 20, narrow end courtTo described nut body 20 inside, therefore, capillary chromatographic column 24 is leniently held into bringing out from narrow, has avoided capillary chromatographyPost 24 enters and causes capillary chromatographic column 24 to damage from tiny hole, and makes to install capillary chromatographic column 24 and become quickSimply, promote the repeatability of liquid crystal test.
The interior lower end of described nut body 20 is an interface 22, and the narrow end of described taper introduction part 21 is towards described interface 22And be communicated with described interface 22. Described interface 22 can be connected with an external device (ED) 30 (referring to Fig. 6 A), in described interfaceWall has internal thread, and described interface is connected by described internal thread with described external device (ED). The narrow end of described taper introduction part 21Corresponding with the installing port 31 (referring to Fig. 6 A) of the reception capillary chromatographic column 24 of described external device (ED) 30, so that described capillaryPipe chromatographic column 24 is inserted described installing port 31 through described taper introduction part 21 and interface 22. Preferably, described taper importsThe axle center of the axle center of the narrow end of portion 21 and the installing hole of described external device (ED) 31, makes described capillary look point-blankSpectrum post 24 inserts in described installing hole 31 like clockwork.
Have a pipeline 23 at the narrow end of described taper introduction part 21, described narrow end is communicated with interface 22 by described pipeline 23.If there is not pipeline 23 at the narrow end of described taper introduction part 21 and the junction of interface 22,, described narrow end with described in connectMouth 22 junctions are a wedge angle, and this wedge angle may cause described capillary chromatographic column 24 to damage. And the depositing of described pipeline 23, making described narrow end and described interface 22 junctions is not wedge angle, described pipeline 23 is carried for described capillary chromatographic column 24For protection, and then avoid described capillary chromatographic column 24 to be damaged by the wedge angle of described narrow end and described interface 22 junctions.
Preferably, referring to Fig. 3 and Fig. 5, have one along described nut body 20 axial directions in described nut body 20 sidesRun through the raceway groove 25 of described nut body 20. Described raceway groove 25 is communicated with described taper introduction part 21 and interface 22. InstituteAfter stating on capillary chromatographic column 24 device 30 mounted externally, described raceway groove 25 for by described auxiliary mounting nuts from describedOn capillary chromatographic column 24, remove. After the interface of described auxiliary mounting nuts 22 and external device (ED) 30 are disconnected, mobileDescribed auxiliary mounting nuts, makes described capillary chromatographic column 24 shift out along described raceway groove 25, and then described in having realized and removingThe object of auxiliary mounting nuts.
Adopt the auxiliary mounting nuts of the present invention can assist the installing port that capillary chromatographic column 24 is inserted fast to external device (ED)31, then utilize raceway groove 25 will assist mounting nuts to take out from capillary chromatographic column 24, capillary is installed fast and accuratelyChromatographic column 24.
The present invention also provides a kind of capillary chromatographic column installation method. Described installation method comprises the steps:
(a), referring to Fig. 6 A and Fig. 6 B, the interface 22 of auxiliary mounting nuts is connected to described auxiliary peace with external device (ED) 30The narrow end of the taper introduction part 21 of loading nut is corresponding with the installing port 31 of the reception capillary chromatographic column of described external device (ED) 30.Preferably, the axle center of the axle center of the narrow end of described taper introduction part 21 and the installing hole of described external device (ED) 31 is at straight lineUpper, described capillary chromatographic column 24 is inserted in described installing hole 31 like clockwork.
(b) referring to Fig. 6 C and Fig. 6 D, the taper introduction part 21 by capillary chromatographic column 24 through described auxiliary mounting nutsAnd interface 22, and insert the installing port 31 of described external device (ED).
(c) referring to Fig. 6 E and Fig. 6 F, described auxiliary mounting nuts and described external device (ED) 30 are disconnected, and mobile instituteState auxiliary mounting nuts, so that described capillary chromatographic column 24 shifts out from the raceway groove 25 of described auxiliary mounting nuts, therebyDescribed auxiliary mounting nuts is removed.
(d), referring to Fig. 6 G, described capillary chromatographic column 24 is fixedly connected with external device (ED) 30. Described capillary chromatographyOn post 24, be fixed with a hold-down nut 26. Described hold-down nut 26 can be fixed on described capillary chromatographic column 24 in advance. ?Remove after described auxiliary mounting nuts, mobile described hold-down nut 26, described hold-down nut 26 drives described capillary chromatographic column24 continue to insert in described external device (ED) 30, treat that described hold-down nut moves to the position of the installing hole 31 of described external device (ED),Described hold-down nut 26 is connected with external device (ED) 30, thereby described capillary chromatographic column 24 is fixedly connected with external device (ED).Described hold-down nut 26 can adopt and be threaded with external device (ED) 30.
The above is only the preferred embodiment of the present invention, it should be pointed out that for those skilled in the art,Under the premise without departing from the principles of the invention, can also make some improvements and modifications, these improvements and modifications also should be considered as thisThe protection domain of invention.
Claims (11)
1. the auxiliary mounting nuts of capillary chromatographic column, comprises nut body, it is characterized in that, on the inside of described nut bodyEnd is a taper introduction part, and the interior lower end of described nut body is an interface, and the narrow end of described taper introduction part is towards instituteState interface and be communicated with described interface, described interface can be connected with an external device (ED), the narrow end of described taper introduction part withThe installing port correspondence of the reception capillary chromatographic column of described external device (ED), so that described capillary chromatographic column is through described taperIntroduction part and interface insert described installing port.
2. the auxiliary mounting nuts of capillary chromatographic column according to claim 1, is characterized in that, in described nut body sideHave one and run through raceway groove, described raceway groove and the described taper introduction part of described nut body along described nut body axial directionAnd interface is communicated with, on described capillary chromatographic column device mounted externally after, described raceway groove is for by described auxiliary installationNut removes from described capillary chromatographic column.
3. the auxiliary mounting nuts of capillary chromatographic column according to claim 1, is characterized in that, in described taper introduction partNarrow end has a pipeline, and described narrow end is communicated with interface by described pipeline.
4. the auxiliary mounting nuts of capillary chromatographic column according to claim 1, is characterized in that, in described interface inwall hasScrew thread, described interface is connected by described internal thread with described external device (ED).
5. the auxiliary mounting nuts of capillary chromatographic column according to claim 1, is characterized in that, described taper introduction part narrowThe axle center of the axle center of end and the installing hole of described external device (ED) point-blank.
6. a capillary chromatographic column installation method, is characterized in that, comprises the steps:
The interface of auxiliary mounting nuts is connected with external device (ED), the narrow end of the taper introduction part of described auxiliary mounting nuts and described inThe installing port correspondence of the reception capillary chromatographic column of external device (ED);
Capillary chromatographic column is passed to taper introduction part and the interface of described auxiliary mounting nuts, and insert the peace of described external device (ED)Dress mouthful;
Described capillary chromatographic column is fixedly connected with external device (ED).
7. capillary chromatographic column installation method according to claim 6, is characterized in that, described capillary chromatographic column is solidFix on external device (ED) before step, further comprise that one removes the step of described auxiliary mounting nuts: be mobile described auxiliaryMounting nuts, so that described capillary chromatographic column shifts out from the raceway groove of described auxiliary mounting nuts, thereby by described auxiliaryMounting nuts removes.
8. capillary chromatographic column installation method according to claim 7, is characterized in that, fixing on described capillary chromatographic columnThere is a hold-down nut, removing after described auxiliary mounting nuts, described hold-down nut is connected with external device (ED), thus willDescribed capillary chromatographic column is fixedly connected with external device (ED).
9. capillary chromatographic column installation method according to claim 6, is characterized in that, at the narrow end of described taper introduction partHave a pipeline, described narrow end is communicated with described interface by described pipeline.
10. capillary chromatographic column installation method according to claim 6, is characterized in that, described interface inwall has internal thread,Described interface is connected by described internal thread with described external device (ED).
11. capillary chromatographic column installation methods according to claim 6, is characterized in that, the narrow end of described taper introduction partThe axle center of the installing hole of axle center and described external device (ED) point-blank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610095287.XA CN105605071B (en) | 2016-02-19 | 2016-02-19 | Capillary chromatographic column auxiliary installs nut and capillary chromatographic column installation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610095287.XA CN105605071B (en) | 2016-02-19 | 2016-02-19 | Capillary chromatographic column auxiliary installs nut and capillary chromatographic column installation method |
Publications (2)
| Publication Number | Publication Date |
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| CN105605071A true CN105605071A (en) | 2016-05-25 |
| CN105605071B CN105605071B (en) | 2017-10-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610095287.XA Active CN105605071B (en) | 2016-02-19 | 2016-02-19 | Capillary chromatographic column auxiliary installs nut and capillary chromatographic column installation method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106645452A (en) * | 2016-10-10 | 2017-05-10 | 深圳市华星光电技术有限公司 | Removing device and removing method for gas chromatograph-mass spectrometer glass lining pipes |
| DE102018103609A1 (en) | 2018-02-19 | 2019-08-22 | Bruker Daltonik Gmbh | Liquid connection device for ionization by electrospray |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2087340U (en) * | 1991-01-09 | 1991-10-23 | 中国科学院大连化学物理研究所 | High-efficiency general joint for liquid-phase chromatographic column |
| JPH0894601A (en) * | 1994-09-27 | 1996-04-12 | Shimadzu Corp | Gas chromatograph and capillary column |
| WO2001073338A1 (en) * | 2000-03-27 | 2001-10-04 | Sge International Pty. Ltd. | Ferrule seal |
| CN102239408A (en) * | 2008-12-02 | 2011-11-09 | 道尼克斯索芙特隆公司 | Plug unit and connection system for connecting capillaries, particularly for high-performance liquid chromatography |
| CN102565244A (en) * | 2011-12-31 | 2012-07-11 | 聚光科技(杭州)股份有限公司 | Triggering device and method for sample injection port of chromatograph |
| CN203164162U (en) * | 2013-04-10 | 2013-08-28 | 国家电网公司 | Balanced carrier gas taking device |
| CN203176125U (en) * | 2012-12-04 | 2013-09-04 | 山东鲁南瑞虹化工仪器有限公司 | Capillary column rapid-replacing nut of gas chromatograph |
| CN103424493A (en) * | 2012-05-15 | 2013-12-04 | 株式会社岛津制作所 | Needle port |
| CN203688514U (en) * | 2014-01-24 | 2014-07-02 | 河南同兴仪器设备有限公司 | Capillary guide pipe of gas chromatograph |
| CN204985259U (en) * | 2015-07-08 | 2016-01-20 | 东莞出入境检验检疫局检验检疫综合技术中心 | Easily clearance type chromatography -mass spectroscopy interface nut |
-
2016
- 2016-02-19 CN CN201610095287.XA patent/CN105605071B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2087340U (en) * | 1991-01-09 | 1991-10-23 | 中国科学院大连化学物理研究所 | High-efficiency general joint for liquid-phase chromatographic column |
| JPH0894601A (en) * | 1994-09-27 | 1996-04-12 | Shimadzu Corp | Gas chromatograph and capillary column |
| WO2001073338A1 (en) * | 2000-03-27 | 2001-10-04 | Sge International Pty. Ltd. | Ferrule seal |
| CN102239408A (en) * | 2008-12-02 | 2011-11-09 | 道尼克斯索芙特隆公司 | Plug unit and connection system for connecting capillaries, particularly for high-performance liquid chromatography |
| CN102565244A (en) * | 2011-12-31 | 2012-07-11 | 聚光科技(杭州)股份有限公司 | Triggering device and method for sample injection port of chromatograph |
| CN103424493A (en) * | 2012-05-15 | 2013-12-04 | 株式会社岛津制作所 | Needle port |
| CN203176125U (en) * | 2012-12-04 | 2013-09-04 | 山东鲁南瑞虹化工仪器有限公司 | Capillary column rapid-replacing nut of gas chromatograph |
| CN203164162U (en) * | 2013-04-10 | 2013-08-28 | 国家电网公司 | Balanced carrier gas taking device |
| CN203688514U (en) * | 2014-01-24 | 2014-07-02 | 河南同兴仪器设备有限公司 | Capillary guide pipe of gas chromatograph |
| CN204985259U (en) * | 2015-07-08 | 2016-01-20 | 东莞出入境检验检疫局检验检疫综合技术中心 | Easily clearance type chromatography -mass spectroscopy interface nut |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106645452A (en) * | 2016-10-10 | 2017-05-10 | 深圳市华星光电技术有限公司 | Removing device and removing method for gas chromatograph-mass spectrometer glass lining pipes |
| CN106645452B (en) * | 2016-10-10 | 2019-05-03 | 深圳市华星光电技术有限公司 | The glass bushing pipe of gas chromatograph and gas chromatograph-mass spectrometer removes device and removing method |
| DE102018103609A1 (en) | 2018-02-19 | 2019-08-22 | Bruker Daltonik Gmbh | Liquid connection device for ionization by electrospray |
| CN110176383A (en) * | 2018-02-19 | 2019-08-27 | 布鲁克道尔顿有限公司 | Liquid for electro-spray ionization connects equipment |
| US10593532B2 (en) | 2018-02-19 | 2020-03-17 | Bruker Daltonik Gmbh | Liquid junction apparatus for electrospray ionization |
| DE102018103609B4 (en) * | 2018-02-19 | 2021-06-02 | Bruker Daltonik Gmbh | Fluid connection device for ionization by electrospray |
| CN110176383B (en) * | 2018-02-19 | 2021-09-03 | 布鲁克·道尔顿有限及两合公司 | Liquid connection equipment for electrospray ionization |
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| Publication number | Publication date |
|---|---|
| CN105605071B (en) | 2017-10-24 |
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