CN102095824A - Heating device on capillary chromatographic column - Google Patents

Heating device on capillary chromatographic column Download PDF

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Publication number
CN102095824A
CN102095824A CN2011100331161A CN201110033116A CN102095824A CN 102095824 A CN102095824 A CN 102095824A CN 2011100331161 A CN2011100331161 A CN 2011100331161A CN 201110033116 A CN201110033116 A CN 201110033116A CN 102095824 A CN102095824 A CN 102095824A
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CN
China
Prior art keywords
chromatographic column
heating
post
capillary
capillary chromatographic
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Application number
CN2011100331161A
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Chinese (zh)
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CN102095824B (en
Inventor
王海龙
鲍春
孙圣坤
赵国鑫
孟宗保
曹秀君
赵聪聪
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Shanghai Inesa Analytical Instrument Co ltd
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SHANGHAI CO Ltd OF FINE SCIENTIFIC INSTRUMENTS
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Publication of CN102095824A publication Critical patent/CN102095824A/en
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Publication of CN102095824B publication Critical patent/CN102095824B/en
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Abstract

The invention discloses a heating device on a capillary chromatographic column. The heating device comprises a flexible heating insulating bush, a capillary chromatographic column and a chromatographic column heating body, wherein the capillary chromatographic column is embedded in the chromatographic column heating body; the chromatographic column heating body is embedded in the flexible heating insulating bush; the capillary chromatographic column is connected between a six-way valve and a detector of a gas chromatograph through a screw extruded graphite sleeve chuck so as to be fixed; the chromatographic column heating body is inserted into an attachment joint and is fixed through an insulating and heat-resisting bracket in a column box; the attachment joint is provided with a heating electrode terminal so as to directly heat the chromatographic column; the heating electrode terminal is fixed on the column box through a connector fixing column and a connecting spacer; and a precise thermal resistor is arranged in the column box. The heating device on the chromatographic column provided by the invention is microminiaturized and modularized, has rapid temperature rise and temperature reduction, low power consumption, low cost and high efficiency, makes the chromatographic column uniformly heated and ensures high separation and analysis efficiency.

Description

Heating arrangement on a kind of capillary chromatographic column post
Technical field
The invention belongs to technical field of analytical instruments, heating arrangement on particularly a kind of capillary chromatographic column post that is used for gas chromatograph.
Background technology
Chromatographic column is the core of gas chromatograph, and major function is to finish chromatographic sample to separate, and the temperature of the chromatography column of paramount importance index index that is gas chromatograph, its stability, repeatability is to chromatographic resolution, qualitative, quantitatively most important.Chromatographic column will realize being an important techniques link to the quick lifting/lowering temperature of its pillar in the course of the work.At present, to the chromatographic column type of heating, traditional mode is for to be positioned over chromatographic column in the post case, and direct then heated beam case utilizes fan to make its heat carry out convection current, thereby reaches thermal equilibrium; This type of heating, the long-pending design of post casing is big, and power consumption own is big, can't realize quick lifting/lowering temperature, and is not suitable for the application of portable chromatograph; Comparatively Xian Dai design has: design heating skeleton in the post casing, kapillary is wrapped on the skeleton, by the heating arrangement on the skeleton wall kapillary is heated then, this type of heating heating is inhomogeneous, efficient is lower, can't satisfy the demand for development of the quick separation detection of modern analytical technique.
Summary of the invention
The purpose of this invention is to provide heating arrangement on a kind of high efficiency low energy consumption capillary chromatographic column post that can be portable.
Technical scheme of the present invention is, heating arrangement on a kind of capillary chromatographic column post, comprise flexible heating insulation sleeve, capillary chromatographic column and chromatographic column calandria three parts, described capillary chromatographic column is nested in the chromatographic column calandria, the chromatographic column calandria is nested in the flexible heating insulation sleeve, described capillary chromatographic column is fixed, be connected between six-way valve and the detecting device by screw extruded anisotropic graphite cutting ferrule, the chromatographic column calandria directly inserts in the jointing of two ends by easy structure, and by insulation in the post case, heat-resisting support is fixed, described jointing design has the heating electrode terminal, it is directly heated chromatographic column, described heating electrode terminal by the connector fixed leg be connected pad and be fixed in the post case, be provided with accurate thermal resistance in the post case.
Described chromatographic column is a capillary column, adopts quartzy material.
Heating arrangement is meant that capillary chromatographic column is nested in the chromatographic column calandria on the described capillary chromatographic column post, and the chromatographic column calandria is nested in the flexible electrical heating insulation sleeve.
Described chromatographic column calandria adopts stainless steel or copper material.
Described insulation, heat-resisting support adopt the mica material.
Described chromatographic column calandria is cylindrical, and the internal physical size diameter is that φ 0.4mm-φ 1.6mm, wall thickness are that 0.1mm-1mm, length overall are 1m-65m.
Heat on the described capillary chromatographic column post, be meant by the chromatographic column calandria and directly capillary chromatographic column heated.
Described flexible heating insulation sleeve adopts glass fiber material as insulator.
Described flexible heating insulation sleeve is cylindrical, and the internal physical size diameter is that φ 0.6mm-φ 3mm, wall thickness are that 0.1mm-0.5mm, length overall are 1m-65m.
Each parts of heating arrangement adopt stainless steel, teflon, brass, pottery, quartz, graphite, mica, glass fiber material on the described capillary chromatographic column post.
Described thermode terminal pushes mutually with jointing by the connection pad and compresses, and draws the heating electrode line.
Be provided with fan in the described post case, be used for fast cooling.
Be provided with accurate thermal resistance in the described post case, adopt the platinum resistor temperature measuring element, be used for temperature real-time measurement chromatographic column.
The invention has the beneficial effects as follows, broken the deficiency of heating technique on the existing chromatographic column post, a kind of microminiaturization is provided, modularization, quick lifting/lowering temperature, low-power consumption, low cost, high efficiency on-column heating device of chromatographic column, make the chromatographic column thermally equivalent, guarantee the compartment analysis usefulness that it is good, the futures analysis instrument, heating system design on the particularly modern miniature analytical instrument post has very far-reaching reference reference significance.
Description of drawings
Fig. 1 is a heating arrangement structural representation on a kind of capillary chromatographic column post of the present invention, wherein:
1-one six-way valve;
2-one support;
3-one capillary chromatographic column;
4-one chromatographic column calandria;
5-one flexible heating insulation sleeve;
6-one cooling fan;
7-one post case;
8-one accurate thermal resistance;
9-one connects pad;
10---the connector fixed leg;
11---detecting device;
12---jointing;
13---screw;
14---graphite ferrule;
15---the heating electrode terminal.
Embodiment
As shown in Figure 1, the invention provides heating arrangement on a kind of capillary chromatographic column post, capillary chromatographic column 3 is nested in the chromatographic column calandria 4, described chromatographic column calandria 4 adopts stainless steel, profile is cylindrical, the internal physical size diameter is φ 0.8mm, wall thickness is 0.2mm, length overall is 15m, chromatographic column calandria 4 is nested in the flexible heating insulation sleeve 5, described flexible heating insulation sleeve 5 adopts the glass fibre material, the internal physical size diameter is φ 1.2mm, wall thickness is 0.1mm, length overall is 15m, capillary chromatographic column 3 is fixed and is connected between six-way valve 1 and the detecting device 11 by screw 13 extruded anisotropic graphite cutting ferrules 14, chromatographic column calandria 4 directly inserts in the jointing 12 by easy structure, and by insulation in the post case 7, heat-resisting support 2 is fixed, described insulation, heat-resisting support 2 adopts the mica material, the design of described jointing 12 two ends has heating electrode terminal 15, it is directly heated chromatographic column, described heating electrode terminal 15 is by connector fixed leg 10, jointing 12 be connected pad 9 and be fixed in post case 7, be provided with accurate thermal resistance 8 in the described post case 7, can be to the temperature real-time measurement of chromatographic column, and accurately control, fast cooling fan 6 is set in the post case 7, be used for the chromatographic column fast cooling, thereby improved stratographic analysis efficient.
Each parts of heating arrangement adopt stainless steel, teflon, brass, pottery, quartz, graphite, glass fiber material on the described capillary chromatographic column post.

Claims (10)

1. heating arrangement on the capillary chromatographic column post, it is characterized in that, comprise flexible heating insulation sleeve, capillary chromatographic column and chromatographic column calandria, described capillary chromatographic column is nested in the chromatographic column calandria, the chromatographic column calandria is nested in the flexible heating insulation sleeve, described capillary chromatographic column is connected in by screw extruded anisotropic graphite cutting ferrule between the detecting device of six-way valve and gas chromatograph and fixes, described chromatographic column calandria inserts in the jointing, and by insulation in the post case, heat-resisting support is fixed, described jointing design has the heating electrode terminal, it is directly heated chromatographic column, described heating electrode terminal by the connector fixed leg be connected pad and be fixed in the post case, be provided with accurate thermal resistance in the post case.
2. heating arrangement on the capillary chromatographic column post as claimed in claim 1 is characterized in that, described chromatographic column is for adopting the capillary column of quartzy material.
3. heating arrangement on the capillary chromatographic column post as claimed in claim 1 is characterized in that, described chromatographic column calandria adopts stainless steel or copper material.
4. heating arrangement on the capillary chromatographic column post as claimed in claim 1 is characterized in that, described insulation, heat-resisting support adopt the mica material.
5. heating arrangement on the capillary chromatographic column post as claimed in claim 1 is characterized in that, described chromatographic column calandria is cylindrical, and the internal physical size diameter is that φ 0.4mm~φ 1.6mm, wall thickness are that 0.1mm~1mm, length overall are 1m~65m.
6. heating arrangement on the capillary chromatographic column post as claimed in claim 1 is characterized in that, described flexible heating insulation sleeve adopts glass fiber material as insulator.
7. heating arrangement on the capillary chromatographic column post as claimed in claim 1 is characterized in that, described flexible heating insulation sleeve is cylindrical, and the internal physical size diameter is that φ 0.6mm~φ 3mm, wall thickness are that 0.1mm~0.5mm, length overall are 1m~65m.
8. heating arrangement on the capillary chromatographic column post as claimed in claim 1 is characterized in that, described thermode terminal pushes mutually with jointing by the connection pad and compresses, and draws the heating electrode line.
9. heating arrangement on the capillary chromatographic column post as claimed in claim 1 is characterized in that, is provided with fan in the described post case, is used for fast cooling.
10. heating arrangement on the capillary chromatographic column post as claimed in claim 1 is characterized in that, the accurate thermal resistance that is provided with in the described post case adopts the platinum resistor temperature measuring element, is used for the temperature real-time measurement to chromatographic column.
CN 201110033116 2011-01-30 2011-01-30 Heating device on capillary chromatographic column Expired - Fee Related CN102095824B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201110033116 CN102095824B (en) 2011-01-30 2011-01-30 Heating device on capillary chromatographic column

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201110033116 CN102095824B (en) 2011-01-30 2011-01-30 Heating device on capillary chromatographic column

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CN102095824A true CN102095824A (en) 2011-06-15
CN102095824B CN102095824B (en) 2013-06-12

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103630629A (en) * 2013-12-13 2014-03-12 河南师范大学 Gas chromatograph
CN104122351A (en) * 2013-04-24 2014-10-29 中国科学院大连化学物理研究所 Uniform-temperature chromatographic column heating apparatus
CN104181262A (en) * 2013-05-23 2014-12-03 中国科学院大连化学物理研究所 Cold zone-free low-power dissipation miniature furnace case
CN104508479A (en) * 2012-08-07 2015-04-08 株式会社岛津制作所 Gas chromatography equipment
CN104737012A (en) * 2012-10-25 2015-06-24 株式会社岛津制作所 Gas chromatograph device
CN109239245A (en) * 2017-07-10 2019-01-18 中国科学院上海药物研究所 A kind of chromatography column holder
CN110596289A (en) * 2019-10-17 2019-12-20 钢研纳克检测技术股份有限公司 Chromatographic column device capable of rapidly increasing and decreasing temperature
CN112834633A (en) * 2020-12-28 2021-05-25 北京杰宇广谱科技有限公司 Fast hydrocarbon composition analyzer
CN113607866A (en) * 2021-07-14 2021-11-05 杭州谱育科技发展有限公司 Apparatus for controlling temperature of chromatographic column and method for manufacturing the same

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6093921A (en) * 1999-03-04 2000-07-25 Mt Systems, Llc Microwave heating apparatus for gas chromatographic columns
CN2525514Y (en) * 2002-01-09 2002-12-11 复旦大学 Heater on compact gas chromatographic column
CN101672830A (en) * 2009-04-08 2010-03-17 北京市劳动保护科学研究所 On-column heating device of chromatographic column
CN201955332U (en) * 2011-01-30 2011-08-31 上海精密科学仪器有限公司 Capillary chromatographic column mounted heating device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6093921A (en) * 1999-03-04 2000-07-25 Mt Systems, Llc Microwave heating apparatus for gas chromatographic columns
CN2525514Y (en) * 2002-01-09 2002-12-11 复旦大学 Heater on compact gas chromatographic column
CN101672830A (en) * 2009-04-08 2010-03-17 北京市劳动保护科学研究所 On-column heating device of chromatographic column
CN201955332U (en) * 2011-01-30 2011-08-31 上海精密科学仪器有限公司 Capillary chromatographic column mounted heating device

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104508479A (en) * 2012-08-07 2015-04-08 株式会社岛津制作所 Gas chromatography equipment
CN104508479B (en) * 2012-08-07 2016-03-16 株式会社岛津制作所 Gas chromatograph device
CN104737012A (en) * 2012-10-25 2015-06-24 株式会社岛津制作所 Gas chromatograph device
CN104122351A (en) * 2013-04-24 2014-10-29 中国科学院大连化学物理研究所 Uniform-temperature chromatographic column heating apparatus
CN104181262A (en) * 2013-05-23 2014-12-03 中国科学院大连化学物理研究所 Cold zone-free low-power dissipation miniature furnace case
CN104181262B (en) * 2013-05-23 2016-03-02 中国科学院大连化学物理研究所 The small boiler case of a kind of cold area free low-power consumption
CN103630629A (en) * 2013-12-13 2014-03-12 河南师范大学 Gas chromatograph
CN109239245A (en) * 2017-07-10 2019-01-18 中国科学院上海药物研究所 A kind of chromatography column holder
CN110596289A (en) * 2019-10-17 2019-12-20 钢研纳克检测技术股份有限公司 Chromatographic column device capable of rapidly increasing and decreasing temperature
CN110596289B (en) * 2019-10-17 2024-03-22 钢研纳克检测技术股份有限公司 Chromatographic column device capable of rapidly increasing and decreasing temperature
CN112834633A (en) * 2020-12-28 2021-05-25 北京杰宇广谱科技有限公司 Fast hydrocarbon composition analyzer
CN113607866A (en) * 2021-07-14 2021-11-05 杭州谱育科技发展有限公司 Apparatus for controlling temperature of chromatographic column and method for manufacturing the same

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