CN1877319A - Minisize chromatographic column box with high precision temperature control system - Google Patents
Minisize chromatographic column box with high precision temperature control system Download PDFInfo
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- CN1877319A CN1877319A CN 200510074927 CN200510074927A CN1877319A CN 1877319 A CN1877319 A CN 1877319A CN 200510074927 CN200510074927 CN 200510074927 CN 200510074927 A CN200510074927 A CN 200510074927A CN 1877319 A CN1877319 A CN 1877319A
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- temperature control
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Abstract
The invention discloses a micro chromatographic column tank which comprises a tank body, capillary column heating frame set in the tank, capillary column bound around the frame, a heating device set on the inner wall of the frame, a precise thermo resistor and a temperature control system set out of the tank. The capillary column heating frame employs metal alloy material; the capillary column employs quartz material; the heating device is flexible electrical heating membrane coated on the inner wall of the frame; the temperature control system includes a temperature control module, the precise thermo resistor connects with the signal input terminal of the temperature control module, the output terminal of the temperature control module connects with the insulating single-phase alternative current modulator module of which one end of the output terminal connects with the heating device, and the other end of the output terminal connects with the input power.
Description
Technical field
The present invention relates to a kind of parts of analytical instrument, specifically, relate to a kind of portable minisize, modular capillary pipe chromatograph box with high-precision temperature control system.
Background technology
The portable minisize chromatograph box is a kind of detecting instrument of working at normal temperatures and pressures.The heating skeleton of chromatograph box inside adopts metal material to make the capillary column cylinder frame, and capillary column is wrapped on the cylinder frame, by electric heating material capillary column is heated.The temperature sensing that will heat skeleton by thermal resistance reaches the purpose of adjusting temperature to temperature-control circuit by its control SSR (solid-state relay) again.
But, because the technical matters of heating material and heater, at present, the maximum operating temperature of traditional portable minisize chromatograph box can only reach 180 ℃～200 ℃, the control circuit of simultaneously traditional portable minisize chromatograph box directly is connected with solid-state relay, temperature-control circuit utilizes the break-make of SSR to reach the purpose (temperature control precision of traditional chromatograph box is at 1 ℃ usually) of adjustment temperature, and this makes and all can't satisfy intimate harsh index request aspect versatility and to many modern analytical techniques application scenario that reappearance is had relatively high expectations.
Summary of the invention
The technical issues that need to address of the present invention just are to overcome in existing traditional miniature chromatograph box application technology temperature and control inexact defective, a kind of novel portable minisize chromatograph box is provided, it has integrated, microminiaturized, general and modularization, the heat-insulating property excellence, characteristics such as lifting/lowering temperature speed is fast, temperature control precision height.
For addressing the above problem, the present invention adopts following technical scheme:
Minisize chromatographic column box with high precision temperature control system of the present invention, comprise casing, be arranged on capillary column heating skeleton and the capillary column that is wrapped on the skeleton in the casing, be arranged on the heating arrangement and the accurate thermal resistance of inboard wall of skeleton, be arranged on the outer temperature control system of casing, described capillary column heating skeleton adopts metal simple-substance or metal alloy compositions, capillary column adopts quartz material, described heating arrangement is flexible electrical heating film or the infrared ray heating film that is coated on the inboard wall of skeleton, described temperature control system comprises temperature control modules, the signal input part of accurate thermal resistance and temperature control modules is connected, the temperature control modules output terminal is connected with isolated form single phase ac regulation module, one end of isolated form single phase ac regulation module output terminal is connected with heating arrangement, and the other end of isolated form single phase ac regulation module output terminal connects the input power supply.
Skeleton of the present invention adopts hydronalium.
Skeleton of the present invention is cylindrical shape or cylindrical or sphere shape.Preferably, be cylindrical shape, drum diameter 60mm～120mm, cylinder heights are 40mm～100mm, wall thickness 0.2mm～3mm.
Be provided with the heat conduction cushion between capillary column of the present invention and the skeleton, capillary column closely is wrapped on the skeleton with the curvature of minimum, and it is that 1 meter～60 meters, arrangement mode are for closely arranging or being spaced that capillary column twines total length.
Flexible electrical heating film of the present invention is formed as major insulation body and alloy resistance wire or the set of Alloy Foil circuit by resistant to elevated temperatures fibre reinforced materials, and described major insulation is silicon rubber, and described alloy is a nickel-chrome.
Electrical-heating film applied thickness of the present invention is 1mm～4mm, and coating method is whole stickup, spraying.
Accurate thermal resistance of the present invention adopts platinum resistance temperature measurement element, with vacuum-deposited thin film technique platinum is splashed on the ceramic substrate, fixing with the glass sintering material lead-in wire, make thin-film component through laser resistor trimming again, miniature platinum thermal resistance sensing probe directly is fixed on the almag heating skeleton top layer by the surface-welding technology.
Temperature control modules of the present invention has PID adjusting control, fuzzy control and the self-adaptation adjusting control function of regulating.
Isolated form single phase ac regulation module of the present invention serves as synchronous with the electrical network phase place, when the size that changes Control current was 4～20mA, the inner trigger pulse that just produces 0 °～180 ° of relative line voltages was isolated by photoelectricity, output terminal just triggers corresponding controllable silicon conducting, realizes pressure regulation.
Be provided with a pair of axial control fan and heat-insulation system in the casing of the present invention.Described heat-insulation system adopts the ceramic fiber cotton material, and the high temperature inorganic glue by can be anti-500 ℃ sticks on inwall around the post case with it.
Casing external dimensions of the present invention is high in 80mm～160mm*80mm～160mm*80mm～160mm for the wide * of long *.
Principle of work of the present invention is:
The skeleton of chromatograph box of the present invention inside uses the magnalium heating material to make, and capillary column is wrapped on the skeleton, directly capillary column is conducted heating by the flexible electrical heating film of combining closely.Again by thermal resistance with the temperature sensing of heating to the signal input part of temperature control modules, adjust control by temperature control modules.Then, the temperature control modules output terminal changes Control current, makes isolated form single phase ac regulation module trigger corresponding controllable silicon conducting, thereby reaches the purpose of phase-shift voltage regulating, adjustment temperature.Adopt a pair of axial control fan to auxiliary lifting/lowering temperature control of pneumatic blending and cabinet insulation simultaneously, realize fast, non-overshoot and precise dose control.
Skeleton of the present invention adopts magnesium-aluminium alloy material, and its coefficient of heat conductivity is high nearly 2 times than aluminum, and thermal expansivity and intensity all will be got well than aluminum.Simultaneously, the protection oxide film of the colourless fine and close corrosion resistance of one deck is arranged in air, the conduction, the heat conductivility excellence, be heated evenly, good heat dissipation is easily processed, shock-resistant.
Capillary chromatographic column of the present invention is a quartz material, by adopting the heat conduction cushion, curvature with minimum closely is wrapped on the skeleton, the thermal expansion character that has solved (180 ℃) skeleton under hot environment may cause closely being wrapped in the problem that the quartz material capillary chromatographic column on the skeleton produces fracture and damages, and such as the problem of multiple factors such as thermal expansion, the rate of heat addition, thermal uniformity and wide temperature range (room temperature～200 ℃).
Flexible electrical heating film of the present invention, the soft electrical heating equipment that it adopts the silicon rubber high temperature resistant, that insulating property are good, intensity is good, resistant to elevated temperatures fibre reinforced materials and alloy resistance wire or the set of Alloy Foil circuit to form, it is high temperature resistant, insulating property are good, intensity is high, the efficiency of heating surface is high and heating power can be adjusted.Heating film can change according to the heating object geometric configuration simultaneously, has effectively improved the homogeneity of heating.Accurate thermal resistance of the present invention adopts platinum resistance temperature measurement element, with vacuum-deposited thin film technique platinum is splashed on the ceramic substrate, fixing with the glass sintering material lead-in wire, make thin-film component through laser resistor trimming again, by the surface-welding technology miniature platinum thermal resistance sensing probe directly is fixed on the heating skeleton top layer, becomes reconciled the response time to obtain high measuring accuracy.
Temperature controller of the present invention has various control function: PID and regulates control, and fuzzy the adjusting controlled, and self-adaptation is regulated control etc.The present invention controls temperature range room temperature～200 ℃, control accuracy ± 0.1 ℃ (annotate: traditional miniature chromatograph box temperature control precision only is ± 1 ℃).
Isolated form single phase ac regulation module of the present invention serves as synchronous with the electrical network phase place, when the size (4～20mA) that changes Control current, the inner trigger pulse that just produces 0 °～180 ° of relative line voltages, isolate by photoelectricity, output terminal just triggers corresponding controllable silicon conducting, thereby reaches the purpose of pressure regulation.
The present invention assists lifting/lowering temperature control fan system, at the problem that often produces toning in multistage falls the temperature programme process fast, utilizes a pair of axial control fan to pneumatic blending, realizes the accurate control that temperature is auxiliary.
Heat-insulation system of the present invention, adopt the ceramic fiber cotton material, high temperature inorganic glue by can be anti-500 ℃ sticks on inwall around the post case with it, and a good temperature environment and insulating power are provided, and this improvement and control effect to integral post oven temperature, degree characteristic is very favourable.
Conventional chromatogram post case external physical dimensions is about 300mm*300mm*300mm (the wide * height of long *), and the minimum external physical dimensions of casing of the present invention is about 80mm*80mm*80mm (the wide * height of long *), has reduced box sizes greatly, reaches microminiaturized purpose.
Beneficial effect of the present invention:
The temperature control model that the present invention adopts reaches 5 rank temperature programmes, utilize temperature control modules control isolated form single phase ac regulation module and auxiliary lifting/lowering temperature control fan part, have the heating with radiating rate fast, control accuracy is high, temperature overshot is less, especially heating material environmental protection good characteristics such as (environmental protection characteristic of heating material require more and more higher in the world), at the Gneral analysis instrument, especially in Modern Small, field instrumentation and hand-held analyzer device, have purposes and application prospect quite widely, have remarkable economical and social benefit.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Among the figure:
1, casing 2, capillary column heat skeleton 3, are wrapped in the capillary column on the skeleton
4, heating arrangement 5, accurate thermal resistance
6, temperature control modules 7, isolated form single phase ac regulation module
8, a pair of axial control fan 9, heat-insulation system
Embodiment
Embodiment 1
As shown in Figure 1, Minisize chromatographic column box with high precision temperature control system of the present invention, comprise casing 1, described casing external dimensions is high in 80mm*80mm*80mm for the wide * of long *, be arranged on capillary column heating skeleton 2 and the capillary column 3 that is wrapped on the skeleton in the casing, be arranged on the heating arrangement 4 and the accurate thermal resistance 5 of inboard wall of skeleton, be arranged on the outer temperature control system of casing.Described capillary column heating skeleton adopts hydronalium, skeleton is cylindrical, body diameter 60mm, cylinder height are 60mm, the capillary column adopting quartz glass, by adopting the heat conduction cushion, curvature with minimum closely is wrapped on the skeleton, and it is that 1 meter, arrangement mode are for closely arranging that capillary column twines total length.Described heating arrangement is the silicon rubber flexible electrical heating film that is coated on the inboard wall of skeleton, is formed as major insulation body and alloy resistance wire or the set of Alloy Foil circuit by resistant to elevated temperatures fibre reinforced materials, and described major insulation is silicon rubber, and described alloy is a nickel-chrome.Described electrical-heating film applied thickness is 4mm, and coating method is whole the stickup.Described accurate thermal resistance adopts platinum resistance temperature measurement element, with vacuum-deposited thin film technique platinum is splashed on the ceramic substrate, fixing with the glass sintering material lead-in wire, make thin-film component through laser resistor trimming again, miniature platinum thermal resistance sensing probe directly is fixed on the heating skeleton top layer by the surface-welding technology.Described temperature control system comprises temperature control modules 6, the signal input part of accurate thermal resistance and temperature control modules is connected, the temperature control modules output terminal is connected with isolated form single phase ac regulation module 7, one end of isolated form single phase ac regulation module output terminal is connected with heating arrangement, and the other end of isolated form single phase ac regulation module output terminal connects the input power supply.
Temperature control modules of the present invention has PID adjusting control, fuzzy control and the self-adaptation adjusting control function of regulating.
Isolated form single phase ac regulation module of the present invention serves as synchronous with the electrical network phase place, (4～20mA), the inner trigger pulse that just produces 0 °～180 ° of relative line voltages is isolated by photoelectricity when the size that changes Control current, output terminal just triggers corresponding controllable silicon conducting, realizes pressure regulation.
Be provided with a pair of axial control fan 8 and heat-insulation system 9 in the casing of the present invention.
Heat-insulation system of the present invention adopts the ceramic fiber cotton material, and the high temperature inorganic glue by can be anti-500 ℃ sticks on inwall around the casing with it.
Embodiment 2
As shown in Figure 1, Minisize chromatographic column box with high precision temperature control system of the present invention, comprise casing 1, described casing external dimensions is high in 160mm*160mm*160mm for the wide * of long *, be arranged on capillary column heating skeleton 2 and the capillary column 3 that is wrapped on the skeleton in the casing, be arranged on the heating arrangement 4 and the accurate thermal resistance 5 of inboard wall of skeleton, be arranged on the outer temperature control system of casing.Described capillary column heating skeleton adopts hydronalium, and skeleton is a cylindrical shape, and drum diameter 120mm, cylinder heights are 90mm, wall thickness 1mm, and the capillary column adopting quartz glass by adopting the heat conduction cushion, closely is wrapped on the skeleton with the curvature of minimum.It is that 60 meters, arrangement mode are for tightly being spaced that capillary column twines total length.Described heating arrangement is the silicon rubber flexible electrical heating film that is coated on the inboard wall of skeleton, and the electrical-heating film applied thickness is 2mm, and coating method is whole the stickup.
Described accurate thermal resistance adopts platinum resistance temperature measurement element, with vacuum-deposited thin film technique platinum is splashed on the ceramic substrate, fixing with the glass sintering material lead-in wire, make thin-film component through laser resistor trimming again, miniature platinum thermal resistance sensing probe directly is fixed on the heating skeleton top layer by the surface-welding technology.Described temperature control system comprises temperature control modules 6, the signal input part of accurate thermal resistance and temperature control modules is connected, the temperature control modules output terminal is connected with isolated form single phase ac regulation module 7, one end of isolated form single phase ac regulation module output terminal is connected with heating arrangement, and the other end of isolated form single phase ac regulation module output terminal connects the input power supply.
Temperature control modules of the present invention has PID adjusting control, fuzzy control and the self-adaptation adjusting control function of regulating.
Isolated form single phase ac regulation module of the present invention serves as synchronous with the electrical network phase place, (4～20mA), the inner trigger pulse that just produces 0 °～180 ° of relative line voltages is isolated by photoelectricity when the size that changes Control current, output terminal just triggers corresponding controllable silicon conducting, realizes pressure regulation.
Be provided with a pair of axial control fan 8 and heat-insulation system 9 in the casing of the present invention.
Heat-insulation system of the present invention adopts the ceramic fiber cotton material, and the high temperature inorganic glue by can be anti-500 ℃ sticks on inwall around the casing with it.
Embodiment 3
As shown in Figure 1, Minisize chromatographic column box with high precision temperature control system of the present invention, comprise casing 1, described casing external dimensions is high in 120mm*120mm*120mm for the wide * of long *, be arranged on capillary column heating skeleton 2 and the capillary column 3 that is wrapped on the skeleton in the casing, be arranged on the heating arrangement 4 and the accurate thermal resistance 5 of inboard wall of skeleton, be arranged on the outer temperature control system of casing.Described capillary column heating skeleton adopts hydronalium, and skeleton is a cylindrical shape, and drum diameter 100mm, cylinder heights are 70mm, wall thickness 0.2mm, and the capillary column adopting quartz glass by adopting the heat conduction cushion, closely is wrapped on the skeleton with the curvature of minimum.It is that 30 meters, arrangement mode are for being spaced that capillary column twines total length.Described heating arrangement is the silicon rubber flexible electrical heating film that is coated on the inboard wall of skeleton, and the electrical-heating film applied thickness is 1mm, and coating method is an integral spray.
Described accurate thermal resistance adopts platinum resistance temperature measurement element, with vacuum-deposited thin film technique platinum is splashed on the ceramic substrate, fixing with the glass sintering material lead-in wire, make thin-film component through laser resistor trimming again, miniature platinum thermal resistance sensing probe directly is fixed on the heating skeleton top layer by the surface-welding technology.Described temperature control system comprises temperature control modules 6, the signal input part of accurate thermal resistance and temperature control modules is connected, the temperature control modules output terminal is connected with isolated form single phase ac regulation module 7, one end of isolated form single phase ac regulation module output terminal is connected with heating arrangement, and the other end of isolated form single phase ac regulation module output terminal connects the input power supply.
Temperature control modules of the present invention has PID adjusting control, fuzzy control and the self-adaptation adjusting control function of regulating.
Isolated form single phase ac regulation module of the present invention serves as synchronous with the electrical network phase place, (4～20mA), the inner trigger pulse that just produces 0 °～180 ° of relative line voltages is isolated by photoelectricity when the size that changes Control current, output terminal just triggers corresponding controllable silicon conducting, realizes pressure regulation.
Be provided with a pair of axial control fan 8 and heat-insulation system 9 in the casing of the present invention.
Heat-insulation system of the present invention adopts the ceramic fiber cotton material, and the high temperature inorganic glue by can be anti-500 ℃ sticks on inwall around the casing with it.
Claims (14)
1, a kind of Minisize chromatographic column box with high precision temperature control system, comprise casing, be arranged on capillary column heating skeleton and the capillary column that is wrapped on the skeleton in the casing, be arranged on the heating arrangement and the accurate thermal resistance of inboard wall of skeleton, be arranged on the outer temperature control system of casing, it is characterized in that described capillary column heating skeleton adopts metal simple-substance or metal alloy compositions, capillary column adopts quartz material, described heating arrangement is flexible electrical heating film or the infrared ray heating film that is coated on the inboard wall of skeleton, described temperature control system comprises temperature control modules, the signal input part of accurate thermal resistance and temperature control modules is connected, the temperature control modules output terminal is connected with isolated form single phase ac regulation module, one end of isolated form single phase ac regulation module output terminal is connected with heating arrangement, and the other end of isolated form single phase ac regulation module output terminal connects the input power supply.
2, Minisize chromatographic column box with high precision temperature control system as claimed in claim 1 is characterized in that: described skeleton adopts hydronalium.
3, Minisize chromatographic column box with high precision temperature control system as claimed in claim 2 is characterized in that: described skeleton is cylindrical shape or cylindrical or sphere shape.
4, as the arbitrary described Minisize chromatographic column box with high precision temperature control system of claim 1-3, it is characterized in that: described heating skeleton is a cylindrical shape, and drum diameter 60mm～120mm, cylinder heights are 40mm～100mm, wall thickness 0.2mm～3mm.
5, Minisize chromatographic column box with high precision temperature control system as claimed in claim 4 is characterized in that: described heating skeleton is square, and it is high in 80mm～160mm*80mm～160mm*80mm～160mm that it is of a size of the wide * of long *.
6, Minisize chromatographic column box with high precision temperature control system as claimed in claim 1, it is characterized in that: be provided with the heat conduction cushion between capillary column and the skeleton, capillary column closely is wrapped on the skeleton with the curvature of minimum, and it is that 1 meter～60 meters, arrangement mode are for closely arranging or being spaced that capillary column twines total length.
7, Minisize chromatographic column box with high precision temperature control system as claimed in claim 1, it is characterized in that: described flexible electrical heating film is formed as major insulation body and alloy resistance wire or the set of Alloy Foil circuit by resistant to elevated temperatures fibre reinforced materials, described major insulation is silicon rubber, and described alloy is a nickel-chrome.
8, Minisize chromatographic column box with high precision temperature control system as claimed in claim 1 is characterized in that: described electrical-heating film applied thickness is 1mm～4mm, and coating method is whole stickup, spraying.
9, Minisize chromatographic column box with high precision temperature control system as claimed in claim 1, it is characterized in that: described accurate thermal resistance adopts platinum resistance temperature measurement element, with vacuum-deposited thin film technique platinum is splashed on the ceramic substrate, fixing with the glass sintering material lead-in wire, make thin-film component through laser resistor trimming again, miniature platinum thermal resistance sensing probe directly is fixed on the heating skeleton top layer by the surface-welding technology.
10, Minisize chromatographic column box with high precision temperature control system as claimed in claim 1 is characterized in that: described temperature control modules has PID adjusting control, fuzzy control and the self-adaptation adjusting control function of regulating.
11, Minisize chromatographic column box with high precision temperature control system as claimed in claim 1, it is characterized in that: described isolated form single phase ac regulation module serves as synchronous with the electrical network phase place, when the size that changes Control current is 4～20mA, the inner trigger pulse that just produces 0 °～180 ° of relative line voltages, isolate by photoelectricity, output terminal just triggers corresponding controllable silicon conducting, realizes pressure regulation.
12, as the arbitrary described Minisize chromatographic column box with high precision temperature control system of claim 1-11, it is characterized in that: be provided with a pair of axial control fan and heat-insulation system in the described casing.
13, Minisize chromatographic column box with high precision temperature control system as claimed in claim 12 is characterized in that: described heat-insulation system adopts the ceramic fiber cotton material, and the high temperature inorganic glue by can be anti-500 ℃ sticks on inwall around the post case with it.
14, as the arbitrary described Minisize chromatographic column box with high precision temperature control system of claim 1-13, it is characterized in that: described casing external dimensions is high in 80mm～160mm*80mm～160mm*80mm～160mm for the wide * of long *.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100749270A CN100432669C (en) | 2005-06-06 | 2005-06-06 | Minisize chromatographic column box with high precision temperature control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100749270A CN100432669C (en) | 2005-06-06 | 2005-06-06 | Minisize chromatographic column box with high precision temperature control system |
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| Publication Number | Publication Date |
|---|---|
| CN1877319A true CN1877319A (en) | 2006-12-13 |
| CN100432669C CN100432669C (en) | 2008-11-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100749270A Expired - Fee Related CN100432669C (en) | 2005-06-06 | 2005-06-06 | Minisize chromatographic column box with high precision temperature control system |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102901785A (en) * | 2012-10-22 | 2013-01-30 | 南通大学 | Temperature uniformizer integrating multiple chromatographic columns with different lengths and diameters |
| CN102914611A (en) * | 2012-10-12 | 2013-02-06 | 南通大学 | Temperature balancer with multiple chromatographic columns integrated |
| CN103018380A (en) * | 2012-11-27 | 2013-04-03 | 张勇 | Voltage-adjustable directly-heated type chromatographic column |
| CN103308632A (en) * | 2013-05-20 | 2013-09-18 | 国家电网公司 | Temperature control box for online chromatographic analyzer |
| 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 |
| CN104407080A (en) * | 2014-12-08 | 2015-03-11 | 同方威视技术股份有限公司 | Portable gas chromatographic capillary column module |
| CN104737012A (en) * | 2012-10-25 | 2015-06-24 | 株式会社岛津制作所 | Gas chromatograph device |
| CN106706817A (en) * | 2017-03-15 | 2017-05-24 | 厦门宜柱科技有限公司 | Capillary liquid chromatographic column temperature control device |
| CN114594196A (en) * | 2022-03-08 | 2022-06-07 | 青岛盛瀚色谱技术有限公司 | Independent column incubator for double-fan liquid chromatography |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2049503U (en) * | 1989-04-10 | 1989-12-20 | 广东省商贸家用电器厂 | Electrothermal appliance with voltage and temp. regulating and constant temp. functions |
| CN2116215U (en) * | 1992-03-24 | 1992-09-16 | 上海市徐汇区中心医院 | Liquid phase chromatograph column constant temperature cabinet |
| JP2000111536A (en) * | 1998-09-30 | 2000-04-21 | Shimadzu Corp | Column oven for liquid chromatograph |
| US6093921A (en) * | 1999-03-04 | 2000-07-25 | Mt Systems, Llc | Microwave heating apparatus for gas chromatographic columns |
| CN2515675Y (en) * | 2001-03-22 | 2002-10-09 | 海城市石油化工仪器厂 | Ring chromatographic column box |
| JP4188206B2 (en) * | 2003-11-04 | 2008-11-26 | 株式会社日立ハイテクノロジーズ | Column oven for liquid chromatography |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102914611A (en) * | 2012-10-12 | 2013-02-06 | 南通大学 | Temperature balancer with multiple chromatographic columns integrated |
| CN102914611B (en) * | 2012-10-12 | 2013-12-11 | 南通大学 | Temperature balancer with multiple chromatographic columns integrated |
| CN102901785A (en) * | 2012-10-22 | 2013-01-30 | 南通大学 | Temperature uniformizer integrating multiple chromatographic columns with different lengths and diameters |
| CN102901785B (en) * | 2012-10-22 | 2013-12-04 | 南通大学 | Temperature uniformizer integrating multiple chromatographic columns with different lengths and diameters |
| CN104737012A (en) * | 2012-10-25 | 2015-06-24 | 株式会社岛津制作所 | Gas chromatograph device |
| CN103018380A (en) * | 2012-11-27 | 2013-04-03 | 张勇 | Voltage-adjustable directly-heated type chromatographic column |
| 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 |
| CN103308632A (en) * | 2013-05-20 | 2013-09-18 | 国家电网公司 | Temperature control box for online chromatographic analyzer |
| CN104407080A (en) * | 2014-12-08 | 2015-03-11 | 同方威视技术股份有限公司 | Portable gas chromatographic capillary column module |
| CN104407080B (en) * | 2014-12-08 | 2017-06-27 | 同方威视技术股份有限公司 | portable gas chromatography capillary column module |
| CN106706817A (en) * | 2017-03-15 | 2017-05-24 | 厦门宜柱科技有限公司 | Capillary liquid chromatographic column temperature control device |
| CN114594196A (en) * | 2022-03-08 | 2022-06-07 | 青岛盛瀚色谱技术有限公司 | Independent column incubator for double-fan liquid chromatography |
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| CB03 | Change of inventor or designer information |
Inventor after: Chen Lian Inventor after: Zhang Xixian Inventor after: Fang Xiang Inventor after: Zhang Fan Inventor before: Zhang Xixian Inventor before: Fang Xiang Inventor before: Zhang Fan Inventor before: Chen Lian |
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| COR | Change of bibliographic data | ||
| 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: 20081112 |