CN106483206A - Gas chromatograph - Google Patents
Gas chromatograph Download PDFInfo
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- CN106483206A CN106483206A CN201510864080.XA CN201510864080A CN106483206A CN 106483206 A CN106483206 A CN 106483206A CN 201510864080 A CN201510864080 A CN 201510864080A CN 106483206 A CN106483206 A CN 106483206A
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- framework
- detector
- temperature regulation
- regulation section
- calorstat
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
- G01N30/02—Column chromatography
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
- G01N30/02—Column chromatography
- G01N2030/022—Column chromatography characterised by the kind of separation mechanism
- G01N2030/025—Gas chromatography
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- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
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Abstract
The present invention provides a kind of gas chromatograph, and this gas chromatograph can carry out high-precision process with substrate to the detection signal of detector using detector.Gas chromatograph (1) includes：To carrying out thermoregulator temperature regulation section (13) and the detector that connects to detector (6) in calorstat (3) with substrate (16).Temperature regulation section (13) is configured at the back side (2B) side in framework (2), and detector substrate (16) is configured at front surface (2C) side in framework (2).That is, the position not affected by the heating of temperature regulation section (13) in framework (2) for detector substrate (16) configuration.Thereby, it is possible to prevent detector substrate (16) to be subject to the impact of the heating of temperature regulation section (13).As a result, can to carry out high-precision process to the detection signal of detector (6) using detector substrate (16).
Description
Technical field
The present invention relates to a kind of gas chromatograph, for sample is directed into the chromatographic column being configured in calorstat, by detector
Detection in separated sample constituents during chromatographic column, thus being analyzed.
Background technology
In the past it is known that a kind of gas chromatograph, this gas chromatograph includes framework, configuration is held in framework and by chromatographic column
It is contained in the calorstat of inside and be configured at the detector in framework.In gas chromatograph, heat chromatograph using calorstat
Post.And, sample is imported in the chromatographic column that has been heated, by detector detection due to having been separated through chromatographic column
Sample constituents (see, for example, following patent documentations 1).
In addition, in this gas chromatograph, generally, it is configured with framework to carrying out thermoregulator temperature in calorstat
Adjustment portion and the detector substrate for being processed to the detection signal carrying out self-detector.And, in gas chromatograph
In analysis during, temperature adjustment is carried out in calorstat by temperature regulation section, while by detector substrate to inspection
The detection signal surveying device is processed.
Prior art literature
Patent documentation
Patent documentation 1：Japanese Patent No. 5206567 publication
Content of the invention
Invention problem to be solved
In existing gas chromatograph as above, generally, temperature regulation section comprise due to SSR (solid-state relay), three
The part that end bi-directional thyristor switch element etc. carries out action and generates heat.In addition, temperature regulation section and detector substrate via
Interposer etc. is connected with main substrate respectively, and close to each other.Therefore, because temperature regulation section heating, detector use sometimes
Substrate can become high temperature, in this case, sometimes in the detection signal to detector being carried out with substrate using detector
Not good situation can be produced in process.
The present invention exactly in view of above-mentioned practical situation and complete, its object is to provide a kind of gas chromatograph, can utilize
Detector substrate, carries out high-precision process to the detection signal of detector.
Means for solving the problems
(1) gas chromatograph of the present invention is used for by sample is directed into chromatographic column in calorstat for the configuration, using inspection
Survey device detecting in the sample constituents having been separated during described chromatographic column, thus being analyzed, including framework,
Fan, temperature regulation section and detector substrate.Described calorstat, described chromatographic column and described detector are held by described framework
It is contained in inside, and overleaf side is formed with air vent.Rear side in described framework for the described fan arrangement, makes described frame
Internal air is discharged from described air vent.Described temperature regulation section is configured at the rear side in described framework, and to described perseverance
Carry out temperature adjustment in incubator.Described detector substrate configures not generated heat by described temperature regulation section in described framework
Impact position, and be connected with described detector.
According to this structure, being prevented from detector substrate is affected by the heating of temperature regulation section.
Therefore, it is possible to high-precision process be carried out to the detection signal of detector using detector with substrate.
Further, since fan, air vent and temperature regulation section are all configured at the rear side in framework, it is possible to efficiently right
Temperature regulation section is cooled down.
Therefore, it is possible to reduce the impact of the heating of temperature regulation section.
As a result, the detection signal of detector can be carried out with the process of higher precision using detector with substrate.
(2) in addition, described detector substrate can also be configured at the front-surface side in described framework.
According to this structure, because temperature regulation section is configured at rear side in framework, detector substrate configures in framework
In front-surface side, it is possible to keeping the interval of larger temperature regulation section and detector substrate.
Affected by the heating of temperature regulation section therefore, it is possible to be reliably prevented detector substrate.
(3) alternatively, it is also possible to form space between the back side of described calorstat and described framework.Described fan and described
Temperature regulation section can also configure in described space.
According to this structure, temperature regulation section can be configured using the free space between calorstat and the back side of framework.
In addition, being prevented from configuring temperature regulation section in the position blocking air flow in framework.
Therefore, it is possible to, while effectively utilizing the free space in framework, reduce the impact of the heating of temperature regulation section.
(4) in addition, described gas chromatograph can also include motor.Described motor configurations in described space and drive institute
State fan.Described temperature regulation section can also be configured at the side of described motor.
According to this structure, can effectively utilize to configure temperature adjustment for the space configuring needed for motor in framework
Portion.
(5) in addition, described gas chromatograph can also include flow-control portion.Described flow-control portion is configured at described sky
Between in upside, the flow of the gas being directed into described chromatographic column is controlled.Described temperature regulation section can also be configured at
Downside in described space.
According to this structure, efficiently temperature regulation section can be configured in the position different from flow-control portion in framework.
The effect of invention
According to the present invention, affected by the heating of temperature regulation section due to being prevented from detector substrate, so energy
Enough utilize detector substrate, high-precision process is carried out to the detection signal of detector.
Brief description
Fig. 1 shows the diagrammatic top profile of the configuration example of the gas chromatograph of one embodiment of the present invention.
Fig. 2 shows the side cutaway view of the gas chromatograph of Fig. 1.
Specific embodiment
1. the overall structure of gas chromatograph
Fig. 1 shows the diagrammatic top profile of the configuration example of gas chromatograph 1 of one embodiment of the present invention.Figure
The side cutaway view of 2 gas chromatograpies 1 showing Fig. 1.
Gas chromatograph 1 includes：Framework 2, calorstat 3, chromatographic column 4, heater 5, detector 6, sample introduction part
7th, flow-control portion 8, motor 9, the 1st fan 11, the 2nd fan 12 and temperature regulation section 13.
Framework 2 is formed as box shape.It is formed with multiple blow vents 21, air vent 22 and opening 23 in framework 2.
Each blow vent 21 is formed at the bottom surface 2A of framework 2.Each blow vent 21 runs through the bottom surface 2A of framework 2 in above-below direction.
Multiple blow vents 21 are configured at each end at the left and right directions both ends of the bottom surface 2A of framework 2, and along the longitudinal direction mutually every
Open compartment of terrain configuration.
Air vent 22 is formed at the central part of the back side 2B of framework 2.Air vent 22 runs through the back of the body of framework 2 in fore-and-aft direction
Face 2B.
As shown in figure 1, opening 23 is formed at the front surface 2C of framework 2.Opening 23 is before fore-and-aft direction runs through framework 2
Surface 2C.Opening 23 is closed by door 14 to be opened/closed.In addition, the left and right directions of the front surface 2C in framework 2
One end (right part) be configured with operating portion 15.
As shown in Figures 1 and 2, calorstat 3 is contained in framework 2.Calorstat 3 is formed as box shape.Calorstat 3 quilt
It is positioned over the central part of the bottom surface 2A of framework 2, and between the back side 2B of framework 2, front surface 2C, side 2D are spaced one from
Every ground configuration.
As shown in Fig. 2 chromatographic column 4 is configured in calorstat 3.Chromatographic column 4 is made up of such as capillary chromatographic column.
Heater 5 is configured in calorstat 3, and configures at the rear of chromatographic column 4.
As shown in Figures 1 and 2, detector 6 configures on calorstat 3.Detector 6 is connected to one end of chromatographic column 4.
Detector 6 is for example made up of hydrogen flame ionization type detector or heat conductivity type detector etc..Detector 6 is successively to from chromatograph
The each sample constituents included in carrier gas that post 4 imports are detected.Detector 6 is connected with detector substrate 16.
Detector substrate 16 is arranged on the side of the calorstat 3 near detector 6.Detector substrate 16 is for right
Carry out the substrate that the detection signal of self-detector 6 is processed, for example, AD converter, amplifier etc. are installed.
Sample introduction part 7 is configured on calorstat 3.Sample introduction part 7 is connected to the other end of chromatographic column 4.Carry out
When analysis, from flow-control portion 8, carrier gas is supplied to sample introduction part 7, gasified in sample introduction part 7
Sample is fed in chromatographic column 4 together with carrier gas.
Flow-control portion 8 configures in framework 2.Specifically, flow-control portion 8 is arranged on the upper of the back side 2B of framework 2
Portion, configures the rear in calorstat 3 at spaced intervals.That is, flow-control portion 8 be configured at calorstat 3 in framework 2 with
The upside in space 24 between the 2B of the back side.Flow-control portion 8 include such as AFC (Advanced Flow Controller,
Senior flow controller), APC (Auto Pressure Controller, automatic pressure controller), and with sample import
Portion 7 connects.
Motor 9 is arranged on the central part at the back side of calorstat 3.That is, motor 9 configures the upper of the space 24 in framework 2
Lower direction central part and left and right directions central part.
As shown in Fig. 2 the 1st fan 11 is contained in calorstat 3.1st fan 11 configures at the rear of heater 5.
It is configured to give the driving force of motor 9 to the 1st fan 11.
As shown in Figures 1 and 2, the 2nd fan 12 is configured at the space 24 in framework 2, configures in aerofluxuss at spaced intervals
The front of mouth 22.It is configured to give the driving force of motor 9 to the 2nd fan 12.That is, driven by motor 9, the 2nd wind
Fan 12 is rotated together with the 1st fan 11.
Temperature regulation section 13 is configured at the downside in the space 24 in framework 2.Temperature regulation section 13 includes：By in substrate
Upper installation SSR (solid-state relay), TRIAC etc. and constitute main part 17 and be installed on master
The heat sink 18 of body 17.
Although not shown, but main part 17 is connected with heater 5 and motor 9, and they are controlled.That is, using temperature
The control of the main part 17 of degree adjustment portion 13, carries out action by heater 5 and motor 9, to carry out in calorstat 3
Heating, in addition, be stirred to the air in calorstat 3 by the 1st fan 11.Thus, in the temperature in calorstat 3
Rise and keep uniform.So, temperature regulation section 13 (main part 17) carries out temperature adjustment in calorstat 3.In gas
In chromatography 1, by the action of temperature regulation section 13 (main part 17), it is able to carry out in calorstat 3
Temperature maintains the constant constant temperature being analyzed analysis or so that the temperature in calorstat 3 is increased at leisure while carrying out
Intensification analysis of analysis etc..
Heat sink 18 is formed as side-looking L-shaped, and covers bottom surface and the back side of main part 17.Heat sink 18 is by heat conduction system
The high material of number is constituted.Heat sink 18 is connected to the bottom surface 2A of framework 2.
Additionally, although not shown, but possesses the main substrate that the molar behavior to gas chromatograph 1 is controlled in framework 2.
Main substrate is the structure comprising CPU (Central Processing Unit, CPU), by detector substrate
16 and temperature regulation section 13 (main part 17) via wiring be connected with this main substrate.
When sample being analyzed in gas chromatograph 1, carry out temperature with by temperature regulation section 13 in calorstat 3
While degree is adjusted, using the sample injection sample introduction part 7 as analysis object.And, sample is in sample introduction part 7
Gasified.
During analysis, carrier gas is supplied to sample introduction part 7 from flow-control portion 8.
The sample having been gasified in sample introduction part 7 is fed to (referring to Fig. 2) in chromatographic column 4 together with carrier gas.Examination
Each sample constituents included in sample are separated during in chromatographic column 4, and are imported into detector 6 successively.
And, in detector 6, each sample constituents included in the carrier gas that chromatographic column 4 imports are detected successively.Separately
Outward, with substrate 16, the detection signal carrying out self-detector 6 is amplified waiting using detector and processes, according to this detection signal,
Gas chromatogram is generated at main substrate.During analysis, in temperature regulation section 13, the heat warp that produced by main part 17
Radiated by heat sink 18.
2. the opposite configuration of temperature regulation section and detector substrate
In gas chromatograph 1, in framework 2, temperature regulation section 13 is configured at back side 2B together with the 2nd fan 12
Side.Additionally, in framework 2, back side 2B side refers to the position more rearward compared with the central authorities in framework 2.Temperature adjustment
Portion 13, in the way of opposed with the back side of calorstat 3, configures the rear in calorstat 3 at spaced intervals.Temperature regulation section
13 sides being configured at motor 9.
Additionally, the side of motor 9 top, lower section, left, right and the region between them that refer to comprise motor 9
The peripheral region of motor 9, in the present embodiment, in the right of motor 9 and lower section is configured with temperature regulation section 13.
In addition, in framework 2, detector substrate 16 is configured at front surface 2C side.Additionally, in framework 2, front table
Face 2C side refers to the position closer to the front compared with the central authorities in framework 2.That is, maintain larger detector substrate 16 He
The interval of temperature regulation section 13.In other words, detector substrate 16 configures and be not subject to temperature regulation section 13 (main part 17)
The impact of heating position.
3. the air flow in framework
In gas chromatograph 1, if by the control of temperature regulation section 13, by driving, the 2nd fan 12 revolves motor 9
If turning, then extraneous gas is introduced in framework 2 with the gap of door 14 from multiple blow vents 21 and opening 23, and
And the air in framework 2 is discharged from air vent 22.Thus, in framework 2, the air from front direction rear will be produced
Flowing.Specifically, the air in framework 2 above calorstat 3 and side from front direction rear flow after, around to
The rear (entering space 24) of calorstat 3, thereafter, from air vent 22 is discharged to framework 2.Now, due to sky
Space between the top of temperature regulation section 13 and rear and temperature regulation section 13 and calorstat 3 for the gas, temperature adjustment
Portion 13 is cooled.Temperature regulation section 13, with respect to detector substrate 16, is configured at the downstream flowing through the air in framework 2
Side.
4. action effect
(1) in the present embodiment, as shown in Figures 1 and 2, detector substrate 16 configures not being subject in framework 2
The position of the impact of the heating of temperature regulation section 13.That is, it is prevented from detector substrate 16 and be subject to temperature regulation section 13
Heating impact.
Therefore, by detector substrate 16, can accurately the detection signal of detector 6 be processed.
Further, since the 2nd fan 12, air vent 22 and temperature regulation section 13 are all configured at the back side 2B side in framework 2,
It is possible to efficiently cooling down to temperature regulation section 13.
Therefore, it is possible to reduce the impact of the heating of temperature regulation section 13.
As a result, passing through detector substrate 16, can more accurately the detection signal of detector 6 be processed.
(2) in addition, in the present embodiment, as shown in Figures 1 and 2, because temperature regulation section 13 is joined in framework 2
It is placed in back side 2B side, detector substrate 16 is configured at front surface 2C side in framework 2, it is possible to keeping larger
The temperature regulation section 13 and detector interval of substrate 16.
Affected by the heating of temperature regulation section 13 therefore, it is possible to be reliably prevented detector substrate 16.
(3) in addition, in the present embodiment, as shown in Figures 1 and 2, temperature regulation section 13 and the 2nd fan 12 1
Play configuration in the space 24 between the back side 2B of calorstat 3 and framework 2.
It is that space 24 configures temperature tune therefore, it is possible to the free space between the back side 2B using calorstat 3 and framework 2
Section portion 13.
In addition, being prevented from configuring temperature regulation section 13 in the position blocking air flow in framework 2.
Therefore, it is possible to, while effectively utilizing the free space in framework 2, reduce the heating of temperature regulation section 13
Impact.
(4) in addition, in the present embodiment, as shown in Figures 1 and 2, motor 9 configures in calorstat 3 and framework 2
Back side 2B between space 24 in, calorstat 3 is configured at the side of motor 9.
Therefore, it is possible to, in framework 2, effectively utilize to configure temperature regulation section 13 for the space configuring needed for motor 9.
(5) in addition, in the present embodiment, as shown in Figures 1 and 2, flow-control portion 8 be configured at calorstat 3 with
The upside in space 24 between the back side 2B of framework 2, temperature regulation section 13 is configured at the downside in space 24.
Therefore, it is possible to efficiently temperature regulation section 13 be configured in the position different from flow-control portion 8 in framework 2.
5. variation
In the above-described embodiment, it is set to air vent 22 to be formed at the back side 2B of framework 2 to be illustrated, but air vent
As long as 22 are formed at the back side 2B side in framework 2.For example, air vent 22 can also be formed at the bottom surface of framework 2
The rear portion of 2A or be formed at framework 2 side 2D rear portion.
In addition, in the above-described embodiment although being set to temperature regulation section 13 to configure the rear (space 24) in calorstat 3
To be illustrated, as long as but temperature regulation section 13 configuration does not interfere with the position of detector substrate 16 in its heating.
For example, temperature regulation section 13 can also be installed on as the side of calorstat 3 and be provided with detector substrate 16
The side of side opposite side.In this case, as long as the back side 2B side that temperature regulation section 13 is configured in framework 2 is
Can.
In addition, driving both the 1st fan 11 and the 2nd fan 12 although being set to motor 9 in the above-described embodiment
It is illustrated, but be not limited to this structure it is also possible to be separately arranged to drive the 1st fan 11 and the 2nd respectively
The motor of fan 12.
In addition, in the above-described embodiment although being set to air from multiple blow vents 21 and opening 23 and door 14
Gap flows in framework 2 being illustrated, but is not limited to this structure or air from being formed at framework
2 other openings, gap etc. flow into the structure in framework 2.
Symbol description
1 gas chromatograph
2 frameworks
The 2B back side
2C front surface
3 calorstats
4 chromatographic columns
6 detectors
8 flow-control portions
9 motors
12 the 2nd fans
13 temperature regulation section
16 detector substrates
22 air vents
24 spaces.
Claims (5)
1. a kind of gas chromatograph, it is used for for sample being directed into chromatographic column in calorstat for the configuration, is examined using detector
Survey in the sample constituents having been separated during described chromatographic column, thus being analyzed, the spy of described gas chromatograph
Levy and be, including：
Framework, described calorstat, described chromatographic column and described detector are contained in inside by it, and overleaf side is formed with aerofluxuss
Mouthful；
Fan, it is configured at the rear side in described framework, so that the air in described framework is discharged from described air vent；
Temperature regulation section, it is configured at the rear side in described framework, carries out temperature adjustment in described calorstat；And
Detector substrate, its configuration position not affected by the heating of described temperature regulation section in described framework, and
It is connected with described detector.
2. gas chromatograph according to claim 1 it is characterised in that
Described detector substrate is configured at the front-surface side in described framework.
3. the gas chromatograph according to claims 1 or 2 it is characterised in that
It is formed with space between the back side of described calorstat and described framework；
Described fan and described temperature regulation section configure in described space.
4. gas chromatograph according to claim 3 it is characterised in that
Also include motor, this motor configurations and drives described fan in described space,
Described temperature regulation section is configured at the side of described motor.
5. the gas chromatograph according to claim 3 or 4 it is characterised in that
Also include flow-control portion, this flow-control portion is configured at the upside in described space, and to being directed into described chromatograph
The flow of the gas of post is controlled,
Described temperature regulation section is configured at the downside in described space.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2015-004292 | 2015-08-25 | ||
| JP2015004292U JP3200787U (en) | 2015-08-25 | 2015-08-25 | Gas chromatograph |
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| Publication Number | Publication Date |
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| CN106483206A true CN106483206A (en) | 2017-03-08 |
| CN106483206B CN106483206B (en) | 2019-01-11 |
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| JP (1) | JP3200787U (en) |
| CN (1) | CN106483206B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110621994A (en) * | 2017-05-09 | 2019-12-27 | 株式会社岛津制作所 | Gas chromatograph |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6791017B2 (en) * | 2017-06-02 | 2020-11-25 | 株式会社島津製作所 | Gas chromatograph |
| CN111060636A (en) * | 2018-10-17 | 2020-04-24 | 株式会社岛津制作所 | Temperature control analysis device and online analysis system provided with same |
| JP7275948B2 (en) * | 2019-07-11 | 2023-05-18 | 株式会社島津製作所 | Analysis equipment |
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| Publication number | Publication date |
|---|---|
| JP3200787U (en) | 2015-11-05 |
| CN106483206B (en) | 2019-01-11 |
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