CN106198820A - Can intuitively show the gas chromatograph of sample introduction - Google Patents
Can intuitively show the gas chromatograph of sample introduction Download PDFInfo
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- CN106198820A CN106198820A CN201610736790.9A CN201610736790A CN106198820A CN 106198820 A CN106198820 A CN 106198820A CN 201610736790 A CN201610736790 A CN 201610736790A CN 106198820 A CN106198820 A CN 106198820A
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- sample
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- chromatograph
- sampling device
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Abstract
The present invention provides the gas chromatograph that can intuitively show sample introduction, including chromatograph body, this chromatograph body is provided with injection port and outlet, described outlet is connected by the first carrier gas line aobvious sampling device, described aobvious sampling device includes the anti-suck bottle being connected with the first carrier gas line, this anti-suck bottle connects its aobvious sample bottle built with liquid by the second carrier gas line, and this aobvious sample bottle is connected with outlet by the 3rd carrier gas line.This chromatograph is by arranging aobvious sampling device, directly, intuitively can know whether sample comes into instrument, and speed during estimation sample introduction, the sample washing time to quantity tube, the convenient fault got rid of when peak can occurs in instrument simultaneously, and then be conducive to improving the analysis result tested.This chromatograph is additionally provided with sampling device at injection port, effectively reduces the working time, improves work efficiency, reduces human cost, avoids instrumental pollution simultaneously, extends the service life of instrument, and practicality is good, should be widely promoted.
Description
Technical field
The present invention relates to a kind of gas chromatograph, be specifically related to a kind of gas chromatograph that can intuitively show sample introduction.
Background technology
Gas chromatograph, be a kind of component each in mixed gas is analyzed detection instrument, be widely used in oil,
The aspects such as chemical industry, biochemistry, medical and health, food industry, environmental protection.Gas chromatograph is to utilize chromatographic column first to be divided by mixture
From, then utilize detector to detect separated component out successively, it is except in addition to qualitatively and quantitatively analyzing, moreover it is possible to measure sample
Product are at physicochemical constants such as fixing partition coefficient, activity coefficient, molecular weight and the specific surface areas gone up mutually.Chromatographic use is advised
Journey, first must be passed through the carrier gas (nitrogen) of constant pressure in instrument during start, be then turned on power supply and be passed through other two auxiliary
Gas (hydrogen, air), heats up each for instrument detecting system until each system keeps constant temperature, just can carry out gas sample detection work.
The structure of existing gas chromatograph, as shown in Figure 4, including chromatograph body, described chromatograph body includes analyzing
Unit and display unit, described analytic unit includes source of the gas and controls metering device, sampling device, thermostat and chromatographic column, institute
Stating sampling device and include that six-way valve, described display unit include comparator and autographic apparatus, it is all spiral shell that sampling device is provided with
Injection port that stricture of vagina connects and outlet, there is following defect in such structure: one, and the outlet of chromatograph body simply sets
Put threaded port, be not provided with relevant to enter the display device after instrument by response sample, can not directly, intuitively know sample
Whether product come into instrument, can not reflect speed during sample introduction, and the washing time that sample is to quantity tube, additionally,
If peak fault can not occur in instrument, just cannot judge fault or the fault of instrument itself of injector, increase maintenance difficulty
Degree, reduces work efficiency；Its two, injection port connects and has the screw thread sample feeding pipe of diameter 2mm～3mm, and sample is to use gas
The injectors such as bladders or liquid sample steel cylinder carry out sample introduction, be difficult to be connected, cause operation between screw thread sample feeding pipe with sample introduction container
Difficulty, extends the time that staff carries out testing, and reduces work efficiency, thus increases cost of human resources, additionally, chromatograph
Body is not provided with filtering the impurity such as the water in sample or acid & alkali liquid, impurity enter after chromatograph body to chromatographic column,
The pollution of the parts such as quantity tube, results even in the inefficacy of chromatographic column or even scraps, and increases the maintenance cost of instrument.
Summary of the invention
The deficiency existed for prior art, the present invention provides the gas chromatograph that can intuitively show sample introduction, this chromatograph
Outlet connects and has aobvious sampling device, can directly, intuitively know whether sample comes into chromatograph body, and estimate into
Speed during sample, the sample washing time to quantity tube, the convenient fault got rid of when peak can not occur in chromatograph body, has simultaneously
It is beneficial to improve the analysis result of experiment.
In order to achieve the above object, the technical scheme that the present invention takes:
Can intuitively show the gas chromatograph of sample introduction, including chromatograph body, be located at the intrinsic six-way valve of chromatograph, should
Chromatograph body is provided with injection port and outlet, and the one of described six-way valve connects hole has aobvious sample to fill by the first carrier gas line connection
Putting, described aobvious sampling device includes the anti-suck bottle being connected with the first carrier gas line, and this anti-suck bottle connects it by the second carrier gas line
Built with the aobvious sample bottle of liquid, this aobvious sample bottle is communicated with air after being connected with described outlet by the 3rd carrier gas line.
As optimal technical scheme, in order to make sample feeding pipe quickly be connected with injector, effectively reduce the operating time, it is provided that work
Make efficiency, reduce cost of human resources, remove the impurity such as the water in sample, solid particle, alkali liquor simultaneously, extend the use of instrument
In the life-span, described injection port is connected by sample feeding pipe has a sampling device, described sampling device to include hollow and transparent sample introduction
Bottle, is provided with in described sample injection bottle and can remove the absorbent cotton of the impurity such as water, alkali liquor in sample, one end of described sample injection bottle and sample feeding pipe
Connect, the other end is connected with the sample introduction union joint being made up of acid and alkali-resistance material, and the junction, two ends of sample injection bottle is equipped with sealing
Part, is provided with connecting tube between described sample injection bottle and sample introduction union joint and this connecting tube runs through whole sample introduction union joint, described sample introduction
Union joint arranges in cone-shaped structure and round nose is connected with connecting tube.
Compared with prior art, the invention have the benefit that
1, setting comprises the aobvious sampling device showing sample bottle equipped with liquid, directly, intuitively can know whether sample comes into instrument
Device, and speed during estimation sample introduction, the sample washing time to quantity tube, simultaneously convenient get rid of when peak can not occur in instrument
Fault, and then be conducive to improving the analysis result of experiment.
2, the sampling device comprising coniform sample introduction union joint is set, changes the structure of traditional screw thread sample feeding pipe, logical
Cross sample introduction union joint to be connected with injector quickly and easily, effectively reduce the operating time, it is provided that work efficiency, be beneficial to reduce people
Power resources costs；The sample injection bottle comprising absorbent cotton is set simultaneously, can effectively remove the water in sample, solid particle, alkali liquor etc. miscellaneous
Matter, effectively prevents the parts such as chromatographic column, quantity tube to be corroded, and extends the service life of instrument.
Accompanying drawing explanation
With specific embodiment, the present invention is described in further detail below in conjunction with the accompanying drawings.
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the structural representation of aobvious sampling device；
Fig. 3 is the structural representation of sampling device；
Fig. 4 is the structural representation of existing gas chromatograph；
Drawing reference numeral: 1, chromatograph body, 1-1, injection port, 1-2, outlet, 1-3, six-way valve, 1-4, analytic unit,
1-5, display unit, 2, sample feeding pipe, 3, sampling device, 3-1, sample injection bottle, 3-2, absorbent cotton, 3-3, sample introduction union joint, 3-4, close
Sealing, 3-5, connecting tube, 3-6, nut, 4, aobvious sampling device, 4-1, the first carrier gas line, 4-2, anti-suck bottle, 4-3, the second carrier gas
Line, 4-4, aobvious sample bottle, 4-5, liquid, 4-6, the 3rd carrier gas line.
Detailed description of the invention
Propose one specific embodiment of the present invention as shown in Figure 1, can intuitively show the gas chromatograph of sample introduction, including chromatograph
Instrument body 1, described chromatograph body 1 includes that analytic unit 1-4 and display unit 1-5, described analytic unit 1-4 include gas
Source and control metering device, sampling device, thermostat and chromatographic column, described sampling device includes six-way valve 1-3, described six-way valve
1-3 is provided with six and connects hole, and two of which connects to connect between hole quantity tube, and the sampling device of described analytic unit 1-4 sets
There are injection port 1-1 and outlet 1-2, the one of described six-way valve 1-3 to connect hole and have aobvious sampling device 4 by the first carrier gas line 4-1 connection,
One end of described first carrier gas line 4-1 connects with the one of six-way valve 1-3 that hole is connected, the other end extends the appearance of chromatograph body 1
Face, described aobvious sampling device 4 includes being positioned at, with the first carrier gas line 4-1, the anti-suck bottle that the outer surface port of chromatograph body 1 is connected
4-2, and the port of the first carrier gas line 4-1 is positioned at anti-suck bottle 4-2 inner bottom part, this anti-suck bottle 4-2 passes through the second carrier gas line 4-3
Connect it and be preferably transparency liquid built with the aobvious sample bottle 4-4, described liquid 4-5 of liquid 4-5, be typically chosen distilled water and maybe can remove
Removing to discharge the sodium hydroxide solution that concentration is 10% of sour gas, it is distilled water that the present embodiment arranges liquid 4-5, and aobvious sample bottle
Distilled water in 4-4 accounts for the 50% of original volume, and one end of described second carrier gas line 4-3 is positioned at the top of anti-suck bottle 4-1, another
One end is positioned at the bottom of aobvious sample bottle 4-4, described aobvious sample bottle 4-4 by the 3rd carrier gas line 4-6 be connected with outlet 1-2 after with air
Communicating, described anti-suck bottle 4-2, aobvious sample bottle 4-4 are all sealed glass jars, and bottle cap is all the sealing lid of PP material, interior siliceous
Glue sealing gasket, described first carrier gas line 4-1, the second carrier gas line 4-3, the 3rd carrier gas line 4-6 are all the polytetrafluoroethyl-nes of a diameter of 3mm
Alkene carrier gas line；If after having sample to enter in the sampling device of chromatograph body 1, sample first passes through anti-down after six-way valve 1-3
Inhaling bottle 4-5 to arrive in aobvious sample bottle 4-2 again, make distilled water produce bubble, otherwise bubble-free produces, and can directly, intuitively know that sample is
No come into chromatograph body 1, speed when the intensive number produced according to bubble and size can be evaluated whether sample introduction, sample pair
The washing time of quantity tube, the simultaneously convenient fault got rid of when peak can not occur in chromatograph body 1, and then be conducive to improving experiment
Analysis result.
Described injection port 1-1 is connected by sample feeding pipe 2 sampling device 3, and this sample feeding pipe 2 connects hole with six-way valve 1-3 mono-
Connect；Described sampling device 3 includes the hollow that is connected with sample feeding pipe 1 and transparent sample injection bottle 3-1, is further ensured that sample feeding pipe 2
Being connected with firm between sample injection bottle 3-1, sample feeding pipe 2 is provided with the nut 3-6 for firm effect, and the present embodiment arranges sample introduction
Bottle 3-1 is made up of lucite, is provided with impurity such as can removing water in sample, solid particle, alkali liquor in described sample injection bottle 3-1
Absorbent cotton 3-2, one end of described sample injection bottle 3-1 is connected with sample feeding pipe 2, the other end and the sample introduction be made up of acid and alkali-resistance material even
Joint 3-3 connects, and the present embodiment selects sample introduction union joint 3-3 to be made up of elastomeric material, and the two ends of sample injection bottle 3-1 connect
Place is equipped with sealing member 3-4, and it is white steel screw that the present embodiment arranges sealing member 3-4, and the sample injection bottle 3-1 made with lucite
Connect by thread seal is firm, be provided with conveying sample between described sample injection bottle 3-1 and sample introduction union joint 3-3 to sample injection bottle 3-1
Connecting tube 3-5 and this connecting tube 3-5 run through whole sample introduction union joint 3-3, described sample introduction union joint 3-3 arrange in coniform
Structure and round nose are connected with connecting tube 3-5, i.e. the width of sample introduction union joint 3-3 flows to become larger setting along sample, protects
Card coincide with the interior button of injector, can convenient, fast connect, it is contemplated that when sample is by connecting tube 3-5, has connecting tube 3-5
There is certain impulse force, it is ensured that connecting tube 3-5 and sample introduction union joint 3-3 are firm to be connected, in described connecting tube 3-5 and be positioned at sample injection bottle
The nut 3-6 playing fixation it is provided with between 3-1 and sample introduction union joint 3-3.
When the present invention uses: according to the rule of operation of gas chromatograph, first pass through six-way valve 1-3 mono-connect hole be passed through constant temperature carry
Gas, until unit reaches temperature constant state in chromatograph body 1, then is carried out quantity tube by sample by sampling device 3
Rinsing, period sample enters aobvious sampling device by exhaust end, according to whether produce bubble to determine whether that sample enters in instrument,
The size produced according to bubble and closeness can determine whether the flow velocity of sample, and the time according to producing bubble can determine whether that sample is to quantitatively
The washing time of pipe, to be rinsed after, continue sample introduction experiment Analysis.
Certainly, the most simply combine accompanying drawing the preferred embodiments of the disclosure to be described in detail, not with this
Limit the practical range of the present invention, the equivalence change that all principles under this invention, structure and structure are made, all should be covered by this
In the protection domain of invention.
Claims (2)
1. can intuitively show the gas chromatograph of sample introduction, including chromatograph body (1), the clematis stem be located in chromatograph body (1)
Valve (1-3), this chromatograph body (1) is provided with injection port (1-1) and outlet (1-2), it is characterised in that: described six-way valve
(1-3) one connects hole has aobvious sampling device (4), described aobvious sampling device (4) to include by the first carrier gas line (4-1) connection and the first load
The anti-suck bottle (4-2) that gas line (4-1) connects, this anti-suck bottle (4-2) connects it built with liquid by the second carrier gas line (4-3)
The aobvious sample bottle (4-4) of body (4-5), after this aobvious sample bottle (4-4) is connected with described outlet (1-2) by the 3rd carrier gas line (4-6)
Communicate with air.
The gas chromatograph that can intuitively show sample introduction the most according to claim 1, it is characterised in that: described injection port (1-
1) sampling device (3), described sampling device (3) is had to include hollow and transparent sample injection bottle (3-by sample feeding pipe (2) connection
1), being provided with absorbent cotton (3-2) in described sample injection bottle (3-1), one end of described sample injection bottle (3-1) is connected with sample feeding pipe (2), another
End is connected with the sample introduction union joint (3-3) being made up of acid and alkali-resistance material, and the junction, two ends of sample injection bottle (3-1) is equipped with sealing
Part (3-4), is provided with connecting tube (3-5) between described sample injection bottle (3-1) and sample introduction union joint (3-3) and this connecting tube (3-5) is passed through
Wearing whole sample introduction union joint (3-3), described sample introduction union joint (3-3) arranges in cone-shaped structure and round nose and connecting tube (3-
5) connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610736790.9A CN106198820A (en) | 2016-08-26 | 2016-08-26 | Can intuitively show the gas chromatograph of sample introduction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610736790.9A CN106198820A (en) | 2016-08-26 | 2016-08-26 | Can intuitively show the gas chromatograph of sample introduction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106198820A true CN106198820A (en) | 2016-12-07 |
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ID=57525989
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610736790.9A Pending CN106198820A (en) | 2016-08-26 | 2016-08-26 | Can intuitively show the gas chromatograph of sample introduction |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115902053A (en) * | 2023-03-10 | 2023-04-04 | 常州磐诺仪器有限公司 | Chromatographic system and method for directly measuring NMHC and characteristic factors in environment |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3537823A (en) * | 1968-06-03 | 1970-11-03 | William B Innes | Gas testing process for smog forming constituents |
| US20110036142A1 (en) * | 2006-10-05 | 2011-02-17 | Watson Gary W | Precise droplet injection for calibrating a gas chromatography instrument |
| CN205027711U (en) * | 2015-08-25 | 2016-02-10 | 滕州市滕海分析仪器有限公司 | Gaseous sampling device of six -way valve |
| CN105374265A (en) * | 2015-12-15 | 2016-03-02 | 徐州医学院 | High efficiency liquid chromatograph experiment teaching model and experiment method |
| CN205109100U (en) * | 2015-11-04 | 2016-03-30 | 重庆科技学院 | Visual chromatographic fractionation equipment |
-
2016
- 2016-08-26 CN CN201610736790.9A patent/CN106198820A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3537823A (en) * | 1968-06-03 | 1970-11-03 | William B Innes | Gas testing process for smog forming constituents |
| US20110036142A1 (en) * | 2006-10-05 | 2011-02-17 | Watson Gary W | Precise droplet injection for calibrating a gas chromatography instrument |
| CN205027711U (en) * | 2015-08-25 | 2016-02-10 | 滕州市滕海分析仪器有限公司 | Gaseous sampling device of six -way valve |
| CN205109100U (en) * | 2015-11-04 | 2016-03-30 | 重庆科技学院 | Visual chromatographic fractionation equipment |
| CN105374265A (en) * | 2015-12-15 | 2016-03-02 | 徐州医学院 | High efficiency liquid chromatograph experiment teaching model and experiment method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115902053A (en) * | 2023-03-10 | 2023-04-04 | 常州磐诺仪器有限公司 | Chromatographic system and method for directly measuring NMHC and characteristic factors in environment |
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Application publication date: 20161207 |