CN201993263U - Preparative gas chromatography device for preparing volatile monomer component - Google Patents
Preparative gas chromatography device for preparing volatile monomer component Download PDFInfo
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- CN201993263U CN201993263U CN2011200676020U CN201120067602U CN201993263U CN 201993263 U CN201993263 U CN 201993263U CN 2011200676020 U CN2011200676020 U CN 2011200676020U CN 201120067602 U CN201120067602 U CN 201120067602U CN 201993263 U CN201993263 U CN 201993263U
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Abstract
The utility model discloses a preparative gas chromatography device for preparing a volatile monomer component. The preparative gas chromatography device comprises a column temperature oven, as well as a sample inlet, a vaporizing chamber, a separating system and a detecting system which are communicated in sequence, wherein the vaporizing chamber and the separating system are arranged inside the column temperature oven. The preparative gas chromatography device also comprises a distributary three-way valve which is arranged inside the column temperature oven, wherein the inlet of the distributary three-way valve is communicated with the outlet of the separating system; one outlet of the distributary three-way valve is communicated with the detecting device; and a sample collecting device is communicated with another outlet of the distributary three-way valve. When the preparative gas chromatography device is in use, the sample is introduced into the vaporizing chamber, then the mixed gas in the vaporizing chamber is introduced into the separating system by carrier gas, various components are layered by the different retention properties of the components and then introduced out in sequence, and later the components are respectively introduced into the detecting device and the sample collecting device, therefore the detection and the preparation of the sample are realized simultaneously; and the temperature of the separating system is adjusted by the column temperature oven, therefore the difficulty in separating the sample with heat instability is lowered. The preparative gas chromatography device can be used for preparing volatile monomer components in large quantity, and the preparative gas chromatography device has a broad application range.
Description
Technical field
The utility model relates to the device that fields such as chemical industry, pharmacy and environmental protection are used for divided gas flow, particularly a kind of preparation type gas phase chromatographic device.
Background technology
At present, preparative liquid chromatography has obtained in the pharmaceuticals industry field using widely, but liquid chromatography is often not competent during isomers in separating bigger material of relevance and complex mixture, and gas chromatography can be good at separating a lot of organic substances, based on above-mentioned advantage, preparation type gas chromatography will have a good prospect in the fractionation field of potpourri.
The characteristics of preparation gas chromatography are the height reappearances with good chromatographic resolution and retention time, and the stalling characteristic of sample is based on vapour pressure, polarity and the space structure of analyte.Though preparation gas chromatography fractionation has not been a new concept, and existingly studies show that the pure compound aspect of using the preparation gas chromatography to obtain the milligram level from complex mixture is very potential, the application of preparation gas chromatography at present remains unchanged very limited.Till now, it only is used to separate alkane, alkene, fatty acid, sterol or palycyclic aromatic in archaeology sample or the environmental sample, for subsequently C14 analyzes or the mensuration of hydrogen isotope ratio (D/H) is prepared.Trace it to its cause, mainly be because there are following shortcomings in it: it is more even to guarantee the distribution of sample in chromatographic column that the bigger sample of quantity is vaporized fully; Pure product after the separation are fewer, collect difficulty; The packing ratio of preparative chromatography post is difficulty; Thermal instability sample separation difficulty is big.
Because the restriction of above-mentioned shortcoming, the application of preparation gas chromatography is confined in the laboratory study at present, commercial preparative gas chromatograph is not arranged as yet or is applied to during factory mass produces, and all do not have simultaneously and detect and the preparation function.
Therefore, need to explore a kind of preparation type gas phase chromatographic device, make it can overcome above-mentioned shortcoming, possess composition detection and specimen preparation function simultaneously, can be applicable to the preparation volatile monomers composition that separates in enormous quantities, expand its range of application.
Summary of the invention
In view of this, the utility model provides a kind of preparation type gas phase chromatographic device that is used to prepare the volatile monomers composition, this device will be sent into pick-up unit and sample collection device respectively from the sample that chromatographic column flows out by T-valve, reach the purpose that to carry out sample detection and preparation simultaneously, make it can be applicable to large batch of separation and prepare the volatile monomers composition.
The preparation type gas phase chromatographic device that is used to prepare the volatile monomers composition of the present utility model, comprise column oven, the injection port, vaporizer, piece-rate system and the pick-up unit that are communicated with successively, described vaporizer and piece-rate system are arranged in the column oven, also comprise the diversion three-way valve that is arranged in the column oven, the inlet of diversion three-way valve is communicated with the outlet of piece-rate system, an outlet of diversion three-way valve is communicated with pick-up unit, is communicated with another outlet of diversion three-way valve to be provided with sample collection device.
Further, two of described diversion three-way valve outlets are respectively arranged with flow-limiting valve;
Further, described pick-up unit is flame ionization detector (FID), mass detector (MSD) or thermal conductivity detector (TCD) (TCD);
Further, the inlet of described pick-up unit is provided with the complemental air inlet that is used to compensate the gas input;
Further, described sample collection device is the solvent capturing device.
The beneficial effects of the utility model: the preparation type gas phase chromatographic device that is used to prepare the volatile monomers composition of the present utility model, comprise column oven, the injection port of Lian Tonging successively, vaporizer, piece-rate system and pick-up unit, described vaporizer and piece-rate system are arranged in the column oven, also comprise the diversion three-way valve that is arranged in the column oven, the inlet of diversion three-way valve is communicated with the outlet of piece-rate system, an outlet of diversion three-way valve is communicated with pick-up unit, be communicated with and be provided with sample collection device with another outlet of diversion three-way valve, during use, sample is imported vaporizer, make the combination gas in the vaporizer import piece-rate system by carrier gas again, making after each component layering by the different retention property of each component derives successively, import pick-up unit and sample collection device respectively, realize sample detection and preparation simultaneously,, reduce the separating difficulty of thermal instability sample by the temperature of column oven adjusting piece-rate system, can be used for preparing in a large number volatile monomers composition, applied range.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further described.
Fig. 1 is a structural representation of the present utility model.
Embodiment
Fig. 1 is a structural representation of the present utility model, as shown in the figure: the preparation type gas phase chromatographic device that is used to prepare the volatile monomers composition of present embodiment, comprise column oven 9, the injection port 1 of Lian Tonging successively, vaporizer 2, piece-rate system 3 and pick-up unit 4, needs according to actual production, can adopt increase type vaporizer to increase the volume of vaporizer, piece-rate system also can adopt the kapillary or the chromatography column of larger caliber, realize a large amount of preparation volatile monomers, described vaporizer 2 and piece-rate system 3 are arranged in the column oven 9, regulate temperature by column oven, reduce the separating difficulty of thermal instability sample, this preparation type gas phase chromatographic device also comprises the diversion three-way valve 5 that is arranged in the column oven 9, the inlet of diversion three-way valve 5 is communicated with the outlet of piece-rate system 3, an outlet of diversion three-way valve 5 is communicated with pick-up unit 4, be communicated with and be provided with sample collection device 6 with another outlet of diversion three-way valve 5, sample gas after will separating by T-valve imports pick-up unit and sample collection device respectively, realizes sample detection and preparation simultaneously.
In the present embodiment, two outlets of described diversion three-way valve 5 are respectively arranged with flow-limiting valve 7, are convenient to control respectively as required the gas that enters detection system and sample collection device and carry out flow.
In the present embodiment, described pick-up unit 4 is flame ionization detector (FID), mass detector (MSD) or thermal conductivity detector (TCD) (TCD), and sensing range is wide, the precision height.
In the present embodiment, the inlet of described pick-up unit 4 is provided with the complemental air inlet 8 that is used to compensate the gas input, when the gas flow rate that flows into pick-up unit is low, needs to insert compensation gas, guarantees normal detection.
In the present embodiment, described sample collection device 6 is the solvent capturing device, can realize efficient collection, and collection process is simple to operate.
Explanation is at last, above embodiment is only unrestricted in order to the explanation the technical solution of the utility model, although the utility model is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement the technical solution of the utility model, and not breaking away from the aim and the scope of technical solutions of the utility model, it all should be encompassed in the middle of the claim scope of the present utility model.
Claims (5)
1. preparation type gas phase chromatographic device that is used to prepare the volatile monomers composition, comprise column oven (9), the injection port of Lian Tonging (1) successively, vaporizer (2), piece-rate system (3) and pick-up unit (4), described vaporizer (2) and piece-rate system (3) are arranged in the column oven (9), it is characterized in that: also comprise the diversion three-way valve (5) that is arranged in the column oven (9), the inlet of diversion three-way valve (5) is communicated with the outlet of piece-rate system (3), an outlet of diversion three-way valve (5) is communicated with pick-up unit (4), is communicated with another outlet of diversion three-way valve (5) to be provided with sample collection device (6).
2. the preparation type gas phase chromatographic device that is used to prepare the volatile monomers composition according to claim 1 is characterized in that: two outlets of described diversion three-way valve (5) are respectively arranged with flow-limiting valve (7).
3. the preparation type gas phase chromatographic device that is used to prepare the volatile monomers composition according to claim 2 is characterized in that: described pick-up unit (4) is flame ionization detector (FID), mass detector (MSD) or thermal conductivity detector (TCD) (TCD).
4. the preparation type gas phase chromatographic device that is used to prepare the volatile monomers composition according to claim 3 is characterized in that: the inlet of described pick-up unit (4) is provided with the complemental air inlet (8) that is used to compensate the gas input.
5. according to any described preparation type gas phase chromatographic device that is used to prepare the volatile monomers composition of claim 1-4, it is characterized in that: described sample collection device (6) is the solvent capturing device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200676020U CN201993263U (en) | 2011-03-15 | 2011-03-15 | Preparative gas chromatography device for preparing volatile monomer component |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011200676020U CN201993263U (en) | 2011-03-15 | 2011-03-15 | Preparative gas chromatography device for preparing volatile monomer component |
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| CN201993263U true CN201993263U (en) | 2011-09-28 |
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| CN2011200676020U Expired - Fee Related CN201993263U (en) | 2011-03-15 | 2011-03-15 | Preparative gas chromatography device for preparing volatile monomer component |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102141488A (en) * | 2011-03-15 | 2011-08-03 | 重庆大学 | Preparative gas-phase chromatograph device for separating and purifying high-boiling-point volatile monomer component |
| CN115219639A (en) * | 2021-04-15 | 2022-10-21 | 中国石油天然气股份有限公司 | System for enriching hydrocarbon gas in slurry gas and using method thereof |
-
2011
- 2011-03-15 CN CN2011200676020U patent/CN201993263U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102141488A (en) * | 2011-03-15 | 2011-08-03 | 重庆大学 | Preparative gas-phase chromatograph device for separating and purifying high-boiling-point volatile monomer component |
| CN115219639A (en) * | 2021-04-15 | 2022-10-21 | 中国石油天然气股份有限公司 | System for enriching hydrocarbon gas in slurry gas and using method thereof |
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| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110928 Termination date: 20140315 |