CN204405611U - Dual column system gas chromatograph - Google Patents
Dual column system gas chromatograph Download PDFInfo
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- CN204405611U CN204405611U CN201520026945.0U CN201520026945U CN204405611U CN 204405611 U CN204405611 U CN 204405611U CN 201520026945 U CN201520026945 U CN 201520026945U CN 204405611 U CN204405611 U CN 204405611U
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- transfer valve
- number interface
- chromatographic column
- valve
- gas chromatograph
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Abstract
The utility model is a kind of dual column system gas chromatograph, it is characterized in that: the first transfer valve of described gas chromatograph is provided with the first quantity tube and the second quantity tube; Second transfer valve is provided with the first chromatographic column and the second chromatographic column; 3rd transfer valve is provided with the first needle-valve, the second needle-valve and PDD helium ionization detector.The utility model adopts two root chromatogram columns, by realizing characteristic research to chromatographic column and contrast experiment better to the independent analysis of two root chromatogram columns and common analysis.
Description
Technical field
The utility model relates to a kind of gas chromatograph, a kind of dual column system gas chromatograph is particularly disclosed, two root chromatogram columns are adopted to the analysis of gas products, realizes characteristic research to chromatographic column and contrast experiment better by the independent analysis of two root chromatogram columns and common analysis.
Background technology
Along with the high speed development of industry, the application of various gas is also more extensive.Increasing gas needs to carry out analysis and detects.Piece-rate system is the core of gas chromatography, forms primarily of chromatographic column.For different gas analyses, need different chromatographic columns to be separated.The analytical approach of current much gas is international and domesticly have many imperfections, and a lot of special gas does not have good chromatographic column to be separated yet.Seek corresponding chromatographic column and analytical approach imperative.
Summary of the invention
The purpose of this utility model addresses the deficiencies of the prior art, design a kind of dual column system gas chromatograph, adopt two root chromatogram columns, a chromatograph can realize quickly and easily to the independent analysis of the first chromatographic column, the second chromatographic column and the common analysis of two chromatographic columns.The utility model, by studying the independence of different chromatographic column and the analysis that be combined with each other, intuitively bright and clearly can find out that various chromatographic column is to the separating effect of gas and contrast effect, to realize the characteristic research to chromatographic column better.
The utility model is achieved in that a kind of dual column system gas chromatograph, it is characterized in that: the first transfer valve of described gas chromatograph is provided with the first quantity tube and the second quantity tube; Second transfer valve is provided with the first chromatographic column and the second chromatographic column; 3rd transfer valve is provided with the first needle-valve, the second needle-valve and PDD helium ionization detector.
As preferably, the first carrier gas gas circuit is connected with the 8. number interface of the first transfer valve, the second carrier gas gas circuit is connected with a 4. number interface for the first transfer valve; Sample inlet is connected with the 2. number interface of the first transfer valve, sample export is connected with a 1. number interface for the first transfer valve; First quantity tube one end is connected with the 10. number interface of the first transfer valve, the other end is connected with a 7. number interface for the first transfer valve; Second quantity tube one end is connected with the 3. number interface of the first transfer valve, the other end is connected with a 6. number interface for the first transfer valve; 5. number interface of the first transfer valve is connected with the 6. number interface pipeline of the second transfer valve, the 9. number interface of the first transfer valve is connected with a 2. number interface pipeline for the second transfer valve.
As preferably, the 1. number interface of the second described transfer valve is connected with first chromatographic column one end, the 4. number interface of the second transfer valve is connected with the first chromatographic column other end; 5. number interface of the second transfer valve is connected with second chromatographic column one end, and the 6. number interface of the 3rd transfer valve is connected with the second chromatographic column other end; 3. number interface of the second transfer valve is connected with a 2. number interface pipeline for the 3rd transfer valve.
As preferably, the 3. number interface of the 3rd described transfer valve is connected with the first needle-valve, the 5. number interface of the 3rd transfer valve is connected with the second needle-valve; 1. number interface of the 3rd transfer valve is connected with PDD helium ionization detector.
As preferably, the first described transfer valve is ten logically purge pneumatic transfer valve, and the second described transfer valve and the 3rd transfer valve are six logically purge pneumatic transfer valve.
The beneficial effects of the utility model are: the utility model utilizes the first transfer valve, the second transfer valve, the switching of the 3rd transfer valve changes system gas circuit, realize the independent analysis to the first chromatographic column and the second chromatographic column, also can be the common analysis to both, the difference that the independent analysis of the first chromatographic column or the second chromatographic column of can visually see and the first chromatographic column and the second chromatographic column are analyzed jointly also can be the contrast experiment doing the first chromatographic column and the second chromatographic column.Also can be analyzed gas like multiple types by the utility model in actual applications.
Accompanying drawing explanation
Fig. 1 is sample introduction analysis process schematic diagram of the present utility model.
Fig. 2 is the schematic flow sheet that in the utility model, analytical gas enters the first chromatographic column and the second chromatographic column.
Fig. 3 is the schematic flow sheet that the utility model analytical gas enters separately the second chromatographic column.
Fig. 4 is the schematic flow sheet that the utility model analytical gas enters separately the first chromatographic column.
In figure: 1, the first transfer valve; 2, the second transfer valve; 3, the 3rd transfer valve; 4, the first carrier gas; 5, the second carrier gas; 6, the first quantity tube; 7, the second quantity tube; 8, sample inlet; 9, sample export; 10, PDD helium ionization detector; 11, the first chromatographic column; 12, the second chromatographic column; 13, the first needle-valve; 14, the second needle-valve.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment, the utility model is described in further detail.
With reference to the accompanying drawings 1 ~ 4, a kind of dual column system gas chromatograph of the utility model, its first transfer valve 1 is provided with the first quantity tube 6 and the second quantity tube 7; Second transfer valve 2 is provided with the first chromatographic column 11 and the second chromatographic column 12; 3rd transfer valve 3 is provided with the first needle-valve 13, second needle-valve 14 and PDD helium ionization detector 10.First carrier gas 4 gas circuit is connected with the 8. number interface of the first transfer valve 1, the second carrier gas 5 gas circuit is connected with a 4. number interface for the first transfer valve 1; Sample inlet 8 is connected with the 2. number interface of the first transfer valve 1, sample export 9 is connected with a 1. number interface for the first transfer valve 1; First quantity tube 6 one end is connected with the 10. number interface of the first transfer valve 1, the other end is connected with a 7. number interface for the first transfer valve 1; Second quantity tube 7 one end is connected with the 3. number interface of the first transfer valve 1, the other end is connected with a 6. number interface for the first transfer valve 1; 5. number interface of the first transfer valve 1 is connected with the 6. number interface pipeline of the second transfer valve 2, the 9. number interface of the first transfer valve 1 is connected with a 2. number interface pipeline for the second transfer valve (2).1. number interface of the second transfer valve 2 is connected with first chromatographic column 11 one end, the 4. number interface of the second transfer valve 2 is connected with first chromatographic column 11 other end; 5. number interface of the second transfer valve 2 is connected with second chromatographic column 12 one end, and the 6. number interface of the 3rd transfer valve 3 is connected with second chromatographic column 12 other end; 3. number interface of the second transfer valve 2 is connected with a 2. number interface pipeline for the 3rd transfer valve 3.3. number interface of the 3rd transfer valve 3 is connected with the first needle-valve 13, the 5. number interface of the 3rd transfer valve 3 is connected with the second needle-valve 14; 1. number interface of the 3rd transfer valve 3 is connected with PDD helium ionization detector 10.First transfer valve 1 is the pneumatic transfer valve of ten logical purgings, and the second transfer valve 2 and the 3rd transfer valve 3 are the pneumatic transfer valve of six logical purgings.
Embodiment:
The first chromatographic column in the utility model adopts Porapak Q chromatographic column, and the second chromatographic column adopts 5A molecular sieve chromatography post, and analyze the pure helium standard model of a bottle height, impurity is H
2, O
2, N
2, CH
4, CO, impurity concentration is at 5ppm.
Concrete sample introduction and the course of work as follows:
A: as shown in Figure 1, sample inlet 8 accesses standard model, and the first transfer valve 1 starts sample introduction.Switch the second transfer valve 2, as shown in Figure 3, the second carrier gas 5 enters 5A molecular sieve chromatography post with the sample of the second quantity tube 7, then enters PDD helium ionization detector, realizes the analysis for the second chromatographic column simultaneously.
B: as shown in Figure 1, sample inlet 8 accesses standard model, and the first transfer valve 1 starts sample introduction.As shown in Figure 2, the second carrier gas 5 is introduced into Porapak Q chromatographic column with the sample of the second quantity tube 7, then enters 5A molecular sieve chromatography post, finally enters PDD helium ionization detector, realizes for the first chromatographic column and the common analysis of the second chromatographic column.
C: as shown in Figure 1, sample inlet 8 accesses standard model, and the first transfer valve 1 starts sample introduction.As shown in Figure 4, the first carrier gas 4 enters Porapak Q chromatographic column with the sample of the first quantity tube 6, then enters PDD helium ionization detector, realizes the analysis for the first chromatographic column.
The above is simple embodiment of the present utility model, and protection of the present utility model is as the criterion described in the utility model claim, and the equivalent variations that all foundation the utility model are done and replacement, all should belong to the protection domain of the utility model patent.
Claims (4)
1. a dual column system gas chromatograph, is characterized in that: first transfer valve (1) of described gas chromatograph is provided with the first quantity tube (6) and the second quantity tube (7); Second transfer valve (2) is provided with the first chromatographic column (11) and the second chromatographic column (12); 3rd transfer valve (3) is provided with the first needle-valve (13), the second needle-valve (14) and PDD helium ionization detector (10); First carrier gas (4) gas circuit is connected with the 8. number interface of the first transfer valve (1), the second carrier gas (5) gas circuit is connected with a 4. number interface for the first transfer valve (1); Sample inlet (8) is connected with the 2. number interface of the first transfer valve (1), sample export (9) is connected with a 1. number interface for the first transfer valve (1); First quantity tube (6) one end is connected with the 10. number interface of the first transfer valve (1), the other end is connected with a 7. number interface for the first transfer valve (1); Second quantity tube (7) one end is connected with the 3. number interface of the first transfer valve (1), the other end is connected with a 6. number interface for the first transfer valve (1); 5. number interface of the first transfer valve (1) is connected with the 6. number interface pipeline of the second transfer valve (2), the 9. number interface of the first transfer valve (1) is connected with a 2. number interface pipeline for the second transfer valve (2).
2. according to the dual column system gas chromatograph described in claim 1, it is characterized in that: the 1. number interface of described the second transfer valve (2) is connected with the first chromatographic column (11) one end, the 4. number interface of the second transfer valve (2) is connected with the first chromatographic column (11) other end; 5. number interface of the second transfer valve (2) is connected with the second chromatographic column (12) one end, and the 6. number interface of the 3rd transfer valve (3) is connected with the second chromatographic column (12) other end; 3. number interface of the second transfer valve (2) is connected with a 2. number interface pipeline for the 3rd transfer valve (3).
3. according to the dual column system gas chromatograph described in claim 1, it is characterized in that: the 3. number interface of the 3rd described transfer valve (3) is connected with the first needle-valve (13), the 5. number interface of the 3rd transfer valve (3) is connected with the second needle-valve (14); 1. number interface of the 3rd transfer valve (3) is connected with PDD helium ionization detector (10).
4. according to the dual column system gas chromatograph described in claim 1, it is characterized in that: described the first transfer valve (1) is the pneumatic transfer valve of ten logical purgings, described the second transfer valve (2) and the 3rd transfer valve (3) are the pneumatic transfer valve of six logical purgings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520026945.0U CN204405611U (en) | 2015-01-15 | 2015-01-15 | Dual column system gas chromatograph |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520026945.0U CN204405611U (en) | 2015-01-15 | 2015-01-15 | Dual column system gas chromatograph |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204405611U true CN204405611U (en) | 2015-06-17 |
Family
ID=53429461
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520026945.0U Withdrawn - After Issue CN204405611U (en) | 2015-01-15 | 2015-01-15 | Dual column system gas chromatograph |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204405611U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104597156A (en) * | 2015-01-15 | 2015-05-06 | 上海华爱色谱分析技术有限公司 | Two-column system gas chromatograph |
| CN108982724A (en) * | 2018-08-13 | 2018-12-11 | 朗析仪器（上海）有限公司 | A kind of in-line analyzer for perfluor iodoethane trace impurity oxygen analysis |
-
2015
- 2015-01-15 CN CN201520026945.0U patent/CN204405611U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104597156A (en) * | 2015-01-15 | 2015-05-06 | 上海华爱色谱分析技术有限公司 | Two-column system gas chromatograph |
| CN104597156B (en) * | 2015-01-15 | 2016-05-04 | 上海华爱色谱分析技术有限公司 | Dual column system gas chromatograph |
| CN108982724A (en) * | 2018-08-13 | 2018-12-11 | 朗析仪器（上海）有限公司 | A kind of in-line analyzer for perfluor iodoethane trace impurity oxygen analysis |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150617 Effective date of abandoning: 20160504 |
|
| AV01 | Patent right actively abandoned |