CN207379989U - A kind of gas-chromatography pyrolysis sampling device - Google Patents
A kind of gas-chromatography pyrolysis sampling device Download PDFInfo
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- CN207379989U CN207379989U CN201721559416.2U CN201721559416U CN207379989U CN 207379989 U CN207379989 U CN 207379989U CN 201721559416 U CN201721559416 U CN 201721559416U CN 207379989 U CN207379989 U CN 207379989U
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- example boat
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- boat
- sampling device
- gas circuit
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Abstract
The utility model discloses a kind of gas-chromatography pyrolysis sampling device, the problems such as it is tediously long to solve existing sample injection method flow, trivial operations, and analysis precision is low.Specifically include heating unit, example boat, example boat sealing mechanism and closed gas circuit；There is sample export and shunting to export, and be connected with closed gas circuit for the heating unit；In heating unit described in the example boat；The closed gas circuit, including carrier gas inlet, the other end of the closed gas circuit is connected with example boat sealing mechanism；The example boat sealing mechanism, is connected with the example boat, for the sample-adding of the example boat and the sealing of the closed gas circuit.Using the application sampling device, operating procedure significantly reduces, and analyze speed, analysis precision, efficiency are improved significantly.
Description
Technical field
The utility model is related to the gas chromatographic analysis technique among Instrumental Analysis field, particularly gas chromatographic sample introduction
Device.
Background technology
Volatile organic matter in gas chromatographic analysis solid sample, with reference to shown in Fig. 1, existing sample introduction process is：By one
Quantitative solid sample is packed into sample cell 2, and then sample cell 2 is connected with carrier gas line, opens carrier gas steel cylinder 1（High-pure helium
Gas）, adjusting pressure is required pressure, and air plankton in pipeline is purged totally, sample cell 2 is placed in heater box by blow line
Among, sample collection tube 5 is placed in the condensation cup 3 equipped with liquid nitrogen, heating mantle power supply heating sample cell 2 is opened, makes in sample
Organic components evaporate, and the organic component evaporated is brought by carrier gas to sample collection tube 5, and sample volatilizees after collection,
Remove condensation cup 3, among sample collection tube 5 is placed in heating mantle 6, make sample be evaporated to gas enter in gas chromatograph 4 into
Row analysis detection.This kind of sample injection method flow is tediously long, and trivial operations, labor intensity is big, and analysis precision is low.
The content of the invention
In view of this, the utility model provides a kind of gas-chromatography pyrolysis sampling device, it is possible to reduce operating procedure,
It reduces labor intensity, improves analysis efficiency.
For achieving the above object, the technical solution adopted in the utility model is：
A kind of gas-chromatography pyrolysis sampling device, including：
Heating unit, example boat, example boat sealing mechanism and closed gas circuit；
There is sample export and shunting to export, and be connected with closed gas circuit for the heating unit；
The example boat for containing the solid sample, is placed in the heating unit；
The closed gas circuit, including carrier gas inlet, for introducing carrier gas, the carrier gas is used for the solid-like that will be evaporated
Product organic component is loaded into the gas chromatograph, and the other end of the closed gas circuit is connected with example boat sealing mechanism；
The example boat sealing mechanism, is connected with the example boat, sample-adding and the closed gas for the example boat
The sealing on road.
The heating unit, also with power outlet, the power outlet and the chromatograph heating power supply line jack phase
Even, the chromatograph temperature-controlling system control heating unit heats solid sample in the example boat.
The carrier gas inlet is connected with the carrier gas after the gas chromatograph voltage stabilization and current stabilization, consolidating in the example boat
Enter chromatographic column with carrier gas after body sample organic component is heated.
The shunting outlet, part flow arrangement does not link with gas chromatograph shunting, is controlled by chromatograph flow-dividing control unit
Whether shunted.
The sample export, is connected with chromatographic column.
The example boat sealing mechanism, including：
Example boat connecting rod, example boat seal receptacle and example boat handle；
The example boat connecting rod, one end are connected with the example boat, and the other end is connected with example boat handle；
The example boat seal receptacle is connected with the closed gas circuit, the example boat connecting rod, is sealed through the example boat
Seat and the closed gas circuit, are tightly connected between the example boat handle and the example boat seal receptacle.
The beneficial effects of the utility model：The sampling device of the application is by the several of original gas chromatographic sample introduction system
Part is focused among a heating system, and operating procedure significantly reduces, and the labor intensity of analysis operation person reduces, analysis speed
Degree, efficiency are improved significantly；Simultaneously as using the original temperature-controlling system of gas chromatograph, temperature-controlled precision is by ± 1 DEG C
0.1 DEG C is increased to, therefore analysis precision improves 5%.So the sampling device of the utility model is more professional, it is also more practical
Property.
Description of the drawings
By below with reference to description of the attached drawing to the utility model embodiment, the above-mentioned and other mesh of the utility model
, feature and advantage it is apparent, in the accompanying drawings：
Fig. 1 is the structure diagram of the sampling system of the utility model background technology.
Fig. 2 is a kind of structure diagram of gas-chromatography pyrolysis sampling device of the utility model embodiment.
Specific embodiment
The utility model is described below based on embodiment, but what deserves to be explained is, the utility model is simultaneously unlimited
In these embodiments.It is detailed to describe some specific detail sections below in the datail description of the utility model.So
And for the part of no detailed description, those skilled in the art can also understand the utility model completely.
In addition, it should be understood by one skilled in the art that the attached drawing that is provided is simply to illustrate that the utility model
Objects, features and advantages, attached drawing are not to be actually drawn to scale.
Meanwhile unless the context clearly requires otherwise, otherwise throughout the specification and claims " comprising ", "comprising" etc.
Similar word should be construed to the meaning included rather than exclusive or exhaustive meaning；That is, it is " including but not limited to "
Meaning.
Fig. 2 is a kind of structure diagram of gas-chromatography pyrolysis sampling device of the utility model embodiment.By Fig. 2
It is shown：A kind of gas-chromatography pyrolysis sampling device, including：
Heating unit 11, example boat 18, example boat sealing mechanism and closed gas circuit；
Heating unit 11 has sample export 17 and shunting outlet 16, and is connected with closed gas circuit；
Example boat 18 for containing the solid sample, is placed in heating unit 11；
The closed gas circuit, including carrier gas inlet 13, for introducing carrier gas, the carrier gas is used for the solid that will be evaporated
Sample organic component is loaded into the gas chromatograph, and the other end of the closed gas circuit is connected with example boat sealing mechanism；
The example boat sealing mechanism is connected with the example boat 18, for the sample-adding of the example boat 18 and described close
It holds one's breath the sealing on road.
Further, in fig. 2, heating unit 11, also with power outlet 12, power outlet 12 and chromatograph heating
Power cord jack is connected so that chromatograph temperature-controlling system control heating unit heats solid sample in example boat 18.
Further, in fig. 2, carrier gas inlet 13 are connected with the carrier gas after gas chromatograph voltage stabilization and current stabilization, example boat
In solid sample organic component it is heated after with carrier gas enter chromatographic column.
Further, in fig. 2, shunting outlet 6, part flow arrangement does not link with gas chromatograph shunting, by chromatograph point
Flow control unit controls whether to be shunted.
Further, in fig. 2, sample export 17 are connected with chromatographic column.
Further, in fig. 2, example boat sealing mechanism, including：
Example boat connecting rod 19, example boat seal receptacle 15 and example boat handle 14；
Example boat seal receptacle 15 is connected with closed gas circuit；
Example boat connecting rod 19 passes through example boat seal receptacle 15 and closed gas circuit, and one end is connected with example boat 18, the other end and
Example boat handle 14 connects；
It is tightly connected between example boat handle 14 and example boat seal receptacle 15.
Specifically, with reference to Fig. 2, the use process of the utility model is briefly described：
The original common injection port of gas chromatograph is removed, the utility model device is then mounted on gas-chromatography
Chromatograph heating power supply line jack with Heating Unit Power socket 12 is connected, utilizes chromatograph temperature control system by instrument injection port position
System control heating unit heats solid sample in example boat.
Carrier gas inlet 13 is connected with the carrier gas after gas chromatograph voltage stabilization and current stabilization, and the solid sample in example boat is organic
Enter chromatographic column with carrier gas after component is heated.
Shunting outlet 16 shunts not part flow arrangement with gas chromatograph and links, and is controlled whether by chromatograph flow-dividing control unit
It is shunted.Sample export 17 is connected with chromatographic column.
It is put into a certain amount of solid sample of the small bale-out of metal in example boat 18, example boat 18 is gently inserted into heating unit
In 11, example boat seal receptacle 15 is screwed, heating temperature is set, starts chromatograph analysis detection, after the completion of detection, unscrews example boat
Seal receptacle 15 takes out example boat 18, cleans up and treats that next time, detection was used.
This sampling device, which eliminates, needs heating-condensation-heating three step process in original sampling system, only need to be example boat
Middle solid sample heating makes organic component be volatized into chromatograph detection, analytic process organic component free of losses.
Embodiment described above only expresses the embodiment of the utility model, and description is more specific and detailed, but simultaneously
Cannot the limitation to the utility model patent scope therefore be interpreted as.It should be pointed out that the ordinary skill people to this field
For member, without departing from the concept of the premise utility, several deformations, equal replacement can also be made, improved etc., these
Belong to the scope of protection of the utility model.Therefore, the protection domain of the utility model patent should be determined by the appended claims.
Claims (6)
1. a kind of gas-chromatography pyrolysis sampling device, which is characterized in that including：
Heating unit, example boat, example boat sealing mechanism and closed gas circuit；
There is sample export and shunting to export, and be connected with closed gas circuit for the heating unit；
The example boat for containing the solid sample, is placed in the heating unit；
The closed gas circuit, for introducing carrier gas, including carrier gas inlet, the other end and the example boat sealer of the closed gas circuit
Structure connects；
The example boat sealing mechanism, is connected with the example boat, for sample-adding and the closed gas circuit of the example boat
Sealing.
2. gas-chromatography pyrolysis sampling device according to claim 1, it is characterised in that：
The heating unit, also with power outlet, the power outlet is connected with the chromatograph heating power supply line jack, institute
Chromatograph temperature-controlling system control heating unit is stated to heat solid sample in the example boat.
3. gas-chromatography pyrolysis sampling device according to claim 1, it is characterised in that：
The carrier gas inlet is connected with the carrier gas after the gas chromatograph voltage stabilization and current stabilization, the solid-like in the example boat
Enter chromatographic column with carrier gas after product organic component is heated.
4. gas-chromatography pyrolysis sampling device according to claim 1, it is characterised in that：
The shunting outlet, part flow arrangement does not link with gas chromatograph shunting, is controlled whether by chromatograph flow-dividing control unit
It is shunted.
5. gas-chromatography pyrolysis sampling device according to claim 1, it is characterised in that：
The sample export is connected with the chromatographic column of the gas chromatograph.
6. gas-chromatography pyrolysis sampling device according to claim 1, it is characterised in that：
The example boat sealing mechanism, including：
Example boat connecting rod, example boat seal receptacle and example boat handle；
The example boat connecting rod, one end are connected with the example boat, and the other end is connected with example boat handle；
The example boat seal receptacle is connected with the closed gas circuit, the example boat connecting rod, through the example boat seal receptacle and
The closed gas circuit is tightly connected between the example boat handle and the example boat seal receptacle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721559416.2U CN207379989U (en) | 2017-11-21 | 2017-11-21 | A kind of gas-chromatography pyrolysis sampling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721559416.2U CN207379989U (en) | 2017-11-21 | 2017-11-21 | A kind of gas-chromatography pyrolysis sampling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207379989U true CN207379989U (en) | 2018-05-18 |
Family
ID=62332833
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721559416.2U Active CN207379989U (en) | 2017-11-21 | 2017-11-21 | A kind of gas-chromatography pyrolysis sampling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207379989U (en) |
-
2017
- 2017-11-21 CN CN201721559416.2U patent/CN207379989U/en active Active
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