CN204462086U - A kind of fast gas chromatograph with open probe assembly - Google Patents
A kind of fast gas chromatograph with open probe assembly Download PDFInfo
- Publication number
- CN204462086U CN204462086U CN201520065714.0U CN201520065714U CN204462086U CN 204462086 U CN204462086 U CN 204462086U CN 201520065714 U CN201520065714 U CN 201520065714U CN 204462086 U CN204462086 U CN 204462086U
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- open probe
- low thermal
- open
- electronic contact
- chromatograph
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Abstract
The utility model discloses a kind of fast gas chromatograph with open probe assembly, comprise open probe module assembly, constant temperature conductance cell, short capillary chromatograph, mass detector, low thermal mass pipe heater, power supply, the first electronic contact, the second electronic contact, interface element and injector; Open probe module assembly comprises open probe subsystem, opening, well heater, inert gas entrance and input end; Sample imports open probe subsystem through opening; Well heater is outer to heat open probe subsystem in open probe subsystem; Open probe subsystem comprises the built-in inertia liner of the anti-inert gas leakage being additional to inert gas entrance place; Short capillary chromatograph upper end connects the low thermal mass pipe heater that input end is imported with interface element, and lower end is connected to mass spectrometer; Power supply is through the first electronic contact and the second electronic contact heating low thermal mass pipe heater; Injector is positioned on constant temperature conductance cell.
Description
Technical field
The utility model relates to determination and analysis field, particularly relates to the fast gas chromatograph with open probe assembly.
Background technology
Gas chromatograph is a center analysis technology, has a wide range of applications in environmental monitoring field; When being especially combined with mass spectrometer, its sensitivity, selectivity and sample identification ability can be improved.
But gas chromatograph is as a powerful analysis tool, and the time cycle of a standard gas chromatograph analysis sample is generally 30 ~ 60 minutes; In addition, be only limitted to detection that is stable and volatile compound with the gas chromatograph being provided with the routine that standard colour chart standard (being generally 30m) and standard column flow velocity (as 1ml/min) combine, and thermal instability compound may cannot make low voc compounds wash-out from capillary chromatograph owing to crossing thermal degradation., but existing standard gas chromatograph and mass spectrometer module higher in conjunction with cost, even if market has fast gas chromatograph or gas chromatograph-mass spectrometer fast, but the duration of the analysis sample of the overwhelming majority still needs more than 20 minute in addition.
Therefore, in view of standard gas chromatograph analyzes length consuming time, when especially relating to twin columns sample detection, the structure of standard gas chromatograph is comparatively complicated, need a kind of fast gas chromatograph for improving determination and analysis efficiency badly, meanwhile, have chromatography column is rapidly heated the simple fast gas chromatograph of structure of degree of heat and cooling effectiveness.
Utility model content
For the problems referred to above, the purpose of this utility model is to provide a kind of fast gas chromatograph with open probe assembly, solves the technical matters analyzing cycle consuming time length.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of fast gas chromatograph with open probe assembly, comprises open probe module assembly, constant temperature conductance cell, short capillary chromatograph, mass detector, low thermal mass pipe heater, power supply, the first electronic contact, the second electronic contact, interface element, injector and thermopair.
Open probe module assembly is positioned at above constant temperature conductance cell; form probe constant temperature enclosure; this probe constant temperature enclosure is positioned at above mass detector; mass detector is open in room air; have helium simultaneously and purge out stream protection to eliminate or to reduce Leakage Gas to open probe constant temperature enclosure, it comprises open probe subsystem, opening, well heater, built-in inertia liner, inert gas entrance and input end.
Sample imports open probe subsystem by the opening being positioned at open probe module assembly front end.
Well heater is positioned at outside open probe subsystem, for heating open probe subsystem.
Open probe subsystem comprises a built-in inertia liner, and this built-in inertia liner is additional to inert gas entrance place, reveals to prevent inert gas.
Short capillary chromatograph upper end is connected in the input end of open probe module assembly, then be imported in circular low thermal mass pipe heater and heat, low thermal mass pipe heater is positioned at the probe constant temperature enclosure that open probe module assembly is formed, its lower end is provided with interface element, and the output terminal of short capillary chromatograph is connected in mass spectrometer flexibly through interface element.
Power supply carries out resistance heated by the first electronic contact and the second electronic contact to low thermal mass pipe heater, and then heats short capillary chromatograph, and the temperature of chromatographic column uses thermocouple measurement, and thermopair one end connects power supply, and the other end connects low thermal mass pipe heater; Described first electronic contact connects input end, the second electronic contact connecting interface element.
Injector is positioned on constant temperature conductance cell, can connect short capillary chromatograph, one end of short capillary chromatograph can be connected injector, the other end is connected to mass spectrometer, when open probe module assembly cannot use, the utility model is converted to the standard gas chromatograph of single-column list detecting device.
The feature of the open probe module assembly that the utility model adopts is to have the fastest speed and the shortest analysis time period between all mass detector probes, and this time cycle is less than 10 seconds; And the use of mass detector probe is very flexibly with simple; Open probe mass detector has supper-fast separating power, can complete the process that sample is injected into output detections result in 1 minute.Therefore, the combination of open probe and quick gas chromatograph-mass spectrometer means that the injection rate of sample is accelerated, and sample preparation time shortens.
Accompanying drawing explanation
Fig. 1 is the utility model schematic diagram.
Wherein: open probe fast gas chromatograph assembly 30, constant temperature conductance cell 31, open probe subsystem 32, opening 33, well heater 34, built-in inertia liner 35, inert gas entrance 36, short capillary chromatograph 37, input end 38, mass detector 39, low thermal mass pipe heater 40, power supply 41, first electronic contact 42, second electronic contact 43, interface element 44, injector 45.
Embodiment
Below in conjunction with the embodiment described by accompanying drawing, the utility model is described in further detail.
There is a fast gas chromatograph for open probe assembly, comprise open probe module assembly 30, constant temperature conductance cell 31, short capillary chromatograph 37, mass detector 39, low thermal mass pipe heater 40, power supply 41, first electronic contact 42, second electronic contact 43, interface element 44, injector 45 and thermopair 46.
Open probe module assembly 30 is positioned at above constant temperature conductance cell 31; form probe constant temperature enclosure; this probe constant temperature enclosure be positioned at mass detector 39 above; mass detector 39 is open in room air; have helium simultaneously and purge out stream protection to eliminate or to reduce Leakage Gas to open probe constant temperature enclosure, open probe module assembly 30 comprises open probe subsystem 32, opening 33, well heater 34, built-in inertia liner 35, inert gas entrance 36 and input end 38.
Sample imports open probe subsystem 32 by the opening 33 being positioned at open probe module assembly 30 front end.
Well heater 34 is positioned at outside open probe subsystem 32, for heating open probe subsystem 32.
Open probe subsystem 32 comprises a built-in inertia liner 35, and this built-in inertia liner 35 is additional to inert gas entrance 36 place, reveals to prevent inert gas.
Short capillary chromatograph 37 upper end is connected in the input end 38 of open probe module assembly 30, then be imported in circular low thermal mass pipe heater 40 and heat, low thermal mass pipe heater 40 is positioned at the probe constant temperature enclosure that open probe module assembly 30 is formed, its lower end is provided with interface element 44, and the output terminal of short capillary chromatograph 37 is connected in mass spectrometer 39 flexibly through interface element 44.
Power supply 41 carries out resistance heated by the first electronic contact 42 and the second electronic contact 43 pairs of low thermal mass pipe heaters 40, and then heat short capillary chromatograph 37, the temperature of short capillary chromatograph 37 uses thermopair 46 to measure, thermopair 46 one end connects power supply, and the other end connects low thermal mass pipe heater 40; Described first electronic contact 42 connects input end 38, the second electronic contact 43 connecting interface element 44.
Injector 45 is positioned on constant temperature conductance cell 31, short capillary chromatograph 37 can be connected, one end of short capillary chromatograph 37 can be connected injector 45, the other end is connected to mass spectrometer 39, when open probe module assembly 30 cannot use, the utility model is converted to the standard gas chromatograph of single-column list detecting device.
The feature of the open probe module assembly 30 that the utility model adopts is to have the fastest speed and the shortest analysis time period between all probes, and this time cycle is less than 10 seconds; And the use of probe is very flexibly with simple; The combination of open probe and mass detector makes the utility model have supper-fast separating power, can complete the process that sample is injected into output detections result in 1 minute.Therefore, the combination of open probe and quick gas chromatograph-mass spectrometer means that the injection rate of sample is accelerated, and sample preparation time shortens.
Claims (2)
1. there is a fast gas chromatograph for open probe assembly, it is characterized in that: comprise open probe module assembly, constant temperature conductance cell, short capillary chromatograph, mass detector, low thermal mass pipe heater, power supply, the first electronic contact, the second electronic contact, interface element, injector and thermopair;
Described open probe module assembly is positioned at above constant temperature conductance cell, and form probe constant temperature enclosure, this probe constant temperature enclosure is positioned at above mass detector, and it comprises open probe subsystem, opening, well heater, inert gas entrance and input end;
Described opening is positioned at the front end of open probe module assembly, with by open for Sample introduction probe subsystem;
Described well heater is positioned at outside open probe subsystem, for heating open probe subsystem;
Described open probe subsystem comprises a built-in inertia liner, and this built-in inertia liner is additional to inert gas entrance place, reveals to prevent inert gas;
The upper end of described short capillary chromatograph is connected to described input end, import in low thermal mass pipe heater and heat, low thermal mass pipe heater is positioned at the probe constant temperature enclosure that open probe module assembly is formed, the lower end of low thermal mass pipe heater is provided with interface element, and the output terminal of short capillary chromatograph is connected to mass spectrometer through interface element;
Described power supply carries out resistance heated by the first electronic contact and the second electronic contact to low thermal mass pipe heater, and then heats short capillary chromatograph; Described first electronic contact connects input end, the second electronic contact connecting interface element;
Described thermopair one end connects power supply, and the other end connects low thermal mass pipe heater to measure the temperature of capillary chromatograph;
Described injector is positioned on constant temperature conductance cell, when open probe module assembly cannot use, connects low thermal mass pipe heater and mass spectrometer, to convert the standard gas chromatograph of single-column list detecting device to by short capillary chromatograph.
2. a kind of fast gas chromatograph with open probe assembly according to claim 1, is characterized in that: described low thermal mass pipe heater is circular structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520065714.0U CN204462086U (en) | 2015-01-29 | 2015-01-29 | A kind of fast gas chromatograph with open probe assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520065714.0U CN204462086U (en) | 2015-01-29 | 2015-01-29 | A kind of fast gas chromatograph with open probe assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204462086U true CN204462086U (en) | 2015-07-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520065714.0U Expired - Fee Related CN204462086U (en) | 2015-01-29 | 2015-01-29 | A kind of fast gas chromatograph with open probe assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204462086U (en) |
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2015
- 2015-01-29 CN CN201520065714.0U patent/CN204462086U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150708 Termination date: 20160129 |
|
| EXPY | Termination of patent right or utility model |