CN209784278U - GC-IMS interface for gas chromatography ion mobility spectrometry - Google Patents
GC-IMS interface for gas chromatography ion mobility spectrometry Download PDFInfo
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- CN209784278U CN209784278U CN201920282908.4U CN201920282908U CN209784278U CN 209784278 U CN209784278 U CN 209784278U CN 201920282908 U CN201920282908 U CN 201920282908U CN 209784278 U CN209784278 U CN 209784278U
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- interface
- light source
- airflow pipeline
- shaped airflow
- dms
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Abstract
the utility model relates to a gas chromatography ion mobility spectrometry GC-IMS interface, which is characterized in that the interface comprises a GC-DMS interface seat, a Z-shaped airflow pipeline and a light source, wherein the Z-shaped airflow pipeline is arranged in the GC-DMS interface seat; and a stainless steel pipe is arranged at the right edge of the Z-shaped airflow pipeline and is connected with the right edge of the Z-shaped airflow pipeline through a fixing nut. The interface of the utility model has the functions of connecting the GC and the DMS, and simultaneously has the function of ionizing the sample separated by the gas chromatography under the action of the light source. The interface adopts a Z-shaped flow path, and the light source irradiates towards the gas flow, so that the contact time of the light source and the sample is prolonged, and the ionization efficiency is increased.
Description
Technical Field
The utility model belongs to the technical field of gas chromatography technique and specifically relates to a gas chromatography ion mobility spectrometry GC-IMS interface.
background
The GC-DMS is an instrument combining a gas chromatograph and an Ion Mobility Spectrometry (IMS) instrument, and the instrument can combine the separation capability of the gas chromatograph and the separation capability of the ion mobility spectrometry to form a three-dimensional spectrogram, thereby providing stronger separation and analysis capabilities. The application fields include: monitoring the change of the sample (food storage condition, freshness and the like) in real time, detecting the quality grade of food, analyzing pesticide residue and animal residue, analyzing environmental pollutants and the like. The GC-DMS interface typically employs an ion source to ionize the sample by irradiating the sample flow path. In the conventional ionization interface design, a light source and a sample flow path are in a vertical state, and when the light source passes through the light source rapidly, a large amount of samples are easy to be not ionized effectively.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the not enough of prior art, provide a gas chromatography ion mobility spectrometry GC-IMS interface.
The purpose of the utility model is realized through the following technical scheme:
A gas chromatography ion mobility spectrometry GC-IMS interface comprises a GC-DMS interface seat, a Z-shaped airflow pipeline and a light source, wherein the Z-shaped airflow pipeline is arranged in the GC-DMS interface seat, a GC chromatographic column is arranged on the left edge of the Z-shaped airflow pipeline, and the GC chromatographic column is connected with the left edge of the Z-shaped airflow pipeline through a fixing nut; and a stainless steel pipe is arranged at the right edge of the Z-shaped airflow pipeline and is connected with the right edge of the Z-shaped airflow pipeline through a fixing nut.
The light source is arranged at the center of the lower end of the GC-DMS interface seat.
The interface seat is made of stainless steel or quartz.
The light source is a 63Ni light source or an ultraviolet light discharge lamp.
The inner diameter of the gas flow path is 1 to 10 mm.
A gas chromatography ion mobility spectrometry (GC-DMS) interface comprises a GC-DMS interface seat, a Z-shaped gas flow pipeline and a light source. The interface has the function of connecting the GC and the DMS, and simultaneously has the function of ionizing a sample separated by the gas chromatograph under the action of the light source. The interface adopts a Z-shaped flow path, and the light source irradiates towards the gas flow, so that the contact time of the light source and the sample is prolonged, and the ionization efficiency is increased.
Compared with the prior art, the utility model has the positive effects that:
The utility model adopts a newly designed flow path, and the ionization efficiency of the sample is better by prolonging the contact time of the light source and the sample; compared with the conventional interface, the interface has the following advantages:
(1) the ionization efficiency is high;
(2) The interface is lighter and thinner due to the flat design;
(3) the application range is wide, and various gas chromatographs and Ion Mobility Spectrometry (IMS) can be combined.
Drawings
FIG. 1 is a schematic view of the present invention;
the labels in the figures are: the device comprises a 1 GC-DMS interface seat, a 2Z-shaped airflow pipeline, a 3 light source, 4 fixing nuts, 5 GC chromatographic columns and 6 stainless steel pipes.
Detailed Description
The following provides a specific embodiment of the GC-IMS interface of the present invention.
Example 1
referring to fig. 1, a GC-IMS interface of a gas chromatography ion mobility spectrometry comprises a GC-DMS interface seat, a Z-shaped airflow pipeline, a light source, a Z-shaped airflow pipeline 2 disposed in the GC-DMS interface 1, a GC chromatographic column 5 disposed at the left edge of the Z-shaped airflow pipeline, and a fixing nut 4 connecting the GC chromatographic column with the left edge of the Z-shaped airflow pipeline; and a stainless steel pipe 6 is arranged at the right edge of the Z-shaped airflow pipeline and is connected with the right edge of the Z-shaped airflow pipeline through a fixing nut.
The light source 3 is centrally located at the lower end of the GC-DMS interface mount.
The interface seat is made of stainless steel or quartz.
The light source is a 63Ni light source or an ultraviolet light discharge lamp.
The inner diameter of the gas flow path is 1 to 10 mm.
A gas chromatography ion mobility spectrometry (GC-DMS) interface comprises a GC-DMS interface seat, a Z-shaped gas flow pipeline and a light source. The interface has the function of connecting the GC and the DMS, and simultaneously has the function of ionizing a sample separated by the gas chromatograph under the action of the light source. The interface adopts a Z-shaped flow path, and the light source irradiates towards the gas flow, so that the contact time of the light source and the sample is prolonged, and the ionization efficiency is increased.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the concept of the present invention, and these improvements and decorations should also be considered as within the protection scope of the present invention.
Claims (4)
1. A gas chromatography ion mobility spectrometry GC-IMS interface is characterized by comprising a GC-DMS interface seat, a Z-shaped airflow pipeline and a light source, wherein the GC-DMS interface seat is internally provided with the Z-shaped airflow pipeline, the left edge of the Z-shaped airflow pipeline is provided with a GC chromatographic column, and the GC chromatographic column is connected with the left edge of the Z-shaped airflow pipeline through a fixing nut; and a stainless steel pipe is arranged at the right edge of the Z-shaped airflow pipeline and is connected with the right edge of the Z-shaped airflow pipeline through a fixing nut.
2. The GC-IMS interface of claim 1 wherein the interface mount is stainless steel or quartz.
3. The GC-IMS interface of claim 1 wherein the light source is a 63Ni light source or an ultraviolet discharge lamp.
4. The GC-IMS interface of claim 1, wherein the gas flow path has an inner diameter of 1 mm to 10 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920282908.4U CN209784278U (en) | 2019-03-06 | 2019-03-06 | GC-IMS interface for gas chromatography ion mobility spectrometry |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920282908.4U CN209784278U (en) | 2019-03-06 | 2019-03-06 | GC-IMS interface for gas chromatography ion mobility spectrometry |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209784278U true CN209784278U (en) | 2019-12-13 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920282908.4U Expired - Fee Related CN209784278U (en) | 2019-03-06 | 2019-03-06 | GC-IMS interface for gas chromatography ion mobility spectrometry |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209784278U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113390995A (en) * | 2021-06-17 | 2021-09-14 | 中国烟草总公司郑州烟草研究院 | Portable gas chromatography ion mobility spectrometry GC-IMS with sample inlet |
-
2019
- 2019-03-06 CN CN201920282908.4U patent/CN209784278U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113390995A (en) * | 2021-06-17 | 2021-09-14 | 中国烟草总公司郑州烟草研究院 | Portable gas chromatography ion mobility spectrometry GC-IMS with sample inlet |
| CN113390995B (en) * | 2021-06-17 | 2023-12-26 | 中国烟草总公司郑州烟草研究院 | Portable gas chromatography ion mobility spectrometry GC-IMS with sample inlet |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191213 Termination date: 20210306 |
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| CF01 | Termination of patent right due to non-payment of annual fee |