Drug detection gas chromatograph system convenient to maintain

Abstract

The invention relates to the technical field of chromatographic instruments, and discloses a drug detection gas chromatograph system convenient to maintain, which comprises a chromatographic instrument, a filter is mounted at the top of the left side of the chromatographic instrument, a gas inlet is connected to the right side of the filter, a gas transmission port is formed in the front end of the filter, a filter element is mounted in the filter, and a gas outlet is formed in the right side of the filter. Activated carbon is arranged on the inner side of the filter element, an inner testing cavity is formed in the chromatographic instrument, and a sample inlet is formed in the left side of the top of the chromatographic instrument. By arranging a structure convenient to maintain, during use, filling gas is communicated with a gas conveying opening in the front end of the filter through a pipeline, and after the gas enters the filter, part of impurities and the like in the gas are filtered through a filter element and activated carbon in the filter; and the filtered gas is conveyed into an inner testing cavity in the chromatographic instrument through a gas inlet in the right side of the filter, so that the function of convenient maintenance is realized.

Description

Technical Field

[0001] The invention relates to the technical field of chromatographs, in particular to a gas chromatograph system for drug detection which is easy to maintain. Background Art

[0002] Gas chromatograph is a separation and analysis tool for multi-component mixtures. It uses gas as the mobile phase and adopts the column chromatography technology of flushing method. When the automatic sample preparation and injection device pushes the multi-component analytical substances into the chromatographic column, due to the different distribution coefficients between the gas phase and the stationary liquid phase of the chromatographic column, the running speed of each component in the chromatographic column is also different. After a certain column length, they leave the chromatographic column in sequence and enter the detector. After detection, they are converted into electrical signals and sent to the data processing workstation, thus completing the fully automatic qualitative and quantitative analysis of the measured substances. It is used in testing institutions, research institutes, packaging companies, food and pharmaceutical industries, etc.

[0003] As a precision analytical instrument, the gas chromatograph needs regular maintenance to ensure stable performance and extend its service life. When in use, the gas source is delivered to the inside of the chromatograph through the delivery port. If high-purity gas is used in a cylinder, it needs to be purified and filtered. Therefore, we propose a drug detection gas chromatograph system that is easy to maintain to improve the above problems. Summary of the invention

[0004] The object of the present invention is to provide a gas chromatograph system for drug detection that is easy to maintain, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical scheme: a gas chromatograph system for drug detection that is easy to maintain, comprising a chromatographic instrument, a filter is installed on the top left side of the chromatographic instrument, an air inlet is connected to the right side of the filter, a gas delivery port is arranged at the front end of the filter, a filter element is installed inside the filter, activated carbon is arranged on the inner side of the filter element, and an inner test cavity is arranged inside the chromatographic instrument.

[0006] As a further technical solution of the present invention, the filter element carrying activated carbon is installed inside the filter, and the air delivery port is connected with the air inlet through the filter.

[0007] As a further technical solution of the present invention, the filter is connected to the inner test cavity inside the chromatographic instrument through the air inlet.

[0008] As a further technical solution of the present invention, a sample inlet is installed on the left side of the top of the chromatographic instrument, a detector is installed on the right side of the top of the chromatographic instrument, a protective door is installed on the left side of the front end of the chromatographic instrument, a light-isolating layer is arranged at the front end of the protective door, an operation screen is inlaid on the right side of the front end of the chromatographic instrument, a protective cover is arranged on the right side of the front end of the chromatographic instrument, a pressure gauge is arranged at the rear end of the protective cover, a spectral column is installed inside the inner test cavity, and a fan port is arranged inside the inner test cavity.

[0009] As a further technical solution of the present invention, the rear end of the protective door is magnetically attached to a temperature and humidity sensor, the front end of the temperature and humidity sensor is installed with a magnetic block, the left side of the temperature and humidity sensor is provided with a humidity sensing port, and the right side of the temperature and humidity sensor is provided with a temperature sensing port.

[0010] As a further technical solution of the present invention, the temperature and humidity sensor is magnetically attracted to the protective door via a magnetic attraction block, and the temperature sensing port and the humidity sensing port are respectively arranged on both sides of the temperature and humidity sensor.

[0011] As a further technical solution of the present invention, a UV disinfection lamp is installed at the inner bottom end of the inner test cavity, a hygroscopic cotton layer is inlaid at the bottom of the inner test cavity, and fixing blocks are arranged on both sides of the hygroscopic cotton layer.

[0012] As a further technical solution of the present invention, the fixed blocks on both sides of the bottom of the inner test cavity clamp the hygroscopic cotton layer, and the hygroscopic cotton layer and the UV disinfection lamp are cross-arranged at the bottom of the inner test cavity.

[0013] Compared with the prior art, the beneficial effects of the present invention are: the easy-to-maintain gas chromatograph for drug detection not only realizes the easy maintenance function and the external environment monitoring function, but also realizes the virus-killing and moisture-absorbing function;

[0014] (1) By providing a maintenance-friendly structure, the present invention is advantageous in that: when in use, the filling gas is connected to the gas delivery port at the front end of the filter through a pipeline, and after the gas enters the interior of the filter, some impurities in the gas are filtered by the filter element and activated carbon inside the filter, and after filtration, the gas is delivered to the inner test chamber inside the chromatographic instrument through the air inlet on the right side of the filter, thereby realizing the maintenance-friendly function;

[0015] (2) By setting up an external environment monitoring structure, the present invention is beneficial in that: when in use, the magnetic attraction block at the rear end of the temperature and humidity sensor is magnetically attracted to the outside of the protective door, and then the external environment where the chromatographic instrument is placed is detected through the temperature sensing ports and humidity sensing ports on both sides of the temperature and humidity sensor to see whether the current environment is suitable for the storage of the chromatographic instrument, thereby realizing the external environment monitoring function;

[0016] (3) By setting up a disinfection and moisture absorption structure, the present invention has the following advantages: when in use, the moisture absorption cotton layers are cross-mounted between the UV disinfection lamps at the bottom of the inner test cavity, and the moisture absorption cotton layers are fixed to the bottom of the inner test cavity by a fixing block. When in use, the moisture inside the inner test cavity is absorbed by the moisture absorption cotton layer, and at the same time, the UV disinfection lamp at the bottom of the inner test cavity is started to disinfect the inside of the inner test cavity, thereby realizing the disinfection and moisture absorption function. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a front view of the unfolded structure schematic diagram of the present invention;

[0018] Figure 2 It is a front view structural schematic diagram of the present invention;

[0019] Figure 3 It is a schematic diagram of the rear cross-sectional structure of the filter of the present invention;

[0020] Figure 4 It is a schematic diagram of the side view structure of the temperature and humidity sensor of the present invention;

[0021] Figure 5 It is a schematic diagram of the top view of the bottom structure of the inner test cavity of the present invention.

[0022] In the figure: 1. Protective door; 2. Light-proof layer; 3. Sample injection port; 4. Detector; 5. Operation screen; 6. Barometer; 7. Chromatographic instrument; 8. Spectral column; 9. Inner test chamber; 10. Fan port; 11. UV disinfection lamp; 12. Temperature and humidity sensor; 13. Temperature sensing port; 14. Humidity sensing port; 15. Filter; 16. Air inlet; 17. Air outlet; 18. Protective cover; 19. Activated carbon; 20. Filter element; 21. Magnetic block; 22. Moisture-absorbing cotton layer; 23. Fixing block. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] See also Figure 1-5 , an embodiment provided by the present invention: a gas chromatograph system for drug detection that is easy to maintain, comprising a chromatographic instrument 7, a filter 15 is installed on the top of the left side of the chromatographic instrument 7, an air inlet 16 is connected to the right side of the filter 15, a gas delivery port 17 is arranged at the front end of the filter 15, a filter core 20 is installed inside the filter 15, activated carbon 19 is arranged inside the filter core 20, and an inner test cavity 9 is arranged inside the chromatographic instrument 7;

[0025] The filter element 20 carrying the activated carbon 19 is installed inside the filter 15, the gas delivery port 17 is connected with the gas inlet 16 through the filter 15, and the filter 15 is connected with the inner test cavity 9 inside the chromatographic instrument 7 through the gas inlet 16;

[0026] Specifically, Figure 1 , Figure 2 and Figure 3 As shown, by setting a structure that is easy to maintain, when in use, the filling gas is connected to the gas delivery port 17 at the front end of the filter 15 through a pipeline. After the gas enters the filter 15, some impurities in the gas are filtered by the filter element 20 and the activated carbon 19 inside the filter 15. After filtration, the gas is transported to the internal test chamber 9 inside the chromatographic instrument 7 through the air inlet 16 on the right side of the filter 15, thereby realizing the easy maintenance function.

[0027] An injection port 3 is installed on the left side of the top of the chromatographic instrument 7, a detector 4 is installed on the right side of the top of the chromatographic instrument 7, a protective door 1 is installed on the left side of the front end of the chromatographic instrument 7, a light-isolating layer 2 is provided at the front end of the protective door 1, a temperature and humidity sensor 12 is magnetically attracted to the rear end of the protective door 1, a magnetic block 21 is installed at the front end of the temperature and humidity sensor 12, a humidity sensing port 14 is provided on the left side of the temperature and humidity sensor 12, and a temperature sensing port 13 is provided on the right side of the temperature and humidity sensor 12;

[0028] The temperature and humidity sensor 12 is magnetically attracted to the protective door 1 through the magnetic attraction block 21, and the temperature sensing port 13 and the humidity sensing port 14 are respectively arranged on both sides of the temperature and humidity sensor 12;

[0029] Specifically, Figure 2 and Figure 4 As shown, by setting up an external environment monitoring structure, the magnetic block 21 at the rear end of the temperature and humidity sensor 12 is magnetically attracted to the outside of the protective door 1 when in use, and then the external environment where the chromatographic instrument 7 is placed is detected through the temperature sensing port 13 and the humidity sensing port 14 on both sides of the temperature and humidity sensor 12 to see whether the current environment is suitable for the storage of the chromatographic instrument 7, thereby realizing the external environment monitoring function.

[0030] The fixing blocks 23 on both sides of the bottom of the inner test cavity 9 clamp the hygroscopic cotton layer 22, and the hygroscopic cotton layer 22 and the UV disinfection lamp 11 are cross-arranged at the bottom of the inner test cavity 9;

[0031] A UV disinfection lamp 11 is installed at the inner bottom of the inner test cavity 9, a hygroscopic cotton layer 22 is inlaid at the bottom of the inner test cavity 9, and fixing blocks 23 are arranged on both sides of the hygroscopic cotton layer 22;

[0032] Specifically, Figure 1 and Figure 5As shown, by setting up a virus-killing and moisture-absorbing structure, when in use, the moisture-absorbing cotton layer 22 is cross-installed in sequence between the UV disinfection lamps 11 at the bottom of the inner test cavity 9, and the moisture-absorbing cotton layer 22 is fixed to the bottom of the inner test cavity 9 by a fixing block 23. When in use, the moisture inside the inner test cavity 9 is absorbed by the moisture-absorbing cotton layer 22, and at the same time, the UV disinfection lamp 11 at the bottom of the inner test cavity 9 is started to disinfect the inside of the inner test cavity 9, thereby realizing the virus-killing and moisture-absorbing function.

[0033] Working principle: The present invention connects the filling gas through a pipeline with the gas delivery port 17 at the front end of the filter 15, allows the gas to enter the filter 15, and then filters some impurities in the gas through the filter element 20 and the activated carbon 19 inside the filter 15. After filtering, the gas is transported to the inner test cavity 9 inside the chromatographic instrument 7 through the air inlet 16 on the right side of the filter 15. After that, the sample enters the spectral column 8 inside the inner test cavity 9 through the protective door 1 on the top of the chromatographic instrument 7 and is then transported to the detector 4 for detection. The moisture-absorbing cotton layer 22 is fixed in the inner test cavity 9 by the fixing block 23. At the bottom, when in use, the moisture inside the inner test cavity 9 is absorbed by the moisture-absorbing cotton layer 22 to keep the inside of the inner test cavity 9 dry. After use, after cleaning the inside of the spectrum column 8, the UV disinfection lamp 11 at the bottom of the inner test cavity 9 is started to disinfect the inside of the inner test cavity 9. When the chromatographic instrument 7 is stored, the magnetic block 21 at the rear end of the temperature and humidity sensor 12 is magnetically attracted to the outside of the protective door 1, and then the temperature sensing port 13 and the humidity sensing port 14 on both sides of the temperature and humidity sensor 12 are used to detect the external environment where the chromatographic instrument 7 is placed to see whether the current environment is suitable for the storage of the chromatographic instrument 7.

[0034] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A gas chromatograph system for drug detection that is easy to maintain, comprising a chromatographic instrument (7), characterized in that: A filter (15) is installed at the top of the left side of the chromatographic instrument (7), an air inlet (16) is connected to the right side of the filter (15), a gas delivery port (17) is arranged at the front end of the filter (15), a filter core (20) is installed inside the filter (15), activated carbon (19) is arranged inside the filter core (20), and an inner test cavity (9) is arranged inside the chromatographic instrument (7).

2. The easy-to-maintain gas chromatograph system for drug detection according to claim 1, characterized in that: The filter core (20) carries the activated carbon (19) and is installed inside the filter (15), and the air delivery port (17) is connected to the air inlet (16) through the filter (15).

3. The easy-to-maintain gas chromatograph system for drug detection according to claim 1, characterized in that: The filter (15) is connected to the inner test cavity (9) inside the chromatographic instrument (7) through the air inlet (16).

4. The easy-to-maintain gas chromatograph system for drug detection according to claim 1, characterized in that: The chromatographic instrument (7) is provided with an injection port (3) on the left side of the top, a detector (4) on the right side of the top, a protective door (1) on the left side of the front end of the chromatographic instrument (7), a light-isolating layer (2) on the front end of the protective door (1), an operation screen (5) on the right side of the front end of the chromatographic instrument (7), a protective cover (18) on the right side of the front end of the chromatographic instrument (7), a barometer (6) on the rear end of the protective cover (18), a spectral column (8) on the inside of the inner test cavity (9), and a fan port (10) on the inside of the inner test cavity (9).

5. The easy-to-maintain gas chromatograph system for drug detection according to claim 4, characterized in that: A temperature and humidity sensor (12) is magnetically attracted at the rear end of the protective door (1), a magnetic attraction block (21) is installed at the front end of the temperature and humidity sensor (12), a humidity sensing port (14) is arranged on the left side of the temperature and humidity sensor (12), and a temperature sensing port (13) is arranged on the right side of the temperature and humidity sensor (12).

6. The easy-to-maintain gas chromatograph system for drug detection according to claim 5, characterized in that: The temperature and humidity sensor (12) is magnetically attracted to the protective door (1) via a magnetic attraction block (21), and the temperature sensing port (13) and the humidity sensing port (14) are respectively arranged on both sides of the temperature and humidity sensor (12).

7. The easy-to-maintain gas chromatograph system for drug detection according to claim 1, characterized in that: A UV disinfection lamp (11) is installed at the inner bottom end of the inner test cavity (9), a hygroscopic cotton layer (22) is inlaid at the bottom of the inner test cavity (9), and fixing blocks (23) are arranged on both sides of the hygroscopic cotton layer (22).

8. The easy-to-maintain gas chromatograph system for drug detection according to claim 7, characterized in that: The fixing blocks (23) on both sides of the bottom of the inner test cavity (9) clamp the hygroscopic cotton layer (22), and the hygroscopic cotton layer (22) and the UV disinfection lamp (11) are cross-arranged at the bottom of the inner test cavity (9).

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