Mass spectrometry detection auxiliary device capable of adjusting sample injection rate

Abstract

The utility model relates to the technical field of mass spectrometer feeding systems, and discloses a mass spectrometry detection auxiliary device capable of adjusting the sample injection rate, which comprises a mass spectrometer feeding port, a control mechanical arm is arranged on one side of the mass spectrometer feeding port, and a material extraction structure corresponding to the mass spectrometer feeding port is mounted on the control mechanical arm. According to the utility model, mass spectrometer detection feeding is carried out in an extraction injection mode, the material extraction structure can be driven to move between the material tray and the mass spectrometer feeding port by controlling the mechanical arm, the insertion tube of the extraction cylinder can be controlled to be inserted into the mass spectrometer feeding port through the material extraction structure, and the extraction piston in the extraction cylinder is controlled to move by using the push rod; the device is simple in structure, convenient to control and capable of effectively coping with multiple groups of contrast mass spectrum detection, the feeding rate is flexibly adjusted, the pushed materials are clean and not prone to residues, and the detection result is prevented from being affected.

Description

TECHNICAL FIELD

[0001] The utility model relates to mass spectrometer feed system technical field, concretely is a kind of mass spectrum detection auxiliary device of adjustable sample sample rate. BACKGROUND

[0002] Mass spectrometer is a kind of instrument that separates and detects different isotopes, that is, according to the principle that charged particles can be deflected in electromagnetic field, according to the mass difference of substance atom, molecule or molecular fragment, a kind of instrument that separates and detects substance composition.

[0003] At present, mass spectrometer needs to pass material into ion source in application process, and the mass spectrum detection instrument of present stage mainly relies on the container that stores material by pipeline connection, and realizes the control of feeding rate by controlling the valve of pipeline.

[0004] However, this way needs to connect different containers when detecting a plurality of different group substances, not only operation is troublesome, but also different containers need to be cleaned separately, and residue is easy to form in pipeline, causing interference between detection samples, affect detection result.

[0005] In view of this, in-depth research is conducted for the above problems, and the case is generated. UTILITY MODEL CONTENT

[0006] In view of the deficiencies of prior art, the utility model provides mass spectrum detection auxiliary device of adjustable sample sample rate, solves the problems in prior art.

[0007] To achieve the above purpose, the utility model is realized by the following technical scheme:

[0008] A kind of mass spectrum detection auxiliary device of adjustable sample sample rate, including mass spectrometer feed port, the side of the mass spectrometer feed port is provided with control mechanical arm, and material extraction structure is installed on the control mechanical arm corresponding mass spectrometer feed port;

[0009] The material extraction structure includes extraction cylinder, the extraction cylinder is the cavity shell of cylindrical structure, extraction piston is assembled in the extraction cylinder, extraction piston is connected with extraction rod on one side, extraction control push rod is connected at the end of the extraction rod, plug tube is arranged at the head of the extraction cylinder, sealing valve is arranged on the mass spectrometer feed port, sealing ring is arranged on the side of the sealing valve;

[0010] The material extraction structure further includes one-way pressure valve, one-way pressure valve is arranged at the end of the plug tube, the diameter of the mass spectrometer feed port and plug tube is matched;

[0011] The side of the control mechanical arm is provided with a placing tray, a plurality of installation slots are arranged in a matrix on the placing tray, and a plurality of material pipes are assembled in the plurality of installation slots.

[0012] Preferably, one side of the extraction cylinder is provided with a connecting interface, and the connecting interface is connected with a cleaning pipe.

[0013] Preferably, the mass spectrometer feed port and the insertion pipe are in transition fit, and the end of the insertion pipe is provided with a bevel.

[0014] Preferably, the control mechanical arm comprises a guide rail, the guide rail is installed in a ceiling on one side of the mass spectrometer feed port, a sliding seat connected with a linear motor is arranged on the guide rail, a rotator is arranged on the sliding seat, a telescopic device is connected to the rotating end of the rotator, a connecting seat is installed on the telescopic end of the telescopic device, and the connecting seat is connected with the top of the extraction cylinder through bolts.

[0015] Preferably, the placing tray is placed below the guide rail.

[0016] Beneficial effects

[0017] The utility model provides a kind of mass spectrum detection auxiliary device of adjustable sample injection rate, with following beneficial effects:

[0018] Mass spectrometer detection feed is carried out in the mode of extraction injection, material extraction structure can be moved between material tray and mass spectrometer feed port by control mechanical arm, insertion pipe of extraction cylinder is inserted into mass spectrometer feed port by material extraction structure, and material is sprayed into ion source side by using push rod to control extraction piston movement in extraction cylinder, so that multiple control mass spectrum tests can be effectively coped with, and feed rate is flexibly adjusted, push material is clean and not easy to remain, to avoid affecting detection result. BRIEF DESCRIPTION OF DRAWINGS

[0019] Fig. 1 It is a kind of mass spectrum detection auxiliary device of adjustable sample injection rate of the utility model three-dimensional structure schematic view.

[0020] Fig. 2 It is a kind of mass spectrum detection auxiliary device of adjustable sample injection rate of the utility model sectional structure schematic view.

[0021] Fig. 3 It is a kind of mass spectrum detection auxiliary device of adjustable sample injection rate of the utility model blasting structure schematic view.

[0022] In the figure: 1, mass spectrometer feed port; 2, control mechanical arm; 3, material extraction structure; 4, placing tray; 5, material pipe; 11, block valve; 21, guide rail; 22, sliding seat; 23, rotator; 24, telescopic device; 25, connecting seat; 31, extraction cylinder; 32, extraction piston; 33, extraction rod; 34, extraction control push rod; 35, one-way pressure valve; 36, connecting interface; 37, cannula. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0024] Please refer to Figs. 1-3 The utility model provides a kind of implementation scheme: modern mass spectrometer is mainly divided into vacuum system, detection system and feed system, wherein feed system mainly plays into ion chamber with material spraying, it is convenient for material dispersion to form dispersed phase, existing mass spectrometer instrument mainly relies on pipe connection storage material container, realizes the control of feed rate by controlling the valve of pipe, when detecting a plurality of different group of substances, different containers need to be connected, not only operation is troublesome, and different containers need to be cleaned separately, and residual can be formed in pipe, cause interference between detection sample, affect detection result.

[0025] For the above problems, the application discloses a mass spectrometric detection auxiliary device capable of adjusting sample injection rate, the device is installed on one side of the mass spectrometer by the rack, and is specifically applied to the mass spectrometer feed port 1. The mass spectrometer feed port 1 is arranged on one side of the mass spectrometer, and a control mechanical arm 2 is arranged on one side of the spectrometer feed port. The material extraction structure 3 corresponding to the mass spectrometer feed port 1 is installed on the control mechanical arm 2. The multi-axis movement of the control mechanical arm 2 is controlled, the movement of the material extraction structure 3 is controlled, the rapid extraction of the material by the material extraction structure 3 is completed, and the feeding of the mass spectrometer is realized.

[0026] Specifically, according to the drawings in the specification Figs. 1-3 It can be known that the above-mentioned material extraction structure 3 includes an extraction cylinder 31, which is a cylindrical cavity shell. An extraction piston 32 is assembled in the extraction cylinder 31. One side of the extraction piston 32 is connected with an extraction rod 33. The end of the extraction rod 33 is connected with an extraction control push rod 34. The head end of the extraction cylinder 31 is provided with a cannula 37. A block valve 11 is arranged on the mass spectrometer feed port 1. A sealing ring is arranged on one side of the block valve 11.

[0027] Further, the material extraction structure 3 further comprises a one-way pressure valve 35, the end of the insertion pipe 37 is provided with the one-way pressure valve 35, and the mass spectrometer feed port 1 is matched with the diameter of the insertion pipe 37;

[0028] In the specific implementation process, the extraction cylinder 31 is connected with the control mechanical arm 2, the control mechanical arm 2 controls the extraction cylinder 31 to correspond to the mass spectrometer feed port 1 after the extraction of the material, and then pushes the extraction cylinder 31 to make the insertion pipe 37 inserted into the mass spectrometer feed port 1, so that the insertion pipe 37 is connected to the ion source side under the action of vacuum. The extraction control push rod 34 is used to push the extraction rod 33 to move, so that the extraction rod 33 pushes the extraction piston 32 to push the material in the extraction cylinder 31 out of the insertion pipe 37. In this process, the one-way pressure control valve plays a control role to avoid material spilling during the transfer process. The injection rate of the material can be controlled by the pushing rate of the extraction control push rod 34, and then the feeding rate of the mass spectrometer can be controlled. The cooperation of the extraction piston 32 and the extraction cylinder 31 can completely push the material out to avoid the material remaining in the extraction cylinder 31. The extraction cylinder 31 can be connected with a backwashing system to quickly clean the extraction cylinder 31, further avoid the material residue affecting the detection result. After pushing the material, the mass spectrometer feed port 1 can be sealed by the blocking valve 11 and the sealing ring.

[0029] In order to cooperate with the application of the material extraction structure 3, a placing tray 4 is arranged on one side of the control mechanical arm 2. A plurality of installation grooves are arranged in a matrix on the placing tray 4. A plurality of material pipes 5 are assembled in the installation grooves. The detection personnel places the material pipes 5 containing different control group materials on the installation grooves, and places the placing tray 4 in a fixed position. The control mechanical arm 2 drives the extraction cylinder 31 to extract the materials in the material pipes 5 in sequence according to the predetermined setting. The operation is more convenient, and the detection efficiency is improved.

[0030] As a preferred scheme, further, one side of the extraction cylinder 31 is provided with a connection interface 36, and a cleaning pipe is connected to the connection interface 36. The backwashing system connected through the cleaning pipe can backwash the extraction cylinder 31, further clean the extraction cylinder 31, and avoid material residue.

[0031] As a preferred scheme, further, the mass spectrometer feed port 1 and the insertion pipe 37 are transitionally matched, and the end of the insertion pipe 37 is provided with a bevel to facilitate the insertion of the insertion pipe 37.

[0032] As a preferred scheme, further, according to the drawings in the specification Figs. 1-3It can be known that the control mechanical arm 2 comprises a guide rail 21, which is installed on one side of the mass spectrometer feed port 1 through a rack, a sliding seat 22 connected with a linear motor is arranged on the guide rail 21, the linear motor can drive the extraction cylinder 31 to move transversely, and the extraction cylinder 31 corresponds to the positions of the placing tray 4 and the mass spectrometer feed port 1 respectively, a rotator 23 is arranged on the sliding seat 22, the rotator 23 is a turning device with a turning angle of 90°, the mass spectrometer feed port 1 is horizontal, and the opening of the material pipe 5 is horizontally upward, the posture of the extraction cylinder 31 can be adjusted through the rotator 23, the pipe 37 is inserted into the material pipe 5 and the mass spectrometer feed port 1, and then a telescopic device 24 is connected to the rotating end of the rotator 23, a connecting seat 25 is arranged on the telescopic end of the telescopic device 24, the connecting seat 25 is connected with the top of the extraction cylinder 31 through bolts, the extraction cylinder 31 can move perpendicularly to the guide rail 21 through the telescopic device 24, the position of the extraction cylinder 31 is adjusted, and the extraction cylinder 31 is more convenient for extracting materials from different material pipes 5.

[0033] As a preferred scheme, the placing tray 4 is placed below the guide rail 21.

[0034] As a preferred scheme, the placing tray 4 is placed below the guide rail 21.

[0035] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A mass spectrometry detection auxiliary device capable of adjusting the sample injection rate, comprising a mass spectrometer feed port (1), one side of the mass spectrometer feed port (1) is provided with a control mechanical arm (2), characterized in that, The control mechanical arm (2) is provided with a material extraction structure (3) corresponding to a mass spectrometer feeding port (1); The material extraction structure (3) comprises an extraction cylinder (31), which is a cavity shell in a cylindrical structure, and the extraction cylinder (31) is provided with an extraction piston (32) assembled therein, one side of the extraction piston (32) is connected with an extraction rod (33), the end of the extraction rod (33) is connected with an extraction control push rod (34), the head end of the extraction cylinder (31) is provided with a pipe (37), the mass spectrometer feeding port (1) is provided with a block valve (11), and one side of the block valve (11) is provided with a sealing ring. The material extraction structure (3) further comprises a one-way pressure valve (35), the end of the pipe (37) is provided with the one-way pressure valve (35), and the mass spectrometer feeding port (1) is matched with the diameter of the pipe (37). One side of the control mechanical arm (2) is provided with a placing tray (4), a plurality of installation grooves are arranged in a matrix on the placing tray (4), and a plurality of material pipes (5) are assembled in the installation grooves.

2. The mass spectrometry auxiliary device capable of adjusting sample injection rate according to claim 1, wherein, One side of the extraction cylinder (31) is provided with a connecting interface (36), and the connecting interface (36) is connected with a cleaning pipe.

3. The mass spectrometry auxiliary device capable of adjusting the sample injection rate according to claim 2, wherein, The mass spectrometer feeding port (1) is in transition fit with the pipe (37), and the end of the pipe (37) is provided with a bevel.

4. The mass spectrometry auxiliary device capable of adjusting the sample injection rate according to claim 3, wherein, The control mechanical arm (2) comprises a guide rail (21), the guide rail (21) is ceiling-mounted on one side of the mass spectrometer feeding port (1), the guide rail (21) is provided with a sliding seat (22) connected with a linear motor, the sliding seat (22) is provided with a rotator (23), the rotating end of the rotator (23) is connected with an extender (24), the extension end of the extender (24) is provided with a connecting seat (25), and the connecting seat (25) is connected with the top of the extraction cylinder (31) through bolts.

5. The mass spectrometry auxiliary device capable of adjusting the sample injection rate according to claim 4, wherein, The placing tray (4) is placed below the guide rail (21).

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