CN117637436B - Triple quadrupole mass spectrometer and automatic control and display system - Google Patents
Triple quadrupole mass spectrometer and automatic control and display system Download PDFInfo
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- CN117637436B CN117637436B CN202410110638.4A CN202410110638A CN117637436B CN 117637436 B CN117637436 B CN 117637436B CN 202410110638 A CN202410110638 A CN 202410110638A CN 117637436 B CN117637436 B CN 117637436B
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- 239000007788 liquid Substances 0.000 claims abstract description 69
- 238000002347 injection Methods 0.000 claims abstract description 38
- 239000007924 injection Substances 0.000 claims abstract description 38
- 230000000694 effects Effects 0.000 claims description 10
- 238000012544 monitoring process Methods 0.000 claims description 4
- 238000009826 distribution Methods 0.000 claims description 3
- 238000009792 diffusion process Methods 0.000 abstract description 11
- 238000001514 detection method Methods 0.000 abstract description 2
- 238000000926 separation method Methods 0.000 abstract 1
- 150000002500 ions Chemical class 0.000 description 84
- 238000005457 optimization Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 238000012840 feeding operation Methods 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000000451 chemical ionisation Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010894 electron beam technology Methods 0.000 description 1
- 238000004817 gas chromatography Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000010884 ion-beam technique Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
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Abstract
The invention discloses a triple quadrupole mass spectrometer and an automatic control and display system, which relates to the technical field of triple quadrupole mass spectrometers, and comprises the following components: sample injection system, the ion source, mass analyzer and detector, sample injection system includes the sample injection case, be arranged in the sample injection case and store the liquid that waits to detect, the ion source includes the ion source case, the ion source case is rectangle box body structure, the fixed setting in sample injection case one side of ion source case, the fixed guide block that is provided with on the one side inner wall that the ion source case is close to the sample injection case, can make the liquid that waits to detect in the sample injection case atomize when the atomizer starts, thereby make the better entering ion source case of atomizing liquid and contact with the filament, thereby the diffusion degree of liquid increases the area of contact of liquid and filament, can heat more area's liquid when making the filament heat, thereby the ion in all liquids of separation as far as possible, the accuracy of using the detector to detect ion flow data in the follow-up is improved.
Description
Technical Field
The invention relates to the technical field of triple quadrupole mass spectrometers, in particular to a triple quadrupole mass spectrometer and an automatic control and display system.
Background
Triple quadrupole mass spectrometers are analytical instruments used in the fields of biology, aquatic science, environmental science and technology, and resource science and technology.
In the prior art, gas or liquid is directly conveyed into an ion source during sample injection of a triple quadrupole mass spectrometer, and is heated through a filament arranged in the ion source, so that ions in the gas or liquid are separated; however, because the ion source is in a vacuum state, gas or liquid cannot be fully diffused or the contact area with the filament is maintained when entering the ion source, so that only partial ions in the gas or liquid can be separated, and certain errors exist on the ion flow data monitored by the detector; therefore, the triple quadrupole mass spectrometer and the automatic control and display system solve the problems.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a triple quadrupole mass spectrometer and an automatic control and display system, which solve the problem that partial ions in gas or liquid can only be separated out due to insufficient diffusion or contact area between the gas or liquid and a filament when the gas or liquid enters the ion source because the ion source is in a vacuum state, so that certain errors exist in ion flow data monitored by a detector.
In order to achieve the above object, the present invention provides a triple quadrupole mass spectrometer comprising: the device comprises a sample injection system, an ion source, a mass analyzer and a detector, wherein the sample injection system comprises a sample injection box, and the sample injection box is used for storing liquid to be detected;
The ion source comprises an ion source box, the ion source box is of a rectangular box body structure, the ion source box is fixedly arranged on one side of the sample box, a guide block is fixedly arranged on the inner wall of one side of the ion source box, which is close to the sample box, a guide channel and a spiral channel are arranged in the guide block, one end of the guide channel is communicated with the inside of the sample box, the other end of the guide channel is communicated with one end of the spiral channel, the other end of the spiral channel penetrates through the guide block to be far away from one side of the sample box, a filament is arranged in the ion source box and is spirally distributed, the filament is supported on the inner wall of the ion source box through a hollow support, the filament corresponds to one end of the spiral channel, the spiral track of the filament corresponds to the spiral track of the spiral channel, and one side of the ion source box, which is far away from the sample box, is communicated with one side of the sample box, is provided with a discharge pipeline.
As a further optimization of the above scheme, an atomizer for atomizing the liquid to be detected is arranged in the sample box, and the atomizer is arranged inside the lower end of the sample box.
As the further optimization of above-mentioned scheme, be provided with in the advance appearance case and promote the promotion subassembly in the direction passageway with atomizing liquid, promote the subassembly and include electric putter, movable plate and mount pad, electric putter fixed mounting is on the inner wall of advance appearance case, and electric putter transversely sets up, and electric putter is close to fixed connection between one end and the mount pad of direction passageway, the movable plate is installed in the mount pad.
As the further optimization of above-mentioned scheme, the rotatable installation of movable plate is in the mount pad, the middle part of movable plate rotates and is provided with the articulated shaft, the both ends of articulated shaft are fixed connection respectively at the both ends of mount pad, be provided with the shaft hole that supplies the articulated shaft to pass through in the movable plate, be provided with the torsional spring between the inner circle in the outer lane of articulated shaft and shaft hole, the torsional spring cover is established in the outer lane of articulated shaft, and the one end fixed connection of torsional spring is on the inner wall in shaft hole, the outer lane department of other end fixed connection at the articulated shaft.
As the further optimization of above-mentioned scheme, be provided with the pneumatic flexible subassembly of control movable plate pivoted in the advance appearance case, pneumatic flexible subassembly includes inflator, telescopic link, inflator fixed mounting is on the inner wall of advance appearance case, inflator transverse distribution, the one end activity of telescopic link stretches into the inside of inflator, and the telescopic link activity stretches into the inside one end of inflator and fixedly be provided with the limiting plate, the limiting plate is kept away from and is formed the air cavity between the inner wall of one side and the inflator of telescopic link, be provided with the spring in the air cavity, the one end fixed connection of spring is on the inner wall of one end of telescopic link is kept away from to the inflator, the other end fixed connection of spring is kept away from in the one side of telescopic link at the limiting plate, leave the clearance between one end and the movable plate surface of limiting plate is kept away from to the telescopic link, the one end that the telescopic link was kept away from to the inflator is provided with the outside pipeline of intercommunication advance appearance case and air inlet channel, all is provided with the one-way pneumatic valve in pipeline and the air inlet channel, and the diameter of air channel is less than the diameter of air channel.
As the further optimization of above-mentioned scheme, the one end lower fixed surface that limiting plate was kept away from to the telescopic link is provided with first stopper and second stopper, the second stopper is located one side that the limiting plate was kept away from to first stopper, electric putter's flexible end upper fixed surface is provided with the third stopper, the laminating of third stopper activity is close to the one side of second stopper at first stopper.
As a further optimization of the scheme, the bottom of the ion source box is provided with a vacuum generator, the vacuum generator is communicated with the inside of the ion source box, and the inner wall of the ion source box is provided with an electromagnet and a vacuum sensor.
As a further optimization of the scheme, a pressure sensor for monitoring the pressure of atomized liquid is arranged on the inner wall of the sample box at a position close to the guide channel, and a sample inlet pipeline for liquid to enter the sample box is arranged at the upper end of the sample box.
The invention also discloses an automatic control system of the triple quadrupole mass spectrometer, which comprises a controller, wherein the output end of the controller is respectively connected with the input ends of the vacuum generator and the electric push rod, and the input end of the controller is respectively connected with the output ends of the pressure sensor and the vacuum degree sensor.
The invention also discloses a display system of the triple quadrupole mass spectrometer, which comprises a display screen, wherein the output end of the controller is connected with the input end of the display screen, the input end of the controller is connected with an input module, and the input module is used for inputting and controlling the power of the vacuum generator during the work and the telescopic frequency of the electric push rod during the start.
The triple quadrupole mass spectrometer and the automatic control and display system have the following beneficial effects:
according to the triple quadrupole mass spectrometer, when the atomizer is started, liquid to be detected in the sample box can be atomized, so that atomized liquid can better enter the ion source box and contact with the filament, the diffusion degree of the liquid is improved, the contact area between the liquid and the filament is increased, more area of liquid can be heated when the filament is heated, ions in all the liquid can be separated as much as possible, and the accuracy of detecting ion flow data by using the detector in the follow-up process is improved;
According to the triple quadrupole mass spectrometer, as the guiding effect of the spiral channel is in spiral diffusion, the atomized liquid in spiral diffusion can just move along the spiral track of the filament, so that the atomized liquid can better contact with the surface of the filament, the contact area of the liquid and the filament is increased by changing the diffusion track of the atomized liquid, more area of the liquid can be heated when the filament is heated, ions in all the liquids can be separated as much as possible, and the accuracy of detecting ion flow data by using a detector in the follow-up process is improved;
according to the triple quadrupole mass spectrometer, the magnetic strength of the electromagnet can be changed, the existing fixed-strength magnetic field is replaced, and the flight speed of the electric ions can be controlled;
according to the triple quadrupole mass spectrometer, switching between a vertical state and an inclined state during sample injection and resetting of the movable plate is realized, the pushing effect is utilized, and the purpose of accelerating movement of atomized liquid in a vacuum environment is realized.
According to the automatic control system of the triple quadrupole mass spectrometer, the controller can control the electric push rod to stretch and retract to accelerate the frequency, so that atomized liquid is accelerated to enter the guide channel to realize continuous sample injection, and the purpose of sufficient sample injection is ensured.
According to the display system of the triple quadrupole mass spectrometer, when the defect of insufficient vacuum degree in the ion source box is observed through the display screen, the controller can control the vacuum generator to increase power, so that the interior of the ion source box is always kept in a vacuum state.
Specific embodiments of the invention have been disclosed in detail below with reference to the following description and drawings, indicating the manner in which the principles of the invention may be employed, it being understood that the embodiments of the invention are not limited in scope but are capable of numerous variations, modifications and equivalents within the spirit and scope of the appended claims.
Drawings
FIG. 1 is a schematic diagram of a triple quadrupole mass spectrometer of the present invention;
FIG. 2 is a schematic diagram of a sample injection system and ion source according to the present invention;
FIG. 3 is a perspective view of a sample injection system and ion source according to the present invention;
FIG. 4 is a perspective view of another view of the sample injection system and ion source of the present invention;
FIG. 5 is a schematic diagram of the internal structure of the sample injection system and ion source of the present invention;
FIG. 6 is a schematic diagram of the mobile plate in the sample injection operation state of the present invention;
Fig. 7 is a schematic view showing a state of the moving plate at the time of resetting according to the present invention;
FIG. 8 is an enlarged schematic view of the structure of FIG. 4A according to the present invention;
FIG. 9 is an enlarged schematic view of the structure of FIG. 6B in accordance with the present invention;
FIG. 10 is an enlarged schematic view of the structure of FIG. 7 at C in accordance with the present invention;
FIG. 11 is a schematic diagram of an automatic control system and a display system according to the present invention.
In the figure: the ion source box comprises a sample inlet box 1, an ion source box 2, a sample inlet pipeline 3, an exhaust pipeline 4, a vacuum generator 5, a guide block 6, a filament 7, a hollow bracket 8, a guide channel 9, a spiral channel 10, an atomizer 11, a moving plate 12, an electric push rod 13, a hinge shaft 14, a mounting seat 15, an air cylinder 16, a telescopic rod 17, a first limiting block 18, a second limiting block 19, a third limiting block 20, a limiting plate 21, a spring 22, an air cavity 23, an air outlet pipeline 24, an air inlet pipeline 25, a pressure sensor 26 and an electromagnet 27.
Detailed Description
The present invention will be further described in detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the detailed description and specific examples, while indicating the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention.
It should be noted that, when an element is referred to as being "disposed on," or having an intermediate element, it can be directly on the other element or intervening elements may be present, and when an element is referred to as being "connected to," or having an intermediate element, it may be directly connected to the other element or intervening elements may be present, and the term "fixedly connected" is used herein in a wide variety of manners and is not intended to be limiting, and the terms "vertical", "horizontal", "left", "right", and the like are used herein for illustrative purposes only and are not meant to be exclusive embodiments.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, and the terms used herein in this description are for the purpose of describing particular embodiments only and are not intended to limit the invention to any and all combinations of one or more of the associated listed items;
Referring to fig. 1-11 of the specification, the present invention provides a technical scheme: a triple quadrupole mass spectrometer comprising: the system comprises a sample injection system, an ion source, a mass analyzer and a detector; the sample injection system, the ion source, the mass analyzer and the detector are distributed in sequence, and the invention can be used for analysis in the fields of biology, aquatic science, environmental science and technology and resource science and technology.
The sample injection system is used for supplying gas and liquid into the ion source.
The ion source functions to convert sample molecules or atoms into positive ions and accelerate and focus the positive ions into an ion beam that passes through a slit into a mass analyzer.
The mass analyzer separates sample ions according to mass to charge ratio m/z in different ways.
The detector is for detecting the ion flow.
When the sample injection system is used, the sample injection system can adopt three modes: 1. diffusing the gas; 2. directly sampling; 3. gas chromatography; are common in the prior art and are not described in detail herein.
The ion source may be configured to ion the sample in four ways, namely: 1. electron bombardment; 2. chemical ionization; 3. field ionization; 4. laser ionization; are common in the prior art and are not described in detail herein.
The mass analyzer can separate sample ions by mass to charge ratio m/z in four ways, specifically: 1. single focusing; 2. double focusing; 3. time of flight; 4. quadrupole rods; are common in the prior art and are not described in detail herein.
The detector may detect the ion flow using electron multiplier means; the electron multiplier is the same as the prior art, and the electron multiplier can measure the weak current of 10 -17 A, which is not described herein.
It should be noted that, the ion source needs to be kept under vacuum, the vacuum degree is higher, the vacuum degree is usually within the range of 10 -3-10-5 Pa, if the vacuum degree is lower, the filament in the ion source is burnt, the high voltage of several kilovolts used for accelerating ions can cause discharge, cause additional ion-molecule reaction, change the cracking model, complicate the spectrogram and interfere with the normal adjustment of the electron beam in the ion source.
The vacuum in the mass analyzer is typically 10 -6 Pa.
The triple quadrupole mass spectrometer and the automatic control and display system provided by the embodiment have the following working processes:
The invention discloses a triple quadrupole mass spectrometer, comprising: sample injection system, ion source, mass analyzer and detector, sample injection system includes sample feeding case 1, be arranged in the sample feeding case 1 to store and wait to detect liquid, the ion source includes ion source case 2, ion source case 2 is rectangular box body structure, ion source case 2 is fixed to be set up in sample feeding case 1 one side, the inside of ion source case 2 is provided with filament 7, filament 7 is the heliciform and distributes, filament 7 supports at ion source case 2 inner wall through hollow support 8, sample feeding case 1 is with the liquid of waiting to detect of storage can carry into ion source case 2 and heat through filament 7, form the ion, one side intercommunication that sample feeding case 1 was kept away from to ion source case 2 is provided with discharge pipeline 4, the ion is carried to mass analyzer through discharge pipeline 4.
Considering that liquid in the ion source cannot be fully diffused or is in contact with the filament 7 in a vacuum state, an atomizer 11 for atomizing the liquid to be detected is arranged in the sample introduction box 1, the atomizer 11 is arranged in the lower end of the sample introduction box 1, the liquid to be detected in the sample introduction box 1 can be atomized when the atomizer 11 is started, so that the atomized liquid better enters the ion source box 2 and is in contact with the filament 7, the diffusion degree of the liquid is improved, the contact area of the liquid and the filament 7 is increased, more area of the liquid can be heated when the filament 7 is heated, ions in all the liquid can be separated as much as possible, and the accuracy of detecting ion flow data by using a detector in the follow-up process is improved.
Further, the ion source box 2 is close to the fixed guide block 6 that is provided with on the inner wall of one side of advance case 1, be provided with guide channel 9 and spiral channel 10 in the guide block 6, the one end of guide channel 9 communicates with advance the inside of case 1, the other end and the one end of spiral channel 10 of guide block 6 keep away from advance the one side of case 1, filament 7 corresponds in the one end that spiral channel 10 runs through guide block 6, and spiral track and the spiral track mutual correspondence of spiral channel 10 of filament 7, when the atomized liquid passes through guide channel 9 and gets into the inside of ion source box 2 along spiral channel 10, can be the heliciform diffusion because of the guide effect of spiral channel 10, and the atomized liquid that just takes the heliciform diffusion can just move along the spiral track of filament 7, make atomized liquid better with filament 7 surface contact, thereby increase the area of contact of liquid and filament 7 through the diffusion track that changes atomized liquid, can heat more area's liquid when making the heating, thereby the ion in all liquid that separates as far as possible, improve the follow-up detector and use the accuracy of detector filament 7.
The electromagnet 27 is arranged on the inner wall of the ion source box 2, charged ions fly in the presence of a magnetic field, the magnetic strength of the electromagnet 27 can be changed, the existing magnetic field with fixed strength is replaced, and the flying speed of the ions can be controlled.
Considering that the inside of the ion source box 2 is in a vacuum environment, the diffusion speed of the atomized liquid is slower during sample injection, and therefore, a pushing component for pushing the atomized liquid into the guide channel 9 is arranged in the sample injection box 1, and the pushing component can push the atomized liquid into the guide channel 9, so that the process of the atomized liquid entering the ion source box 2 is accelerated, and the sample injection speed is improved, and the detection efficiency is increased.
Specifically, the pushing assembly comprises an electric push rod 13, a moving plate 12 and a mounting seat 15, wherein the electric push rod 13 is fixedly mounted on the inner wall of the sample box 1, the electric push rod 13 is transversely arranged, one end, close to the guide channel 9, of the electric push rod 13 is fixedly connected with the mounting seat 15, the moving plate 12 is mounted in the mounting seat 15, and when the electric push rod 13 is started, the moving plate 12 is pushed to move towards the guide channel 9, so that atomized liquid is pushed into the guide channel 9.
Wherein, the rotatable installation of movable plate 12 is in mount pad 15, and the middle part of movable plate 12 rotates and is provided with articulated shaft 14, and the both ends of articulated shaft 14 are fixed connection respectively at the both ends of mount pad 15, are provided with the shaft hole that supplies articulated shaft 14 to pass through in the movable plate 12, are provided with the torsional spring between the inner circle in the outer lane of articulated shaft 14 and the shaft hole, and the torsional spring cover is established in the outer lane of articulated shaft 14, and the one end fixed connection of torsional spring is on the inner wall in shaft hole, and the other end fixed connection is in the outer lane department of articulated shaft 14.
When the moving plate 12 is in the sample feeding operation, the moving plate 12 is in a vertical state, so that more atomized liquid can be pushed into the guide channel 9.
When the moving plate 12 is reset, the moving plate 12 is in an inclined state, so that the phenomenon that atomized liquid is pushed away from the guide channel 9 when the moving plate 12 returns is reduced.
In order to realize the switching between the vertical state and the inclined state when the movable plate 12 is injected and reset, a pneumatic telescopic component for controlling the movable plate 12 to rotate is arranged in the injection box 1, the pneumatic telescopic component comprises an air cylinder 16 and a telescopic rod 17, the air cylinder 16 is fixedly arranged on the inner wall of the injection box 1, the air cylinder 16 is transversely distributed, one end of the telescopic rod 17 movably stretches into the air cylinder 16 is fixedly provided with a limiting plate 21, an air cavity 23 is formed between one surface of the limiting plate 21 far away from the telescopic rod 17 and the inner wall of the air cylinder 16, one end of the spring 22 is fixedly connected to the inner wall of one end of the air cylinder 16 far away from the telescopic rod 17, the other end of the spring 22 is fixedly connected to one surface of the limiting plate 21 far away from the telescopic rod 17, a gap is reserved between one end of the telescopic rod 17 far away from the limiting plate 21 and the surface of the movable plate 12, the movable plate 12 is vertically distributed, one end of the air cylinder 16 far away from the telescopic rod 17 is provided with an air outlet pipeline 24 and an air inlet pipeline 25 communicated with the outside the air box 1, one-way diameter of the air inlet pipeline 24 and the air inlet pipeline 25 are respectively arranged in the air cavity 23, one-way diameter of the air inlet pipeline 24 and the air inlet pipeline 25 is smaller than the air valve 25, and the air outlet pipeline 24 is fixedly connected with the air inlet pipeline; a first limiting block 18 and a second limiting block 19 are fixedly arranged on the lower surface of one end, far away from the limiting plate 21, of the telescopic rod 17, the second limiting block 19 is positioned on one side, far away from the moving plate 12, of the first limiting block 18, a third limiting block 20 is fixedly arranged on the upper surface of the telescopic end of the electric push rod 13, and the third limiting block 20 is movably attached to one surface, close to the second limiting block 19, of the first limiting block 18; when the electric push rod 13 drives the moving plate 12 to reset in the direction of the guide channel 9, the moving plate 12 is blocked by the end part of the telescopic rod 17 to incline, and when the third limiting block 20 contacts one surface of the second limiting block 19, which is close to the first limiting block 18, the telescopic rod 17 is driven to reset, so that the moving plate 12 is kept in an inclined state when reset.
The torsion spring at the outer ring of the hinge shaft 14 is used to apply elastic force to the moving plate 12 so that the moving plate 12 is always in a vertical state.
When the movable plate 12 performs the sample feeding operation, the diameter of the air inlet pipeline 25 is larger, so that the air cavity 23 can be rapidly supplemented with air, and no too large resistance is caused to the sample feeding operation of the movable plate 12.
When the movable plate 12 is reset, the air in the air cavity 23 can only be slowly discharged through the air outlet pipeline 24 due to the smaller diameter of the air outlet pipeline 24, namely, the capability of the telescopic rod 17 for quickly resetting into the air cylinder 16 is limited, so that the third limiting block 20 can be always attached to the second limiting block 19 in the process of resetting the movable plate 12 by the electric push rod 13, and the movable plate 12 is ensured to be in an inclined state.
The bottom of the ion source box 2 is provided with a vacuum generator 5, the vacuum generator 5 is communicated with the inside of the ion source box 2, the inner wall of the ion source box 2 is provided with a vacuum degree sensor, the vacuum generator 5 is used for vacuumizing the inside of the ion source box 2, the vacuum degree sensor is not shown in the figure, and the vacuum degree sensor is used for monitoring the vacuum degree in the ion source box 2 and is not described in detail herein for the prior art.
Still further, a pressure sensor 26 for monitoring the pressure of atomized liquid is arranged on the inner wall of the sample box 1 at a position close to the guide channel 9, and a sample feeding pipeline 3 for allowing liquid to enter the sample box 1 is arranged at the upper end of the sample box 1.
The invention also discloses an automatic control system of the triple quadrupole mass spectrometer, which comprises a controller, wherein the output end of the controller is respectively connected with the input ends of the vacuum generator 5 and the electric push rod 13, the input end of the controller is respectively connected with the output ends of the pressure sensor 26 and the vacuum degree sensor, when the pressure sensor 26 monitors that the pressure of atomized liquid is lower than a set threshold value, the expansion frequency of the electric push rod 13 can be controlled by the controller to be accelerated, so that the atomized liquid can be accelerated to enter the guide channel 9 to realize continuous sample injection, and the purpose of sufficient sample injection is ensured.
The invention realizes the purpose of accelerating the movement of atomized liquid in a vacuum environment by utilizing the pushing effect.
The invention also discloses a display system of the triple quadrupole mass spectrometer, which comprises a display screen, wherein the output end of the controller is connected with the input end of the display screen, the input end of the controller is connected with an input module, the input module is used for inputting and controlling the power of the vacuum generator during working and the stretching frequency of the electric push rod during starting, the display screen is used for displaying the pressure of atomized liquid and the vacuum degree in the ion source box 2, and when the display screen is used for observing that the vacuum degree in the ion source box 2 is insufficient, the controller can control the vacuum generator 5 to increase the power, so that the interior of the ion source box 2 is always kept in a vacuum state.
It should be understood that the invention is not limited to the preferred embodiments, but is intended to cover modifications, equivalents, or alternatives falling within the spirit and principles of the invention.
Claims (10)
1. A triple quadrupole mass spectrometer comprising: the device is characterized by comprising a sample injection system, an ion source, a mass analyzer and a detector, wherein the sample injection system comprises a sample injection box (1), and the sample injection box (1) is used for storing liquid to be detected;
The utility model provides an ion source includes ion source case (2), ion source case (2) are rectangle box body structure, and ion source case (2) are fixed to be set up in sample introduction case (1) one side, and ion source case (2) are close to fixedly on one side inner wall of sample introduction case (1) and are provided with guide block (6), be provided with guide way (9) and helical channel (10) in guide block (6), the one end and the inside intercommunication of sample introduction case (1) of guide way (9), the other end and the one end intercommunication of helical channel (10) of guide way (9), the one side that sample introduction case (1) was kept away from to guide block (6) is run through to the other end of helical channel (10), the inside of ion source case (2) is provided with filament (7), filament (7) are the heliciform and distribute, and filament (7) are supported at ion source case (2) inner wall through hollow support (8), and guide way (6) are run through in helical channel (10) one end of guide block (6), and the spiral track and helical track (7) correspond with helical channel (10) and helical channel (4) and are kept away from sample introduction case (1) each other, filament (4) are discharged to the intercommunication.
2. A triple quadrupole mass spectrometer according to claim 1, wherein: an atomizer (11) for atomizing liquid to be detected is arranged in the sample box (1), and the atomizer (11) is arranged inside the lower end of the sample box (1).
3. A triple quadrupole mass spectrometer according to claim 2, wherein: be provided with the promotion subassembly in pushing atomized liquid to direction passageway (9) in sample introduction case (1), promote the subassembly and include electric putter (13), movable plate (12) and mount pad (15), electric putter (13) fixed mounting is on the inner wall of sample introduction case (1), and electric putter (13) transversely set up, and electric putter (13) are close to fixed connection between one end and mount pad (15) of direction passageway (9), movable plate (12) are installed in mount pad (15).
4. A triple quadrupole mass spectrometer according to claim 3, wherein: the movable plate (12) is rotatably arranged in the mounting seat (15), the hinge shaft (14) is rotatably arranged in the middle of the movable plate (12), two ends of the hinge shaft (14) are fixedly connected to two ends of the mounting seat (15) respectively, a shaft hole for the hinge shaft (14) to pass through is formed in the movable plate (12), a torsion spring is arranged between the outer ring of the hinge shaft (14) and the inner ring of the shaft hole, the torsion spring is sleeved on the outer ring of the hinge shaft (14), one end of the torsion spring is fixedly connected to the inner wall of the shaft hole, and the other end of the torsion spring is fixedly connected to the outer ring of the hinge shaft (14).
5. A triple quadrupole mass spectrometer according to claim 4, wherein: the utility model discloses a sample introduction box, including sample introduction box (1), be provided with the pneumatic flexible subassembly of control movable plate (12) pivoted in sample introduction box (1), pneumatic flexible subassembly includes gas cylinder (16), telescopic link (17), gas cylinder (16) fixed mounting is on the inner wall of sample introduction box (1), gas cylinder (16) lateral distribution, the one end activity of telescopic link (17) stretches into the inside of gas cylinder (16), and the one end activity of telescopic link (17) stretches into gas cylinder (16) inside is fixed to be provided with limiting plate (21), form air cavity (23) between one side that telescopic link (17) were kept away from and the inner wall of gas cylinder (16), be provided with spring (22) in air cavity (23), the one end fixed connection of spring (22) is on the inner wall that telescopic link (17) were kept away from to gas cylinder (16), the other end fixed connection of spring (22) is kept away from one side of telescopic link (17) at limiting plate (21), the one end that telescopic link (17) kept away from limiting plate (21) and movable plate (12) surface between clearance, movable plate (12) vertical distribution, one end that telescopic link (17) kept away from (17) and one end that one end (24) were kept away from in telescopic link (17) and one end (24) are provided with in the one-way air inlet valve (25) and one end (25) of air inlet channel (1) are all connected to one-way in the air inlet channel (1), the diameter of the air outlet pipe (24) is smaller than the diameter of the air inlet pipe (25).
6. A triple quadrupole mass spectrometer according to claim 5, wherein: the telescopic rod (17) is kept away from one end lower fixed surface of limiting plate (21) and is provided with first stopper (18) and second stopper (19), second stopper (19) are located one side that limiting plate (12) were kept away from to first stopper (18), fixed surface is provided with third stopper (20) on the flexible end of electric putter (13), the one side that limiting plate (19) were close to in first stopper (18) is laminated in the activity of third stopper (20).
7. A triple quadrupole mass spectrometer according to claim 1, wherein: the bottom of ion source case (2) is provided with vacuum generator (5), vacuum generator (5) communicate in the inside of ion source case (2), be provided with electro-magnet (27) and vacuum sensor on the inner wall of ion source case (2).
8. A triple quadrupole mass spectrometer according to claim 7, wherein: the position on the inner wall of the sample introduction box (1) close to the guide channel (9) is provided with a pressure sensor (26) for monitoring the pressure of atomized liquid, and the upper end of the sample introduction box (1) is provided with a sample introduction pipeline (3) for liquid to enter the sample introduction box (1).
9. An automatic control system of a triple quadrupole mass spectrometer, characterized in that: the triple quadrupole mass spectrometer of claim 8, further comprising a controller, wherein the output end of the controller is respectively connected with the input ends of the vacuum generator (5) and the electric push rod (13), and the input ends of the controller are respectively connected with the output ends of the pressure sensor (26) and the vacuum degree sensor.
10. A display system for a triple quadrupole mass spectrometer, characterized by: the automatic control system comprising the triple quadrupole mass spectrometer of claim 9, further comprising a display screen, wherein the output end of the controller is connected with the input end of the display screen, the input end of the controller is connected with an input module, and the input module is used for inputting and controlling the power of the vacuum generator during operation and the telescopic frequency of the electric push rod during starting.
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