Mass spectrometer and ion processing device

Abstract

The invention discloses a mass spectrometer and an ion processing device.The mass spectrometer comprises an ion source, the ion processing device, a transmission device and a detection device.The ion source is used for generating charged ions, the ion processing device is arranged at the output end of the ion source, and the ion processing device comprises a first base body, a second base body, a connecting piece and a heating assembly; the first base body is close to the ion source and is provided with an ion inlet, the second base body is provided with an ion outlet, the first base body and the second base body are arranged in a spaced mode to form a containing space, and the first base body and the second base body are connected with a power source so that an electromagnetic field can be formed between the first base body and the second base body; the electromagnetic field can be used for providing kinetic energy for the charged ions in the accommodating space, so that the charged ions can be transmitted through the ion transmission channel; the heating assembly is used for heating the medium in the accommodating space, the transmission channel is used for transmitting the charged ions processed by the ion processing device, and the detection device is used for analyzing the charged ions transmitted by the transmission device.

Description

TECHNICAL FIELD

[0001] The present application relates to an ion detection device, in particular to a mass spectrometer and an ion processing device. BACKGROUND

[0002] In the related art, a mass spectrometer is used to decompose a substance to be detected into ions, and separates and detects based on the mass difference between a plurality of ions to generate a corresponding mass spectrum. In the process of generating ion groups and transmitting the ion groups to a detection device, the ion groups will attach solvent molecules and cluster ions. Therefore, an ion processing device is needed to remove the solvent molecules and cluster ions on the ion groups to improve the stability of the mass spectrometer analysis. SUMMARY

[0003] The present application aims to at least solve one of the technical problems existing in the prior art. To this end, the present application proposes a mass spectrometer to improve the stability of the mass spectrometer analysis.

[0004] The mass spectrometer according to the first aspect of the present application comprises an ion source, an ion processing device, a transmission device, and a detection device.

[0005] The ion source is used to generate charged ions;

[0006] The ion processing device is arranged at the output end of the ion source. The ion processing device comprises a first base, a second base, a connecting piece, and a heating assembly. The first base is close to the ion source and forms an ion inlet. The second base forms an ion outlet and is arranged apart from the first base to form an accommodation space. At least one of the first base and the second base forms a ventilation structure. The first base and the second base are respectively connected to a power supply to form an electromagnetic field between the first base and the second base. The connecting piece connects the first base and / or the second base and forms an ion transmission port. The ion transmission port communicates with the accommodation space through the ion outlet to form an ion transmission channel between the ion inlet and the ion transmission port. The electromagnetic field can provide kinetic energy to the charged ions in the accommodation space so that the charged ions can be transmitted through the ion transmission channel. The heating assembly is at least partially arranged in the accommodation space and is used to heat the medium in the accommodation space;

[0007] The transmission device is arranged at the side of the ion processing device close to the connecting piece. The transmission device forms at least one transmission channel. The transmission channel communicates with the ion channel through the ion transmission port. The transmission channel is used to transmit the charged ions processed by the ion processing device;

[0008] The detection device is used to analyze the charged ions transmitted by the transmission device.

[0009] According to some embodiments of the present application, a ventilation passage is formed between the ventilation structure and the ion inlet, and the ion processing device further comprises a wind resistance component, which is arranged in the ventilation passage between the ventilation structure and the ventilation structure.

[0010] Alternatively, the ventilation structure comprises a first ventilation opening and a second ventilation opening, and a ventilation passage is formed between the first ventilation opening and the second ventilation opening. The ion processing device further comprises a wind resistance component, which is arranged in the ventilation passage between the ventilation structure and the ventilation structure.

[0011] According to some embodiments of the present application, the wind resistance component is arranged on the first base body and protrudes towards one side of the second base body; and / or,

[0012] the wind resistance component is arranged on the second base body and protrudes towards one side of the first base body; and / or,

[0013] the wind resistance component is arranged on the heating assembly, and the part of the wind resistance component arranged in the accommodation space protrudes towards one side of the first base body.

[0014] According to some embodiments of the present application, the ventilation passage comprises a first passage and a second passage, the wind resistance component is arranged between the first passage and the second passage, the first passage is in communication with the ventilation structure, and the second passage is in communication with the ion inlet.

[0015] The charged ions are transmitted in a first direction in the ion transmission passage, the second passage extends in a second direction, and the first direction and the second direction form an included angle, which is less than 90°.

[0016] According to some embodiments of the present application, the first base body comprises a first side wall, and the second base body comprises a second side wall. The first side wall near the ion inlet and the second side wall near the ion outlet jointly form the second passage.

[0017] The distance between the first side wall and the second side wall forming the second passage gradually decreases towards the direction close to the ion inlet.

[0018] According to some embodiments of the present application, the connecting member is provided with a first fitting part and a second fitting part, and the second base body is provided with a third fitting part.

[0019] The first fitting part protrudes towards one side of the first base body on the connecting member, the connecting member is detachably connected to the first base body through the first fitting part, and the first fitting part has a ring structure.

[0020] The second adapter is protruded from one side of the connecting member towards the second base, the second adapter is located inside the first adapter and there is a gap between the first adapter and the second adapter, and the third adapter is protruded from one side of the second base towards the connecting member, the third adapter is adapted to be assembled in the gap to make the connecting member and the second base structure clamped in the first direction.

[0021] According to some embodiments of the present application, the ventilation structure is formed on the second base and located at the outer circumferential side of the third adapter, the connecting member is formed with an air hole penetrating through the connecting member in the first direction, the ventilation structure, the first channel, the second channel and the ion inlet are sequentially communicated and combined to form the ventilation channel, and the air hole is communicated with the ventilation channel for connecting the ventilation channel and the air supply device.

[0022] According to some embodiments of the present application, a heating assembly is introduced, the heating assembly is arranged on the second base close to one side of the first base, and the heating assembly has at least two heating surfaces exposed in the second channel, and the heating surfaces are used to provide heat for the second channel.

[0023] According to some embodiments of the present application, the aperture of the ion inlet is larger than the aperture of the ion outlet.

[0024] The second aspect of the present application provides an ion processing device applied to a mass spectrometer and used for processing charged ions output by an ion source of the mass spectrometer, the ion processing device comprising: a first base, a second base, a connecting member and a heating assembly;

[0025] The first base is close to the ion source and is formed with an ion inlet, the second base is formed with an ion outlet and is arranged apart from the first base to form a containing space, at least one of the first base and the second base is formed with a ventilation structure, and the first base and the second base are respectively connected to a power supply to form an electromagnetic field between the first base and the second base.

[0026] The connecting member connects the first base and / or the second base and is formed with an ion transmission port, the ion transmission port is communicated with the containing space through the ion outlet to form an ion transmission channel between the ion inlet and the ion transmission port, and the electromagnetic field can be used to provide kinetic energy for the charged ions in the containing space so that the charged ions can be transmitted through the ion transmission channel.

[0027] The heating assembly is at least partially arranged in the containing space and is used to heat the medium in the containing space.

[0028] According to some embodiments of the present application, a ventilation passage is formed between the ventilation structure and the ion inlet, and the ion processing device further comprises a wind resistance component, which is arranged in the ventilation passage between the ventilation structure and the ventilation structure.

[0029] Alternatively, the ventilation structure comprises a first ventilation opening and a second ventilation opening, and a ventilation passage is formed between the first ventilation opening and the second ventilation opening, and the ion processing device further comprises a wind resistance component, which is arranged in the ventilation passage between the ventilation structure and the ventilation structure.

[0030] According to some embodiments of the present application, the wind resistance component is arranged on a side of the first base body facing the second base body; and / or,

[0031] the wind resistance component is arranged on a side of the second base body facing the first base body; and / or,

[0032] the wind resistance component is arranged on a side of the heating assembly inside the accommodation space and facing the first base body.

[0033] According to some embodiments of the present application, the ion inlet has a larger aperture than the ion outlet.

[0034] Additional aspects and advantages of the present application will be given in part in the following description, become apparent from the following description, or be learned by practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0035] The present application will be further described below in conjunction with the drawings and embodiments, wherein:

[0036] Figure 1 FIG. 1 is a perspective view of a mass spectrometer according to an embodiment of the present application;

[0037] Figure 2 FIG. 2 is a plan view of the mass spectrometer according to an embodiment of the present application;

[0038] Figure 3 FIG. 3 is a sectional view of the mass spectrometer according to an embodiment of the present application at mark A-A in FIG. 1; Figure 2

[0039] FIG. 4 is a sectional view of the mass spectrometer according to an embodiment of the present application at mark A-A in FIG. 1, with the first base body removed; Figure 4 Figure 2 FIG. 5 is an exploded view of the mass spectrometer according to an embodiment of the present application.

[0040] Figure 5

[0041] ​​100, ion processing device; 110, first base body; 111, first side wall; 112, connecting wall; 113, clamping groove; 114, ion inlet; 115, wind resistance component; 120, ventilation channel; 121, first channel; 122, second channel; 130, second base body; 131, second side wall; 132, ion outlet; 133, ventilation structure; 134, third adapting part; 135, fourth adapting part; 140, connecting piece; 141, ion transmission port; 142, first adapting part; 143, clamping piece; 144, second adapting part; 145, air hole; 146, sealing ring; 147, sink groove; 148, positioning column; 150, heating assembly; 151, heating ring; 152, heating wire; 153, heating joint; 154, fixing piece. DETAILED DESCRIPTION

[0042] Embodiments of the present application are described below in detail with reference to the accompanying drawings, wherein the same or similar components or components having the same or similar functions are denoted by the same or similar reference numerals throughout. The embodiments described below by reference to the accompanying drawings are exemplary and are intended only for the purpose of explaining the present application, and should not be construed as limiting the present application.

[0043] In the description of the present application, it should be understood that the orientation description, such as the orientation or position relationship indicated by up, down, front, back, left, right, etc. is based on the orientation or position relationship shown in the drawings, and is only for the purpose of facilitating the description of the present application and simplifying the description, and does not indicate or imply that the device or component referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present application.

[0044] In the description of the present application, if the meaning of several is more than one, the meaning of multiple is more than two, greater than, less than, more than, etc. are understood as not including the number, above, below, etc. are understood as including the number. If it is described as first, second, it is only for the purpose of distinguishing technical features, and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or the order of technical features indicated.

[0045] In the description of the present application, unless otherwise explicitly limited, the words such as setting, mounting, connecting, etc. should be broadly understood, and those skilled in the art can reasonably determine the specific meaning of the above words in the present application in combination with the specific content of the technical solution.

[0046] In the description of the application, the description of the terms "one embodiment", "some embodiments", "exemplary embodiment", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the application. In the description, the exemplary description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any suitable manner in one or more embodiments or examples.

[0047] Please refer to Figure 3 、 Figure 4 , the first aspect of the application proposes a mass spectrometer, the mass spectrometer comprises an ion source, an ion processing device 100, a transmission device and a detection device, the ion processing device 100 is arranged at the output end of the ion source, the transmission device is arranged at the output end of the ion transmission device, the transmission device is formed with at least one transmission channel, the transmission channel is used for transmitting the charged ions processed by the ion processing device 100, the sample to be detected is decomposed into charged ion groups by the ion source, some solvents and other media are easily attached to the charged ion groups, and cluster ions which affect the stability of detection are easily present in the charged ion groups, the generated charged ion groups are transported to the transmission device after removing the media in the charged ion groups by the ion processing device 100, and the charged ion groups are analyzed by the detection device after being transmitted to the detection device by the transmission device, so as to generate a mass spectrum. The setting of the ion processing device 100 improves the stability of the analysis of the charged ion groups by the detection device in the mass spectrometer.

[0048] The ion source is used to generate charged ions, wherein the ion source can be an electrospray ion source, an electron impact ion source or a chemical ion source.

[0049] The ion processing device 100 comprises a first base body 110, a second base body 130, a connecting piece 140 and a heating assembly 150, the first base body 110 is close to the ion source and is formed with an ion inlet 114, the second base body 130 is formed with an ion outlet 132, the first base body 110 and the second base body 130 are respectively connected to a power supply, so as to form an electromagnetic field between the first base body 110 and the second base body 130, the connecting piece 140 connects the first base body 110 and / or the second base body 130, and is formed with an ion transmission port 141, the ion transmission port 141 communicates with the containing space through the ion outlet 132, so as to form an ion transmission channel between the ion inlet 114 and the ion transmission port 141, the electromagnetic field can be used to provide kinetic energy for the charged ions in the containing space, so that the charged ions can be transmitted through the ion transmission channel, and the heating assembly 150 is at least partially arranged in the containing space and is used to heat the medium in the containing space, so as to evaporate the medium and facilitate the separation of the charged ions and the medium.

[0050] There are cluster ions in the charged ion clusters generated by the ion source that can affect the analysis of the detection device. Since the cluster ions move relatively slower than other charged ions in the electromagnetic field, the charged ion clusters are separated from the cluster ions under the action of the electromagnetic field during their movement in the ion transmission channel, thereby reducing the impact of the cluster ions on the analysis of the detection device.

[0051] The voltage applied to the first substrate 110 may be between 520V and 540V, and the voltage applied to the second substrate 130 may be between 190V and 210V. The applied voltages may also be set according to actual needs.

[0052] The first substrate 110 and the second substrate 130 are spaced apart to form a accommodating space. At least one of the first substrate 110 and the second substrate 130 is formed with a ventilation structure 133. Gas is input into the accommodating space through the ventilation structure 133 to generate an airflow, so as to blow the solution attached to the charged ion cluster out of the accommodating space to reduce the solution attached to the charged ion cluster.

[0053] In some embodiments of the present application, the aperture of the ion inlet 114 is larger than the aperture of the ion outlet 132. Since the detection device in the mass spectrometer needs to operate in a high vacuum environment, the aperture of the ion outlet 132 is reduced to prevent or reduce the passage of a large amount of gas, thereby improving the stability of the mass spectrometer.

[0054] In some embodiments, a ventilation channel 120 is formed between the ventilation structure 133 and the ion inlet 114. Through the ventilation channel 120 formed by the ventilation structure 133 and the ion inlet 114, the solution attached to the charged ion clusters is blown toward the ion inlet 114 and discharged out of the accommodating space through the ion inlet 114. The ion processing device 100 also includes a wind resistance component 115. The wind resistance component 115 is disposed within the ventilation channel 120 between the ventilation structure 133 and the ion inlet 114. The wind resistance component 115 is disposed to reduce the wind force generated within the ventilation channel 120, thereby reducing the impact of the wind force on the charged ion clusters.

[0055] Alternatively, the ventilation structure 133 comprises a first ventilation opening and a second ventilation opening, a ventilation passage 120 is formed between the first ventilation opening and the second ventilation opening, one of the first ventilation opening and the second ventilation opening is arranged on the second base body 130, and the other is arranged on the first base body 110, the ventilation passage 120 is formed through the second ventilation opening and the first ventilation opening, after the charged ion group enters the accommodation space from the ion inlet 114, the solution attached to the charged ion group is discharged to the outside of the accommodation space through one of the second ventilation opening and the first ventilation opening. The ion treatment device 100 further comprises a wind resistance component 115 arranged in the ventilation passage 120 between the ventilation structure 133 and the ventilation structure 133. The wind resistance component 115 is arranged to reduce the wind force generated in the ventilation passage 120 and reduce the influence of the wind force on the charged ion group.

[0056] In the embodiments of the present application, the following are explained on the premise that the ion inlet 114 and the ventilation structure 133 form the ventilation passage 120.

[0057] The wind resistance component 115 can be located on the side of the first base body 110 facing the second base body 130, or the wind resistance component 115 can also be located on the side of the second base body 130 facing the first base body 110, or the wind resistance component 115 can be located on the heating assembly 150, and the part of the wind resistance component 115 located in the accommodation space protrudes towards the side of the first base body 110.

[0058] The wind resistance component 115 can be arranged on different structural members according to the processing conditions, and is used to shield part of the wind force in the ventilation passage 120 to reduce the influence of the wind force on the charged ions. In the embodiments of the present application, the wind resistance component 115 is formed on the side of the first base body 110 facing the second base body 130.

[0059] The wind resistance component 115 is specifically an annular structure, and is arranged around the outer circumferential side of the ion inlet 114. After the first base body 110, the second base body 130 and the connecting member 140 are assembled, there is a gap between the wind resistance component 115 and the second base body 130, so that the wind force can pass through the ventilation passage 120.

[0060] In some embodiments of the present application, the ventilation passage 120 comprises a first passage 121 and a second passage 122, the wind resistance component 115 is located between the first passage 121 and the second passage 122, the first passage 121 is in communication with the ventilation structure 133, and the second passage 122 is in communication with the ion inlet 114. The ventilation passage 120 is divided into the first passage 121 and the second passage 122 by the wind resistance component 115, so that the wind force blows the solution attached to the charged ion group in the second passage 122 and reduces the wind force after entering the first passage 121, thereby reducing the influence on the charged ion group.

[0061] The transmission direction of the charged ions in the ion transmission channel is a first direction, the extension direction of the second channel 122 is a second direction, the first direction and the second direction have an included angle, and the included angle is less than 90°. The second channel 122 extends obliquely towards the direction away from the second base body 130, so that the wind is more easily blown towards the ion inlet 114 in the second channel 122, so that the solution attached to the charged ion group is easily discharged from the ion inlet 114.

[0062] The first base body 110 includes a first side wall 111, and the second base body 130 includes a second side wall 131. The first side wall 111 near the ion inlet 114 and the second side wall 131 near the ion outlet 132 jointly form the second channel 122. The distance between the first side wall 111 and the second side wall 131 forming the second channel 122 gradually decreases towards the direction close to the ion inlet 114, so that the wind is more easily flowed to the ion inlet 114.

[0063] In some embodiments of the present application, the connecting piece 140 is provided with a first adapter 142 and a second adapter 144, and the second base body 130 is provided with a third adapter 134. The first adapter 142 is protruded on the connecting piece 140 towards one side of the first base body 110, and the connecting piece 140 is detachably connected with the first base body 110 through the first adapter 142. The first adapter 142 is in a ring structure, and the first base body 110 includes a connecting wall 112 for adapting with the first adapter 142. The first adapter 142 is provided with a clamping piece 143 in a spherical structure, and at least part of the clamping piece 143 is exposed outside the first adapter 142. The connecting wall 112 is in a ring structure, and the inner side of the connecting wall 112 is provided with a clamping groove 113 corresponding to the clamping piece 143. The first base body 110 and the connecting piece 140 are adapted and assembled through the clamping piece 143 and the clamping groove 113.

[0064] The second adapter 144 is protruded on the connecting piece 140 towards one side of the second base body 130, and the second adapter 144 is located inside the first adapter 142 with a gap between the first adapter 142 and the second adapter 144. The third adapter 134 is protruded on the second base body 130 towards one side of the connecting piece 140, and the third adapter 134 is adapted to be assembled in the gap, so that the connecting piece 140 and the second base body 130 are structurally clamped in the first direction. The first adapter 142, the second adapter 144 and the third adapter 134 are provided to facilitate the mutual assembly of the first base body 110, the second base body 130 and the connecting piece 140. The second base body 130 and the connecting piece 140 are also fixedly assembled through bolts.

[0065] The fourth adapter 135 is formed on the second base 130 and faces the first base 110, and is in the form of a ring-shaped platform and located in the first channel 121. The fourth adapter 135 can block part of the wind in the first channel 121, reducing the influence of the wind on the charged ion groups.

[0066] Please refer to Figure 1 、 Figure 2 The connecting piece 140 is further provided with a positioning column 148 on the side away from the second base 130. The positioning column 148 is used to form a positioning connection with the device body of the mass spectrometer when the ion processing device 100 is assembled in the mass spectrometer.

[0067] In an embodiment of the present application, the ventilation structure 133 is formed on the second base 130 and located on the outer circumferential side of the third adapter 134. The connecting piece 140 is provided with a gas hole 145 penetrating the connecting piece 140 in the first direction. The ventilation structure 133, the first channel 121, the second channel 122, and the ion inlet 114 are sequentially connected and combined to form a ventilation channel 120. The gas hole 145 is connected to the ventilation channel 120 for connecting the ventilation channel 120 and the gas supply device. The gas hole 145 is further provided with a sealing ring 146 on the side away from the second base 130. The gas hole 145 is used to connect with the gas supply device. The gas supply device is used to inject gas into the gas hole 145 to generate a gas flow. The gas flow blows the solution attached to the charged ion groups out of the ion processing device 100 along the sequence of the first channel 121, the second channel 122, and the ion inlet 114, so as to separate the charged ion groups from the solution or other medium attached thereto.

[0068] Please refer to Figure 4 、 Figure 5 In an embodiment of the present application, the heating assembly 150 is arranged on the second base 130 and close to the first base 110. The heating assembly 150 has at least two heating surfaces exposed in the second channel 122. The heating surfaces are used to provide heat for the second channel 122. The heating assembly 150 specifically includes a heating ring 151, a heating wire 152, and a fixing piece 154. The heating ring 151 is in the form of a ring. Most of the structure of the heating ring 151 is located in the first channel 121. The heating ring 151 provides heat for the accommodation space to evaporate the solution attached to the charged ion groups, so as to facilitate the wind to blow away the solution or other medium. The heating ring 151 can also block the wind in the first channel 121.

[0069] The fixing member 154 is a ring structure and is sleeved on the second base 130. The fixing member 154 is located on the side of the heating ring 151 away from the second base 130 and is used to fix the heating ring 151. The fixing member 154 is located at the communication between the first channel 121 and the second channel 122 and reduces the size of the channel at this position, thereby reducing the wind force in the first channel 121 and reducing the influence on the charged ion groups.

[0070] The connecting member 140 is provided with a plurality of grooves 147 on the side close to the second base 130. The heating wire 152 is arranged in the grooves 147. One end of the heating wire 152 is exposed on the side of the connecting member 140 away from the second base 130 and forms a heating joint 153, which is used to connect a power source or other energy source to transfer heat. The other end of the heating wire 152 is connected to the heating ring 151 and the first base 110, so that the heating ring 151 and the first base 110 have the function of generating heat. Since the heating wire 152 is arranged inside the ion processing device 100, the heating wire 152 is not prone to damage. Since the first base 110, the second base 130 and the connecting member 140 are detachably connected, the maintenance or replacement of the heating wire 152 is facilitated.

[0071] The second aspect of the application further provides an ion processing device 100. It can be understood that the ion processing device 100 is the same as the ion processing device 100 in the mass spectrometer of the first aspect of the application, and will not be repeated here.

[0072] The embodiments of the application are described in detail above in combination with the drawings, but the application is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the purpose of the application. In addition, the embodiments of the application and the features in the embodiments can be combined with each other without conflict.

Claims

1. A mass spectrometer, characterized in that include: an ion source for generating charged ions; An ion processing device is arranged at the output end of the ion source; the ion processing device includes a first substrate, a second substrate, a connector, and a heating assembly, wherein the first substrate is close to the ion source and is formed with an ion inlet, the second substrate is formed with an ion outlet, and is spaced apart from the first substrate to form a accommodating space, and at least one of the first substrate and the second substrate is formed with a ventilation structure; and the first substrate and the second substrate are respectively connected to a power supply so that an electromagnetic field is formed between the first substrate and the second substrate; the connector connects the first substrate and / or the second substrate and is formed with an ion transmission port, the ion transmission port is connected to the accommodating space through the ion outlet, so that an ion transmission channel is formed between the ion inlet and the ion transmission port, and the electromagnetic field can be used to provide kinetic energy to the charged ions in the accommodating space so that the charged ions can be transmitted through the ion transmission channel; the heating assembly is at least partially disposed in the accommodating space and is used to heat the medium in the accommodating space; a transmission device, disposed on a side of the ion processing device close to the connecting member, the transmission device forming at least one transmission channel, the transmission channel being connected to the ion channel through the ion transmission port, the transmission channel being used to transmit the charged ions processed by the ion processing device; A detection device is used to analyze the charged ions transmitted by the transmission device.

2. The mass spectrometer according to claim 1, wherein A ventilation channel is formed between the ventilation structure and the ion inlet, and the ion processing device further includes a wind resistance component, which is arranged in the ventilation channel between the ventilation structure and the ion inlet; Alternatively, the ventilation structure includes a first ventilation hole and a second ventilation hole, a ventilation channel is formed between the first ventilation hole and the second ventilation hole, and the ion processing device further includes a wind resistance component, which is arranged in the ventilation channel between the first ventilation hole and the second ventilation hole.

3. The mass spectrometer according to claim 2, characterized in that The wind resistance component is located on the first base and protrudes toward one side of the second base; and / or, The wind resistance component is located on the second base body and protrudes toward one side of the first base body; and / or, The wind resistance component is located on the heating assembly, and a portion of the wind resistance component located in the accommodating space is protruded toward one side of the first base.

4. The mass spectrometer according to claim 2, wherein The ventilation channel includes a first channel and a second channel, the wind resistance component is located between the first channel and the second channel, the first channel is communicated with the ventilation structure, and the second channel is communicated with the ion inlet; The transport direction of the charged ions in the ion transport channel is a first direction, the extension direction of the second channel is a second direction, and an angle is formed between the first direction and the second direction, and the angle is less than 90°.

5. The mass spectrometer according to claim 4, characterized in that The first substrate includes a first side wall, the second substrate includes a second side wall, and the first side wall near the ion inlet and the second side wall near the ion outlet together form the second channel; The distance between the first side wall and the second side wall forming the second channel gradually decreases toward the ion inlet.

6. The mass spectrometer according to claim 4, characterized in that The connecting member is provided with a first adapter portion and a second adapter portion, and the second base is provided with a third adapter portion; The first adapter portion is protruded from the connecting member on a side facing the first base, the connecting member is detachably connected to the first base via the first adapter portion, and the first adapter portion is an annular structure; The second adapter portion is protruded from the connecting member on a side facing the second base, the second adapter portion is located on the inner side of the first adapter portion and there is a gap between the first adapter portion and the second adapter portion, the third adapter portion is protruded from the second base on a side facing the connecting member, and the third adapter portion is suitable for being assembled in the gap so that the connecting member and the second base are structured in the first direction.

7. The mass spectrometer according to claim 6, characterized in that The ventilation structure is formed on the second substrate and is located on the outer peripheral side of the third adapter. The connecting piece is formed with an air hole that passes through the connecting piece in the first direction. The ventilation structure, the first channel, the second channel and the ion inlet are connected in sequence and combined to form the ventilation channel. The air hole connects the ventilation channel for connecting the ventilation channel and the air supply device.

8. The mass spectrometer according to claim 6, characterized in that A heating component is introduced, which is arranged on the second substrate near the first substrate, and the heating component has at least two heating surfaces exposed in the second channel, and the heating surfaces are used to provide heat in the second channel.

9. The mass spectrometer according to any one of claims 1 to 8, characterized in that The aperture of the ion inlet is larger than the aperture of the ion outlet.

10. An ion processing device, characterized in that: The device is applied to a mass spectrometer and is used to process charged ions outputted from an ion source of the mass spectrometer. The ion processing device comprises: a first substrate, a second substrate, a connecting piece and a heating assembly; The first substrate is close to the ion source and is formed with an ion inlet, the second substrate is formed with an ion outlet and is spaced apart from the first substrate to form an accommodating space, and at least one of the first substrate and the second substrate is formed with a ventilation structure; and the first substrate and the second substrate are respectively connected to a power supply to form an electromagnetic field between the first substrate and the second substrate; The connecting member is connected to the first substrate and / or the second substrate and is formed with an ion transmission port, the ion transmission port is connected to the accommodating space through the ion outlet, so that an ion transmission channel is formed between the ion inlet and the ion transmission port, and the electromagnetic field can be used to provide kinetic energy to the charged ions in the accommodating space, so that the charged ions can be transmitted through the ion transmission channel; The heating component is at least partially disposed in the accommodating space and is used to heat the medium in the accommodating space.

11. The ion processing device according to claim 10, characterized in that A ventilation channel is formed between the ventilation structure and the ion inlet, and the ion processing device further includes a wind resistance component, which is arranged in the ventilation channel between the ventilation structure and the ion inlet; Alternatively, the ventilation structure includes a first ventilation port and a second ventilation port, a ventilation channel is formed between the first ventilation port and the second ventilation port, and the ion processing device further includes a wind resistance component, which is arranged in the ventilation channel between the ventilation structure and the ventilation structure.

12. The ion processing device according to claim 11, characterized in that The wind resistance component is protrudingly provided on a side of the first base body facing the second base body; and / or, The wind resistance component is protrudingly provided on the second base body at a side facing the first base body; and / or, The wind resistance component is protruded from a portion of the heating assembly located within the accommodating space and is protruded toward one side of the first base.

13. The ion processing device according to claim 10, characterized in that The aperture of the ion inlet is larger than the aperture of the ion outlet.

Images