Inductively coupled plasma mass spectrometer sampling device

Abstract

The utility model discloses a kind of inductively coupled plasma mass spectrometer sampling devices, belong to sampling equipment technical field.The sampling device mainly includes body, cleaning component and auxiliary moving component.Among them, bottom plate and vertical plate are provided in the body;The top of the bottom plate is provided with test tube groove and cleaning component, cleaning groove is provided in the cleaning component;The outer wall of the cleaning groove is provided with water pump;Water pump is provided with connecting pipe on intercommunication;Connecting pipe is provided with spraying piece on intercommunication, and the spraying piece is set to the inner wall of cleaning groove;Vertical plate is provided with auxiliary moving component, guide rail is provided in the auxiliary moving component;The guide rail is provided with connecting plate, and connecting plate is provided with telescopic piece;Sampling needle is provided on the telescopic piece.Compared with prior art, the utility model reduces the wear and tear of water pump internal mechanical structure, and then prolongs the service life of water pump, thereby enhance the stability of detection equipment to some extent, therefore, it has higher practicality.

Description

Technical Field

[0001] This utility model relates to the field of sampling equipment technology, and in particular to a sampling device for an inductively coupled plasma mass spectrometer. Background Technology

[0002] In the determination of effective aluminum content in bauxite, inductively coupled plasma mass spectrometry (ICP-MS) is the core analytical instrument, and the stability of its sampling device directly determines the accuracy of trace and ultra-trace element detection.

[0003] A prior art (Publication No.: CN222952019U), applicant: Yunfu Zhonghui Testing Technology Co., Ltd., application date: June 14, 2024, discloses a sampling device for an inductively coupled plasma mass spectrometer, including a body and a sampling assembly; the sampling assembly includes a mounting base, a motor, a placement stage, a test tube tank, a cleaning tank, a first water pump, a connecting pipe, a spray component, a lifting component, and an injection needle; the mounting base is fixedly connected to the body and located on the side of the body; the motor is fixedly connected to the mounting base and located on the side of the mounting base; the placement stage... The platform is fixedly connected to the motor output end and located on top of the motor; the test tube tank is fixedly connected to the platform and located on the side of the platform; the cleaning tank is fixedly connected to the platform and located on the side of the platform; the first water pump is fixedly connected to the cleaning tank and located on the side of the cleaning tank; the connecting pipe is connected to the first water pump and located on the side of the first water pump; the spray component is connected to the connecting pipe and located inside the cleaning tank; the lifting component is located on the side of the machine body; the injection needle is located at the bottom of the lifting component.

[0004] While the aforementioned existing technology can clean the sampling end of the injection needle, the water pump needs to rotate with the placement platform before cleaning. The centrifugal force generated may aggravate the wear of the internal mechanical structure of the water pump (such as impeller and seals), which will generally shorten the service life of the water pump and thus affect the stability of the testing equipment. Utility Model Content

[0005] To address the shortcomings of existing technologies, the inductively coupled plasma mass spectrometry (ICP-MS) sampling device provided by this invention mainly includes a body, a test tube tank, a cleaning component, an auxiliary moving component, and a sampling needle. When cleaning the sampling tip of the sampling needle is required, the auxiliary moving component can move the sampling needle into the cleaning tank of the cleaning component. Furthermore, the sampling tip of the sampling needle can be cleaned through the combined action of the water pump, connecting pipe, and spraying component, thus avoiding the need for rotating the water pump. Compared to existing technologies, this invention reduces wear on the internal mechanical structure of the water pump, thereby extending the pump's service life and enhancing the stability of the detection equipment to a certain extent. Therefore, it has high practicality.

[0006] To achieve the above objectives, this utility model provides the following technical solution: The sampling device for inductively coupled plasma mass spectrometry includes: The body has a base plate, and a vertical plate is provided on one side of the base plate along its length. A test tube trough is located at the top of the base plate; A cleaning component, located at the top of the base plate, includes: A cleaning tank is provided at an interval from the test tube tank; A water pump is installed on the outer wall of the cleaning tank; A connecting pipe, one end of which is connected to the water pump, extends toward the interior of the cleaning tank; The spray nozzle is disposed directly or indirectly on the inner wall of the cleaning tank and is connected to the other end of the connecting pipe; The auxiliary moving components include: A guide rail is provided on one side of the vertical plate along its length. A connecting plate, one end of which is connected to the guide rail; The telescopic component is connected to the other end of the connecting plate; The sampling needle is connected to the drive end of the telescopic component.

[0007] Furthermore, the cleaning component also includes: An annular hollow shell, the outer wall of which is connected to the inner wall of the cleaning tank; The spraying component is disposed on the inner wall of the annular shell; in, The annular hollow shell is used to connect the connecting pipe to the spraying component.

[0008] Furthermore, the distance between the sampling end of the sampling needle and the telescopic component is greater than the height of the annular shell.

[0009] Furthermore, the inductively coupled plasma mass spectrometer sampling device also includes: Drying components; The drying component is disposed directly or indirectly on the top of the base plate, and the drying component is used to remove moisture adhering to the outer wall of the sampling needle.

[0010] Further, the drying assembly includes: A hair dryer, with its working end located on one side of the cleaning tank.

[0011] Furthermore, the drying assembly also includes: An air outlet pipe is located at the working end of the hair dryer.

[0012] Furthermore, the inductively coupled plasma mass spectrometer sampling device also includes: An auxiliary rotating component is arranged around the periphery of the cleaning tank; in, One side of the drying assembly is connected to the auxiliary rotating component.

[0013] Furthermore, the auxiliary rotating component includes: A ring track is provided at the top of the base plate and surrounds the periphery of the cleaning tank; A column is disposed on the annular track, and the column extends toward the height direction of the cleaning tank; The drying component is disposed directly or indirectly at the top of the column.

[0014] Furthermore, the auxiliary rotating component also includes: Connector; The bottom end of the connector is connected to the top end of the column, and the connector extends away from the column; in, The drying component is disposed at the extension end of the connector.

[0015] Furthermore, the cleaning component also includes: Protective shield; The protective cover is disposed at the top of the cleaning tank, and the top of the protective cover has a slot. The slot is connected to the interior of the cleaning tank.

[0016] The beneficial effects of this utility model are: 1. The sampling device for inductively coupled plasma mass spectrometry provided by this utility model is equipped with an auxiliary moving component. The connecting plate in the auxiliary moving component can move the sampling needle to the top of the cleaning tank under the guidance of the guide rail. Then, the telescopic component set on the connecting plate can move the sampling needle down into the interior of the cleaning tank. During this process, the water pump does not rotate, thereby reducing the wear of the internal mechanical structure of the water pump, thus extending the service life of the water pump and enhancing the stability of the detection equipment to a certain extent.

[0017] 2. The sampling device of this inductively coupled plasma mass spectrometer is equipped with a water pump, connecting pipe and spraying device. The combined action of these three components can clean the sampling end of the sampling needle. This design reduces the detection error of effective aluminum content in bauxite to a certain extent. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This utility model Figure 1 A schematic diagram of the structure without the protective cover.

[0019] Figure label: 1. Body; 11. Base plate; 12. Vertical plate; 2. Sampling needle; 3. Auxiliary moving components; 31. Guide rail; 32. Connecting plate; 33. Telescopic component; 4. Cleaning components; 41. Cleaning tank; 42. Annular shell; 43. Water pump; 44. Connecting pipe; 45. Spraying components; 46. Protective cover; 47. Tank opening; 5. Drying assembly; 51. Hair dryer; 52. Air outlet pipe; 6. Auxiliary rotating component; 61. Circular track; 62. Column; 63. Connecting body; 7. Test tube trough; 8. Drainage pipe. Detailed Implementation

[0020] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0021] As attached Figure 1 and appendix Figure 2 As shown in the figure, this embodiment discloses a sampling device for an inductively coupled plasma mass spectrometer (ICP-MS) to extend the service life of a water pump 43. It mainly includes a body 1, a test tube tank 7, a cleaning component 4, an auxiliary moving component 3, and a sampling needle 2. The body 1 is equipped with the test tube tank 7 and the cleaning component 4. An auxiliary moving component 3 is located on one side of the body 1, and the sampling needle 2 is mounted on the auxiliary moving component 3. When the sampling end of the sampling needle 2 (not marked in the figure) needs cleaning, the auxiliary moving component 3 can move the sampling needle 2 into the cleaning tank 41 of the cleaning component 4. Furthermore, under the combined action of the water pump 43, the connecting pipe 44, and the spraying component 45, the sampling end of the sampling needle 2 can be cleaned. This design avoids the need for rotating the water pump 43, thereby reducing wear on the internal mechanical structure of the water pump 43, extending its service life, and to a certain extent enhancing the stability of the detection equipment.

[0022] When the staff needs to clean the sampling end of the sampling needle 2, they first operate the control unit (not shown in the figure) to transmit the corresponding electromagnetic force to the guide rail 31. Then, the guide rail 31 can drive the connecting plate 32 to move left and right along the length of the vertical plate 12. During this process, the connecting plate 32 moves synchronously with the telescopic component 33 and the sampling needle 2. When the sampling needle 2 moves above the cleaning tank 41, the telescopic component 33 can move the sampling needle 2 down into the cleaning tank 41. Then, the water pump 43 pumps external water from the connecting pipe 44 into the spray component 45. The spray component 45 can clean the sampling end of the sampling needle 2. This design reduces the detection error of the effective aluminum content of bauxite to a certain extent. In addition, the water pump 43 is not rotated during this process, which reduces the wear of the internal mechanical structure of the water pump 43, thereby extending the service life of the water pump 43 and enhancing the stability of the detection equipment to a certain extent.

[0023] It should be noted that a drain outlet (not shown in the figure) is provided at the bottom of the inner wall of the cleaning tank 41. A drain pipe 8 is provided at the drain outlet, and the drain pipe 8 extends outward in this embodiment. This design facilitates the discharge of the cleaning generated in this embodiment to an external storage container (not shown in the figure).

[0024] The specific structure of the inductively coupled plasma mass spectrometry sampling device is as follows: It includes a body 1, a base plate 11 in the body 1, and a vertical plate 12 on one side of the base plate 11 along its length; a test tube trough 7 is provided at the top of the base plate 11; a cleaning component 4 is provided at the top of the base plate 11, and a cleaning tank 41 is provided in the cleaning component 4, which is spaced apart from the test tube trough 7; a water pump 43 is provided on the outer wall of the cleaning tank 41; a connecting pipe 44 is connected to the water pump 43. Pipe 44 extends toward the interior of the cleaning tank 41; a spraying element 45 is connected to the extended end of the connecting pipe 44, and the spraying element 45 is directly or indirectly disposed on the inner wall of the cleaning tank 41; an auxiliary moving member 3 is disposed on one side of the vertical plate 12 along its length, and a guide rail 31 is disposed in the auxiliary moving member 3; a connecting plate 32 is disposed on the guide rail 31, and the connecting plate 32 extends away from the vertical plate 12; a telescopic member 33 is disposed at the extended end of the connecting plate 32; and a sampling needle 2 is disposed at the driving end of the telescopic member 33. Compared with the prior art, this utility model reduces the wear of the internal mechanical structure of the water pump 43, thereby extending the service life of the water pump 43, and thus enhancing the stability of the testing equipment to a certain extent. Therefore, it has high practicality.

[0025] Furthermore, as shown in the appendix Figure 2As shown, the cleaning component 4 also includes an annular shell 42. Specifically, the outer wall of the annular shell 42 is connected to the inner wall of the cleaning tank 41. A plurality of spray elements 45 are arranged around the inner wall of the annular shell 42, which is used to connect the connecting pipe 44 to the spray elements 45. The annular shell 42 generally contains a chamber (not shown in the figure). The water inlet end of the spray element 45 is located within the chamber, and the spray element 45 extends away from the cleaning tank 41, while its spraying end is located outside the annular shell 42. In use, the water pump 43 guides external water to the chamber through the connecting pipe 44. Then, the water in the chamber gradually moves to the water inlet end of the spray element 45. Finally, the spraying end of the spray element 45 can clean the sampling end of the sampling needle 2.

[0026] Furthermore, the distance between the sampling end of the sampling needle 2 and the telescopic member 33 is greater than the height of the annular cavity 42. If the distance between the sampling end of the sampling needle 2 and the telescopic member 33 is too close, the following situation may occur: one side of the bottom end of the telescopic member 33 contacts the top end of the annular cavity 42. In this case, the telescopic member 33 cannot carry the sampling needle 2 further down; however, the sampling end of the sampling needle 2 does not enter the cleaning range of the spraying member 45, so the spraying member 45 cannot complete the corresponding cleaning operation. The sampling end of the sampling needle 2 is its bottom end.

[0027] In a specific application scenario, as shown in the appendix Figure 1 As shown, a drying component 5 is provided on the base plate 11. The drying component 5 can remove the moisture adhering to the outer wall of the sampling needle 2. In this process, the moisture adhering to the outer wall of the sampling end is also removed. This design shortens the interval between two samplings to a certain extent.

[0028] Furthermore, the drying assembly 5 is equipped with a blower 51, the working end of which is located on one side of the cleaning tank 41. Of course, in actual implementation, the operator can install an air outlet duct 52 at the working end of the blower 51. This design can concentrate the hot air generated by the blower 51 and blow the concentrated hot air to the sampling needle 2, thereby improving the drying efficiency of the drying assembly 5 to a certain extent.

[0029] In a specific application scenario, as shown in the appendix Figure 1 As shown, an auxiliary rotating component 6 is provided at the top of the base plate 11; wherein, the auxiliary rotating component 6 is arranged around the periphery of the cleaning tank 41, and a drying component 5 is provided on the auxiliary rotating component 6. In use, the auxiliary rotating component 6 can rotate around the cleaning tank 41 with the drying component 5; in this process, the drying component 5 can evenly dry the outer wall of the sampling end, thereby avoiding the situation where one part of the outer wall of the sampling end is over-dried while another part of the outer wall of the sampling end is not sufficiently dried.

[0030] Furthermore, the auxiliary rotating component 6 mainly includes an annular track 61 and a column 62. Specifically, the annular track 61 is located at the top of the base plate 11 and surrounds the periphery of the cleaning tank 41. The column 62 is mounted on the annular track 61 and extends towards the height of the cleaning tank 41. The aforementioned drying component 5 is directly or indirectly mounted on the top of the column 62. In use, the operator manipulates the control unit to transmit the corresponding electromagnetic force to the annular track 61. Then, the annular track 61 drives the column 62 to move in a ring around the cleaning tank 41. During this process, the drying component 5 moves synchronously with the column 62, thereby achieving the purpose of uniformly drying the outer wall of the sampling end of the drying component 5.

[0031] Furthermore, the auxiliary rotating component 6 is also provided with a connecting body 63; specifically, the bottom end of the connecting body 63 is connected to the top end of the column 62, and the connecting body 63 extends away from the column 62; the extended end of the connecting body 63 is provided with a drying component 5. This design shortens the distance between the sampling needle 2 and the drying component 5, and improves the drying efficiency of this embodiment to a certain extent.

[0032] This embodiment also considers a situation, specifically as follows: a protective cover 46 is detachably installed at the top of the cleaning tank 41, and a slot 47 is opened at the top of the protective cover 46; the slot 47 communicates with the interior of the cleaning tank 41. This design can prevent the cleaning water in the cleaning tank 41 from splashing onto the annular track 61, and to a certain extent maintains the normal operation of the auxiliary rotating component 6. Correspondingly, the operator needs to extend the distance between the telescopic component 33 and the sampling end, thereby avoiding the following situation: the bottom end of the telescopic component 33 contacts the top of the protective cover 46, and the sampling end does not enter the cleaning range of the spray component 45, that is, the spray component 45 cannot complete the corresponding cleaning operation in this embodiment. Of course, in specific implementation, the operator can make the slot 47 fit with the sampling needle 2, that is, during the process of the telescopic component 33 moving the sampling needle 2 down into the cleaning tank 41, the outer wall of the upper part of the sampling needle 2 contacts the inner wall of the slot 47. This design further avoids the cleaning water in the cleaning tank 41 splashing onto the annular track 61.

[0033] Additionally, as attached Figure 1As shown, the connecting wire of the hair dryer 51 (not shown in the figure) extends through the connector 63, column 62, annular track 61, and base plate 11 to the outside of the base plate 11. The connecting wire of the hair dryer 51 is connected to an external power source. Normally, a wire slot 47 (not shown in the figure) is provided at the bottom of the inner wall of the annular guide rail 31, and a wire cavity (not shown in the figure) is provided inside the base plate 11. The wire cavity communicates with the wire slot 47 and the lower side of the base plate 11. Furthermore, the wire cavity is spaced apart from the aforementioned drain outlet, meaning the wire cavity and the drain outlet are not connected. This design prevents cleaning water from directly contacting the connecting wire. Normally, the connecting wire... The buffer length design prevents the hair dryer 51 from excessively pulling on the connecting wire during rotation. When the column 62 rotates, the connecting wire can rotate along the guide trajectory of the annular track 61, thus ensuring the normal operation of the drying component 5. If the operator considers wear factors, an anti-wear layer can be set on the outer wall of the connecting wire, thereby preventing the outer wall of the connecting wire from directly contacting the inner wall of the connector 63, the inner wall of the column 62, the inner wall of the annular track 61, or the inner wall of the base plate 11, thus extending the service life of the connecting wire to a certain extent.

[0034] In practice, the staff can appropriately extend the length of the upright plate 12 and the guide rail 31. This design allows the sampling needle 2 to operate on more test tube slots 7 on the base plate 11. Furthermore, the center point of the test tube slot 7 and the center point of the cleaning tank 41 are roughly on the same horizontal line, which facilitates the corresponding sampling and cleaning operations. To improve the stability of the sampling needle 2 in this embodiment, the staff can set up two sets of connecting plates 32 and two sets of telescopic members 33. One side of each of the two sets of telescopic members 33 is connected to the outer wall of the sampling needle 2. In use, the staff can operate the control unit to drive the two sets of connecting plates 32 to move left and right simultaneously along the length of the upright plate 12, thereby causing the telescopic members 33 and the sampling needle 2 to move synchronously.

[0035] If staff want to clean the inner wall of sampling needle 2, they can refer to the existing patent with publication number CN222952019U for the relevant content, which will not be elaborated here.

[0036] Normally, the aforementioned control unit is electrically connected to components such as guide rail 31, telescopic component 33, water pump 43, spray component 45, blower 51, and circular track 61. This design makes it easy for staff to adjust the working status of the corresponding components in this embodiment at any time.

[0037] Those skilled in the art will understand that, unless specifically stated otherwise, the singular forms “a,” “an,” and “the” used in this invention may also include the plural forms. It should be further understood that the term “comprising” as used in this invention means the presence of the stated features, integers, steps, operations, elements, and / or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof. It should be understood that when we say an element is “connected” or “coupled” to another element, it can be directly connected or coupled to the other element, or there may be intermediate elements. Furthermore, “connected” or “coupled” as used herein can include wireless connections or wireless coupling. The term “and / or” as used herein includes all or any units and all combinations of one or more associated listed items.

Claims

1. A sampling device for an inductively coupled plasma mass spectrometer, characterized in that, include: The body (1) has a base plate (11) and a vertical plate (12) on one side of the base plate (11) along its length. The test tube trough (7) is located at the top of the base plate (11); The cleaning component (4), located at the top of the base plate (11), includes: The cleaning tank (41) is spaced apart from the test tube tank (7); A water pump (43) is installed on the outer wall of the cleaning tank (41); A connecting pipe (44) is connected at one end to the water pump (43), and the connecting pipe (44) extends toward the interior of the cleaning tank (41); The spraying component (45) is disposed directly or indirectly on the inner wall of the cleaning tank (41) and is connected to the other end of the connecting pipe (44); The auxiliary moving component (3) includes: A guide rail (31) is provided on one side of the vertical plate (12) along its length. A connecting plate (32), one end of which is connected to the guide rail (31); The telescopic component (33) is connected to the other end of the connecting plate (32); The sampling needle (2) is connected to the drive end of the telescopic member (33).

2. The sampling device for inductively coupled plasma mass spectrometry according to claim 1, characterized in that, The cleaning component (4) further includes: An annular hollow shell (42) has its outer wall connected to the inner wall of the cleaning tank (41); The spraying component (45) is disposed on the inner wall of the annular shell (42); in, The annular shell (42) is used to connect the connecting pipe (44) to the spraying component (45).

3. The sampling device for inductively coupled plasma mass spectrometry according to claim 2, characterized in that, The distance between the sampling end of the sampling needle (2) and the telescopic member (33) is greater than the height of the annular shell (42).

4. The sampling device for inductively coupled plasma mass spectrometry according to claim 1, characterized in that, Also includes: Drying component (5); The drying component (5) is disposed directly or indirectly on the top of the base plate (11), and the drying component (5) is used to remove moisture adhering to the outer wall of the sampling needle (2).

5. The sampling device for an inductively coupled plasma mass spectrometer according to claim 4, characterized in that, The drying assembly (5) includes: A hair dryer (51) has its working end located on one side of the cleaning tank (41).

6. The sampling device for an inductively coupled plasma mass spectrometer according to claim 5, characterized in that, The drying assembly (5) further includes: An air outlet pipe (52) is located at the working end of the blower (51).

7. The sampling device for an inductively coupled plasma mass spectrometer according to any one of claims 4-6, characterized in that, Also includes: An auxiliary rotating component (6) is arranged around the periphery of the cleaning tank (41); in, One side of the drying component (5) is connected to the auxiliary rotating component (6).

8. The sampling device for an inductively coupled plasma mass spectrometer according to claim 7, characterized in that, The auxiliary rotating component (6) includes: A ring track (61) is provided at the top of the base plate (11), and the ring track (61) is arranged around the periphery of the cleaning tank (41); A column (62) is disposed on the annular track (61) and the column (62) extends toward the height direction of the cleaning tank (41); The drying component (5) is disposed directly or indirectly at the top of the column (62).

9. The sampling device for an inductively coupled plasma mass spectrometer according to claim 8, characterized in that, The auxiliary rotating component (6) also includes: Connector (63); The bottom end of the connector (63) is connected to the top end of the column (62), and the connector (63) extends away from the column (62); in, The drying component (5) is disposed at the extension end of the connector (63).

10. The sampling device for an inductively coupled plasma mass spectrometer according to claim 1, characterized in that, The cleaning component (4) further includes: Protective shield (46); The protective cover (46) is disposed at the top of the cleaning tank (41), and the top of the protective cover (46) is provided with a slot (47). The slot (47) is connected to the interior of the cleaning tank (41).

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