Atomic fluorescence spectrophotometer

Abstract

The utility model discloses an atomic fluorescence spectrophotometer, and particularly relates to the technical field of atomic fluorescence spectrophotometers, which comprises an atomic fluorescence spectrophotometer, an atomizer is arranged in the atomic fluorescence spectrophotometer, a sampling cavity is arranged on the surface of the front side of the atomizer, and an adjusting mechanism is arranged in the sampling cavity. A protection mechanism is arranged on the front side of the atomizer; the adjusting mechanism comprises an upper moving plate and a lower moving plate, and the upper moving plate and the lower moving plate are both arranged in the sampling cavity. By arranging the protection mechanism and the flushing mechanism, corrosive chemical liquid can be effectively prevented from being splashed out through the arrangement of the protection door, the safety of operators is protected, after measurement is completed, water is pumped into the connecting water pipe and the telescopic hose through the water pump, a solution remaining in the microsyringe is flushed, and the safety of the microsyringe is improved. The influence of the last solution residue on the next detection precision is effectively prevented, and the accuracy of each detection is ensured.

Description

Technical Field

[0001] This utility model relates to the field of atomic fluorescence spectrophotometer technology, and more specifically, to an atomic fluorescence spectrophotometer. Background Technology

[0002] An atomic fluorescence spectrophotometer is an important instrument for analyzing trace and ultra-trace elements. It is mainly used for the qualitative and quantitative analysis of trace elements in substances. It uses potassium borohydride or sodium borohydride as a reducing agent to reduce the element to be analyzed in the sample solution to a volatile covalent gaseous hydride. By detecting the fluorescence intensity, the content of the element to be analyzed in the sample is determined based on its linear relationship with the content of the element to be analyzed in the sample.

[0003] A search revealed that Chinese patent CN208953451U discloses an atomic fluorescence spectrophotometer. Addressing the problems of current atomic fluorescence spectrophotometers on the market, such as difficulty in flexibly adjusting for movement and fixation, reliance on manual handling being time-consuming and laborious, and the ease with which the spectrophotometer is damaged by impacts, the patent utilizes casters that can be adjusted by flipping a movable plate to support the ground or fold for storage. This achieves flexible adjustment for movement and fixation during use, preventing damage during transport and making the device more convenient to use.

[0004] Atomic fluorescence analysis often involves corrosive chemical liquids. Traditional instruments lack effective protective measures, and spilled chemical liquids can cause injury to operators. Furthermore, when analyzing different samples consecutively, if residual solution inside the microsyringe is not effectively rinsed, the residue from the previous analysis can severely affect the accuracy of subsequent analyses, leading to inaccurate results. Utility Model Content

[0005] In order to overcome the problems and defects in the prior art, this utility model provides an atomic fluorescence spectrophotometer to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an atomic fluorescence spectrophotometer, comprising an atomic fluorescence spectrophotometer, wherein an atomizer is installed inside the atomic fluorescence spectrophotometer, a sampling cavity is provided on the front surface of the atomizer, an adjustment mechanism is provided inside the sampling cavity, and a protective mechanism is provided on the front side of the atomizer;

[0007] The adjustment mechanism includes an upper moving plate and a lower moving plate, both of which are disposed inside the sampling chamber. A fixed plate is fixedly connected to one side of the inner wall of the sampling chamber. A motor is fixedly installed on the top of the fixed plate. A threaded rod is fixedly connected to the output end of the motor. A threaded sleeve is threadedly connected to the outer side of the threaded rod. A connecting rod is fixedly connected between the upper moving plate and the lower moving plate and the threaded sleeve. A micro-injector is fixedly installed at the bottom of the upper moving plate. A rinsing mechanism is provided between the micro-injector and the atomizer.

[0008] Preferably, the rinsing mechanism includes a water tank, which is fixedly installed on the rear side of the atomizer. A water pump is fixedly installed inside the water tank, and a connecting water pipe is fixedly connected to the bottom of the water pump.

[0009] Preferably, a telescopic hose is fixedly connected to the bottom end of the connecting water pipe, the bottom end of the telescopic hose is fixedly connected to the micro-syringe, and an electromagnetic valve is fixedly installed inside the connecting water pipe.

[0010] Preferably, the protective mechanism includes a protective door, which is located on the front side of the atomizer. A hinge is fixedly installed between the protective door and the atomizer, and a slot is provided on the front surface of the atomizer.

[0011] Preferably, an elastic block is fixedly connected to one side of the protective door, and the elastic block is movably engaged with the slot. A glass observation window is fixedly installed inside the protective door.

[0012] Preferably, the threaded rod is rotatably connected to the fixed plate, and two sets of threads are symmetrically arranged on the outer surface of the threaded rod.

[0013] Preferably, a limiting slider is fixedly connected to one side of the threaded sleeve, and a limiting groove is formed on one side surface of the inner wall of the sampling chamber, with the limiting slider and the limiting groove being slidably connected.

[0014] The technical effects and advantages of this utility model are as follows:

[0015] 1. By setting up protective and flushing mechanisms, the protective door can effectively prevent corrosive chemical liquids from splashing out, protecting the safety of operators. At the same time, it can also prevent chemical liquids from damaging the instruments and equipment, extending the service life of the instruments. After the measurement is completed, water is pumped into the connecting water pipe and telescopic hose to flush the solution remaining inside the micro-syringe. This flushing method can effectively prevent the residual solution from the previous test from affecting the accuracy of the next test, ensuring the accuracy of each test.

[0016] 2. By setting an adjustment mechanism, the threaded rod driven by the motor moves the threaded sleeve, thereby precisely adjusting the distance between the upper and lower moving plates. This allows the micro-syringe to accurately approach the sample vial for sampling. This method ensures stable sampling position each time, improves sampling accuracy and repeatability, reduces human error, and increases sampling efficiency. It is suitable for continuous analysis of a large number of samples. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0018] Figure 2 This is a side view of the structure of this utility model.

[0019] Figure 3 This is a partial cross-sectional view of the front of this utility model.

[0020] Figure 4 This is a partial cross-sectional view of the atomizer of this utility model.

[0021] Figure 5 This is a front cross-sectional view of the atomizer of this utility model.

[0022] The attached figures are labeled as follows: 1. Atomic fluorescence spectrophotometer; 2. Atomizer; 3. Sampling chamber; 4. Upper moving plate; 5. Lower moving plate; 6. Fixed plate; 7. Motor; 8. Threaded rod; 9. Threaded sleeve; 10. Connecting rod; 11. Micro-injector; 12. Water tank; 13. Water pump; 14. Connecting water pipe; 15. Telescopic flexible hose; 16. Protective door; 17. Hinge; 18. Glass observation window; 19. Elastic locking block; 20. Locking groove; 21. Limiting slide groove; 22. Limiting slider; 23. Electromagnetic valve. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] As attached Figure 1-5 An atomic fluorescence spectrophotometer is shown, including an atomic fluorescence spectrophotometer 1, an atomizer 2 installed inside the atomic fluorescence spectrophotometer 1, a sampling chamber 3 opened on the front surface of the atomizer 2, an adjustment mechanism inside the sampling chamber 3, and a protective mechanism on the front side of the atomizer 2.

[0025] The adjustment mechanism includes an upper moving plate 4 and a lower moving plate 5, both of which are located inside the sampling chamber 3. A fixed plate 6 is fixedly connected to one side of the inner wall of the sampling chamber 3. A motor 7 is fixedly installed on the top of the fixed plate 6. A threaded rod 8 is fixedly connected to the output end of the motor 7. A threaded sleeve 9 is threadedly connected to the outside of the threaded rod 8. A connecting rod 10 is fixedly connected between the upper moving plate 4 and the lower moving plate 5 and the threaded sleeve 9. A micro-injector 11 is fixedly installed at the bottom of the upper moving plate 4. A rinsing mechanism is provided between the micro-injector 11 and the atomizer 2.

[0026] As attached Figure 4 As shown, the rinsing mechanism includes a water tank 12, which is fixedly installed on the rear side of the atomizer 2. A water pump 13 is fixedly installed inside the water tank 12. A connecting water pipe 14 is fixedly connected to the bottom of the water pump 13. A telescopic hose 15 is fixedly connected to the bottom end of the connecting water pipe 14. The bottom end of the telescopic hose 15 is fixedly connected to the micro-injector 11. An electromagnetic valve 23 is fixedly installed inside the connecting water pipe 14 to facilitate rinsing of the micro-injector 11 and avoid solution residue affecting the accuracy of the next detection.

[0027] As attached Figure 1 , 2 As shown in Figure 4, the protective mechanism includes a protective door 16, which is located on the front side of the atomizer 2. A hinge 17 is fixedly installed between the protective door 16 and the atomizer 2. A slot 20 is provided on the front surface of the atomizer 2. An elastic block 19 is fixedly connected to one side of the protective door 16. The elastic block 19 is movably engaged with the slot 20. A glass observation window 18 is fixedly installed inside the protective door 16. The protective door 16 provides protection against splashing of corrosive solutions and facilitates observation of the sampling situation inside the atomizer 2.

[0028] As attached Figure 3 , 5 As shown, the threaded rod 8 is rotatably connected to the fixed plate 6. Two sets of threads are symmetrically arranged on the outer surface of the threaded rod 8. A limiting slider 22 is fixedly connected to one side of the threaded sleeve 9. A limiting groove 21 is opened on one side of the inner wall of the sampling chamber 3. The limiting slider 22 and the limiting groove 21 are slidably connected, so that the upper moving plate 4 and the lower moving plate 5 can move vertically in opposite directions.

[0029] The working principle of this utility model is as follows: The sample bottle is placed on the lower moving plate 5. The front surface of the atomizer 2 inside the atomic fluorescence spectrophotometer 1 is provided with a sampling cavity 3, which provides operating space for the entire sampling process. The motor 7 is started. The motor 7 is fixedly installed on the top of the fixed plate 6. The output end of the motor 7 is fixedly connected to a threaded rod 8. The threaded rod 8 is rotatably connected to the fixed plate 6, and two sets of threads are symmetrically arranged on its outer surface. The motor 7 drives the threaded rod 8 to rotate. As the threaded sleeve 9 moves, the distance between the upper moving plate 4 and the lower moving plate 5 is adjusted so that the micro-injector 11 fixedly installed at the bottom of the upper moving plate 4 can get close to the sample bottle for sampling.

[0030] The sample is drawn from the sample vial by the micro-syringe 11 and enters the atomizer 2 for atomization. Then, it is detected and analyzed by the detection system of the atomic fluorescence spectrophotometer 1. During the sampling and detection process, the protective door 16 is closed for protection. The protective door 16 is located on the front side of the atomizer 2 and is connected to the atomizer 2 by the hinge 17. An elastic block 19 is fixedly connected to one side of the protective door 16. A slot 20 is opened on the front surface of the atomizer 2. The elastic block 19 is movably engaged with the slot 20 to ensure that the protective door 16 is firmly closed. A glass observation window 18 is fixedly installed inside the protective door 16 to facilitate observation of the internal condition of the sampling chamber 3 and prevent some corrosive chemical liquids from splashing out, thus protecting the operators and the equipment.

[0031] After the measurement is completed, the water pump 13 starts and draws water out through the connecting water pipe 14. A telescopic hose 15 is fixedly connected to the bottom end of the connecting water pipe 14. The bottom end of the telescopic hose 15 is fixedly connected to the micro-syringe 11. A solenoid valve 23 is fixedly installed inside the connecting water pipe 14. Water enters the micro-syringe 11 through the connecting water pipe 14 and the telescopic hose 15 to rinse the solution remaining inside the micro-syringe 11 and prevent the residue of the previous solution from affecting the detection accuracy.

[0032] In conclusion, the above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. An atomic fluorescence spectrophotometer, comprising an atomic fluorescence spectrophotometer (1), characterized in that: The atomic fluorescence spectrophotometer (1) is equipped with an atomizer (2), and a sampling cavity (3) is provided on the front surface of the atomizer (2). An adjustment mechanism is provided inside the sampling cavity (3), and a protective mechanism is provided on the front side of the atomizer (2). The adjustment mechanism includes an upper moving plate (4) and a lower moving plate (5). Both the upper moving plate (4) and the lower moving plate (5) are located inside the sampling chamber (3). A fixed plate (6) is fixedly connected to one side of the inner wall of the sampling chamber (3). A motor (7) is fixedly installed on the top of the fixed plate (6). A threaded rod (8) is fixedly connected to the output end of the motor (7). A threaded sleeve (9) is threadedly connected to the outside of the threaded rod (8). A connecting rod (10) is fixedly connected between the upper moving plate (4) and the lower moving plate (5) and the threaded sleeve (9). A micro-injector (11) is fixedly installed at the bottom of the upper moving plate (4). A rinsing mechanism is provided between the micro-injector (11) and the atomizer (2).

2. The atomic fluorescence spectrophotometer according to claim 1, characterized in that: The flushing mechanism includes a water tank (12), which is fixedly installed on the rear side of the atomizer (2). A water pump (13) is fixedly installed inside the water tank (12), and a connecting water pipe (14) is fixedly connected to the bottom of the water pump (13).

3. The atomic fluorescence spectrophotometer according to claim 2, characterized in that: The bottom end of the connecting water pipe (14) is fixedly connected to a telescopic hose (15), the bottom end of the telescopic hose (15) is fixedly connected to the micro-injector (11), and an electromagnetic valve (23) is fixedly installed inside the connecting water pipe (14).

4. The atomic fluorescence spectrophotometer according to claim 1, characterized in that: The protective mechanism includes a protective door (16), which is located on the front side of the atomizer (2). A hinge (17) is fixedly installed between the protective door (16) and the atomizer (2). A slot (20) is provided on the front surface of the atomizer (2).

5. The atomic fluorescence spectrophotometer according to claim 4, characterized in that: An elastic block (19) is fixedly connected to one side of the protective door (16), and the elastic block (19) is movably engaged with the slot (20). A glass observation window (18) is fixedly installed inside the protective door (16).

6. The atomic fluorescence spectrophotometer according to claim 1, characterized in that: The threaded rod (8) is rotatably connected to the fixed plate (6), and two sets of threads are symmetrically arranged on the outer surface of the threaded rod (8).

7. The atomic fluorescence spectrophotometer according to claim 1, characterized in that: A limiting slider (22) is fixedly connected to one side of the threaded sleeve (9), and a limiting groove (21) is opened on one side of the inner wall of the sampling cavity (3). The limiting slider (22) and the limiting groove (21) are slidably connected.

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