Novel atomic fluorescence current-carrying system

Abstract

The utility model discloses a novel atomic fluorescence current carrying system which is characterized in that a first liquid storage bottle is used for storing a potassium borohydride solution, the first liquid storage bottle is provided with a first liquid inlet, a first connector and a first gas outlet, the first liquid inlet is provided with a first liquid inlet pipe, the first liquid inlet pipe is provided with a first pump body, and the first pump body is provided with a second liquid inlet pipe; the first gas exhaust port is connected with an exhaust system through a first exhaust pipe; the second liquid storage bottle is provided with a second liquid inlet, a second connecting port and a second gas exhaust port, the second liquid inlet is provided with a second liquid inlet pipe, the second liquid inlet pipe is provided with a second pump body, and the second gas exhaust port is connected with the exhaust system through a second exhaust pipe. According to the novel atomic fluorescence current-carrying system provided by the utility model, hydrogen released by decomposition of a potassium borohydride solution and gas volatilized by a hydrochloric acid solution can be conveyed outdoors, so that the gas volatilized by the hydrogen and the hydrochloric acid is prevented from staying indoors and corroding indoor equipment, instruments and office equipment.

Description

Technical Field

[0001] The utility model relates to the technical field of atomic fluorescence analysis, in particular to a novel atomic fluorescence current-carrying system. Background Art

[0002] Atomic fluorescence analysis has been widely used in the determination of trace amounts of As, Sb, Bi, Hg, Se and other elements. The basic principle is that the ions of the element to be measured react with a strong reducing agent (usually potassium borohydride or sodium borohydride) in an acidic medium (usually hydrochloric acid) to be reduced to gaseous hydrides or atoms, while producing a large amount of hydrogen. The hydride molecules dissociate into ground state atoms in a high-temperature hydrogen flame and are excited to a high-energy state by the radiation of a specific frequency of the excitation light source. Since the high energy level is extremely unstable, the excited state atoms emit fluorescence of a characteristic wavelength in the form of light radiation during the de-excitation process. The fluorescence intensity is related to the concentration of the element to be measured, and the concentration of the element to be measured is obtained by measuring its fluorescence signal through a detector (usually a photomultiplier tube).

[0003] The atomic fluorescence analysis device (also called atomic fluorescence instrument, atomic fluorescence photometer) designed according to the above principle mainly includes an infusion system, a steam generation system (or reactor), an atomizer, an excitation light source, a detector and a control system. The infusion system is used to transmit the test solution and the reducing agent, a chemical reaction occurs in the steam generation system to generate gaseous hydride molecules and hydrogen (becomes steam), the atomizer is used to make the hydride molecules into atoms, the excitation light source and the detector are used to generate fluorescence and collect fluorescence signals, and the detection results are reported through the operation of the control system.

[0004] The atomic fluorescence method requires a large amount of potassium borohydride solution during the detection process. Potassium borohydride solution will decompose and release hydrogen at room temperature. Hydrogen has a strong oxidizing effect and will cause serious corrosion to instruments, office equipment, etc. in the environment. Utility Model Content

[0005] The purpose of the utility model is to provide a novel atomic fluorescence current-carrying system to solve the above-mentioned deficiencies in the prior art.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A novel atomic fluorescence current carrier system, comprising:

[0008] a first liquid storage bottle, which is used to store potassium borohydride solution; the first liquid storage bottle is provided with a first liquid inlet, a first connecting port and a first gas outlet; the first liquid inlet is provided with a first liquid inlet pipe, the first liquid inlet pipe is provided with a first pump body, and the first gas outlet is connected to an exhaust system through a first exhaust pipe;

[0009] The second liquid storage bottle is used to store hydrochloric acid solution. The second liquid storage bottle is provided with a second liquid inlet, a second connecting port and a second gas outlet. The second liquid inlet is provided with a second liquid inlet pipe, the second liquid inlet pipe is provided with a second pump body, and the second gas outlet is connected to the exhaust system through a second exhaust pipe.

[0010] In the above-mentioned novel atomic fluorescence carrier system, a connecting tee is arranged on the second liquid inlet pipe, a carrier solution inlet pipe and a sample solution inlet pipe are arranged on the connecting tee, and the second pump body is arranged on the carrier solution inlet pipe.

[0011] The novel atomic fluorescence current carrier system further comprises a hydrochloric acid absorber, which is arranged on the second exhaust pipe and is used for absorbing the gas volatilized by the hydrochloric acid.

[0012] The novel atomic fluorescence current carrier system further comprises a hydrogen absorber, which is arranged on the first exhaust pipe and is used for absorbing hydrogen.

[0013] In the novel atomic fluorescence current carrier system, an absorption chamber is arranged inside the hydrogen absorber, and an air inlet and an air outlet are arranged on the hydrogen absorber, and both the air inlet and the air outlet are connected to the absorption chamber.

[0014] In the above-mentioned novel atomic fluorescence current carrier system, an absorption box is arranged in the absorption chamber, and a placement cavity capable of placing a solid hydrogen absorbent is arranged inside the absorption box. Air holes are arranged on opposite sides of the absorption box, and the air holes are communicated with the placement cavity.

[0015] In the above-mentioned novel atomic fluorescence current-carrying system, the hydrogen absorber is also provided with an opening for the absorption box to be placed in or taken out, and the opening is provided with a sealing plate that can be opened or closed.

[0016] The novel atomic fluorescence current carrier system further comprises a hydrogen concentration detector. The absorption box divides the absorption chamber into an air inlet cavity and an air outlet cavity. The hydrogen concentration detector is arranged in the air outlet cavity.

[0017] In the above technical scheme, the novel atomic fluorescence current carrier system provided by the embodiment of the utility model includes a first liquid storage bottle and a second liquid storage bottle, the first liquid storage bottle is used to store potassium borohydride solution, the first liquid storage bottle is provided with a first liquid inlet, a first connecting port and a first gas outlet, the first gas outlet is connected to the exhaust system through a first exhaust pipe, the second liquid storage bottle is used to store hydrochloric acid solution, the second liquid storage bottle is provided with a second liquid inlet, a second connecting port and a second gas outlet, the second gas outlet is connected to the exhaust system through a second exhaust pipe, so that the hydrogen released by the decomposition of the potassium borohydride solution can be directly transported to the outdoors, and the volatilized gas of the hydrochloric acid solution can also be transported to the outdoors, so as to avoid the hydrogen and the volatilized gas of the hydrochloric acid being retained indoors and causing corrosion to the indoor equipment, instruments and office equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0019] Figure 1 A schematic diagram of the structure of a novel atomic fluorescence current carrier system provided by an embodiment of the utility model;

[0020] Figure 2 A schematic diagram of the internal structure of a hydrogen absorber provided in an embodiment of the utility model.

[0021] Description of reference numerals:

[0022] 1. First liquid storage bottle; 11. First liquid inlet; 12. First connecting port; 13. First gas outlet; 14. First liquid inlet pipe; 15. First pump body; 2. Second liquid storage bottle; 21. Second liquid inlet; 22. Second connecting port; 23. Second gas outlet; 24. Second liquid inlet pipe; 25. Second pump body; 26. Connecting tee; 27. Carrier solution inlet pipe; 28. Sample solution inlet pipe; 3. Exhaust system; 4. Hydrochloric acid absorber; 5. Hydrogen absorber; 51. Absorption chamber; 52. Air inlet; 53. Air outlet; 54. Air inlet cavity; 55. Air outlet cavity; 56. Absorption box; 560. Placement cavity; 561. Vertical partition; 562. Left chamber; 563. Right chamber; 564. Lower chamber; 565. Air vent; 57. Sealing plate; 58. Hydrogen concentration detection member. DETAILED DESCRIPTION

[0023] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0024] like Figure 1-2 As shown, the embodiment of the utility model provides a novel atomic fluorescence current carrier system, including a first liquid storage bottle 1 and a second liquid storage bottle 2, the first liquid storage bottle 1 is used to store potassium borohydride solution, the first liquid storage bottle 1 is provided with a first liquid inlet 11, a first connecting port 12 and a first gas exhaust port 13, the first liquid inlet 11 is provided with a first liquid inlet pipe 14, the first liquid inlet pipe 14 is provided with a first pump body 15, the first gas exhaust port 13 is connected to the exhaust system 3 through a first exhaust pipe, the second liquid storage bottle 2 is used to store hydrochloric acid solution, the second liquid storage bottle 2 is provided with a second liquid inlet 21, a second connecting port 22 and a second gas exhaust port 23, the second liquid inlet 21 is provided with a second liquid inlet pipe 24, the second liquid inlet pipe 24 is provided with a second pump body 25, and the second gas exhaust port 23 is connected to the exhaust system 3 through a second exhaust pipe.

[0025] Specifically, in addition to the first liquid storage bottle 1 and the second liquid storage bottle 2, the atomic fluorescence current carrier system may also have other supporting devices. This is the prior art and will not be elaborated. The improvement of this embodiment over the prior art is that the first gas outlet 13 on the first liquid storage bottle 1 and the second gas outlet 23 on the second liquid storage bottle 2 are both connected to the exhaust system 3, so that the hydrogen released by the decomposition of the potassium borohydride solution can be directly transported to the outdoors, and the volatilized gas of the hydrochloric acid solution can also be transported to the outdoors, avoiding the hydrogen and the volatilized gas of the hydrochloric acid from being retained indoors and causing corrosion to the indoor equipment, instruments and office equipment.

[0026] The first liquid storage bottle 1 is used to store potassium borohydride solution. A first liquid inlet 11, a first connecting port 12 and a first gas outlet 13 are arranged on the top of the first liquid storage bottle 1. The first liquid inlet 11 is used to transport the potassium borohydride solution to the first liquid storage bottle 1. A first liquid inlet pipe 14 is arranged on the first liquid inlet 11. A first pump body 15 is arranged on the first liquid inlet pipe 14. The first liquid inlet pipe 14 is connected to a conveying device or a storage device of the potassium borohydride solution. The delivery of the potassium borohydride solution is controlled by the pump body, so that an appropriate amount of potassium borohydride solution is maintained in the first liquid storage bottle 1. The first connecting port 12 is used to connect with other devices in the atomic fluorescence analysis system. The first connecting port 12 can be closed when not in use. The first gas outlet 13 is connected to the exhaust system 3, so that the hydrogen released by the decomposition of the potassium borohydride solution is transported to the exhaust system 3 and then transported to the outdoors through the exhaust system 3.

[0027] The second liquid storage bottle 2 is used to store hydrochloric acid solution. A second liquid inlet 21, a second connecting port 22 and a second gas exhaust port 23 are arranged on the top of the second liquid storage bottle 2. The second liquid inlet 21 is used to transport the hydrochloric acid solution to the second liquid storage bottle 2. A second liquid inlet pipe 24 is arranged on the second liquid inlet 21. A second pump body 25 is arranged on the second liquid inlet pipe 24. A connecting tee 26 is arranged on the second liquid inlet pipe 24. A control valve is arranged on the connecting tee 26. The control valve can be used to open or close any interface of the connecting tee 26. A carrier solution inlet pipe 27 and a sample solution inlet pipe 28 are arranged on the connecting tee 26. The second pump body 25 is arranged on the carrier solution inlet pipe 27. The carrier solution inlet pipe 27 and the sample solution inlet pipe 28 are connected to the second pump body 25. The hydrochloric acid solution is connected to a delivery device or a storage device, and the delivery of the hydrochloric acid solution is controlled by a pump body and a carrier solution inlet pipe 27. The sample solution inlet pipe 28 is connected to the sample solution storage device. A delivery pump body can also be provided on the sample solution inlet pipe 28. The first pump body 15, the second pump body 25 and the delivery pump body can be peristaltic pumps. The sample solution can be delivered to the second liquid storage bottle 2 through the delivery pump body. The second connecting port 22 is used to connect with other devices in the atomic fluorescence analysis system. The second connecting port 22 can be closed when not in use. The second gas exhaust port 23 is connected to the exhaust system 3, so that the volatilized gas of the hydrochloric acid solution is delivered to the exhaust system 3 and then delivered to the outdoors through the exhaust system 3.

[0028] The embodiment of the utility model provides a novel atomic fluorescence current carrier system, comprising a first liquid storage bottle 1 and a second liquid storage bottle 2, the first liquid storage bottle 1 is used to store potassium borohydride solution, the first liquid storage bottle 1 is provided with a first liquid inlet 11, a first connecting port 12 and a first gas outlet 13, the first gas outlet 13 is connected to an exhaust system 3 through a first exhaust pipe, the second liquid storage bottle 2 is used to store hydrochloric acid solution, the second liquid storage bottle 2 is provided with a second liquid inlet 21, a second connecting port 22 and a second gas outlet 23, the second gas outlet 23 is connected to the exhaust system 3 through a second exhaust pipe, so that the hydrogen released by the decomposition of the potassium borohydride solution can be directly transported to the outdoors, and the volatilized gas of the hydrochloric acid solution can also be transported to the outdoors, so as to avoid the hydrogen and the volatilized gas of the hydrochloric acid being retained indoors and causing corrosion to indoor equipment, instruments and office equipment.

[0029] In the present embodiment, preferably, a hydrochloric acid absorber 4 is further included, which is arranged on the second exhaust pipe and is used to absorb and treat the volatilized gas of hydrochloric acid. The hydrochloric acid absorber 4 adopts the structure of absorbing the volatilized gas of hydrochloric acid in the prior art, and its structure and principle are not repeated. In this way, the volatilized gas of hydrochloric acid in the second liquid storage bottle 2 is first absorbed by the hydrochloric acid absorber 4, and then transported to the exhaust system 3, so that most of the hydrochloric acid gas is absorbed, and only a small amount of hydrochloric acid gas is discharged to the outside.

[0030] In this embodiment, preferably, a hydrogen absorber 5 is further included, which is arranged on the first exhaust pipe and is used to absorb and treat the hydrogen. The hydrogen absorber 5 can absorb hydrogen, so that the hydrogen released by the decomposition of the potassium borohydride solution is first transported to the hydrogen absorber 5 and absorbed by the hydrogen absorber 5. After most of the hydrogen is absorbed, a small amount of hydrogen is transported to the exhaust system 3 to be discharged to the outdoors. In this way, high-concentration hydrogen can be avoided from being directly transported to the exhaust system 3, causing corrosion to the equipment in the exhaust system 3.

[0031] In this embodiment, preferably, an absorption chamber 51 is provided inside the hydrogen absorber 5, and an air inlet 52 and an air outlet 53 are provided on the hydrogen absorber 5, and the air inlet 52 and the air outlet 53 are both connected with the absorption chamber 51, and an absorption box 56 is provided in the absorption chamber 51, and the absorption box 56 is blocked in the absorption chamber 51, so that the absorption chamber 51 is divided into two left and right chambers by the absorption box 56, and hydrogen transported to the absorption chamber 51 must pass through the absorption box 56 for absorption, and the absorption box 56 is provided with a placement cavity 560 for placing a solid hydrogen absorbent, and air holes 565 are provided on opposite sides of the absorption box 56, and the air holes 565 are connected with the placement cavity 560, and the solid hydrogen absorbent can be activated alumina or other absorbents.

[0032] In this embodiment, preferably, it also includes a hydrogen concentration detection element 58, the absorption box 56 divides the absorption chamber 51 into an air inlet cavity 54 and an air outlet cavity 55, the hydrogen concentration detection element 58 is arranged in the air outlet cavity 55, and the concentration of hydrogen in the air outlet cavity 55 can be detected by the hydrogen concentration detection element 58, and the hydrogen absorber 5 is also provided with an opening for the absorption box 56 to be placed in or taken out, and the opening is provided with a sealing plate 57 that can be opened or closed, so that when in use, hydrogen enters the air inlet cavity 54 through the air inlet 52, and the hydrogen is transported from the air vent 565 to the placement cavity 560 for absorption by the solid hydrogen absorbent, and after absorption, it is transported from the air vent 565 to the air outlet cavity 55. When the hydrogen concentration detection element 58 detects that the concentration of hydrogen is greater than the preset value, it indicates that the absorption box 56 needs to be replaced. At this time, the sealing plate 57 is opened to replace the absorption box 56. After the replacement is completed, the sealing plate 57 is closed.

[0033] In this embodiment, preferably, a vertical partition 561 is provided in the placement chamber 560, the length of the vertical partition 561 is equal to half the height of the placement chamber 560, the top of the vertical partition 561 is connected to the top of the placement chamber 560, and a gap is formed between the bottom of the vertical partition 561 and the bottom wall of the placement chamber 560, so that the upper half of the placement chamber 560 is separated by the vertical partition 561 to form a left chamber 562 and a right chamber 563, and the lower half of the placement chamber 560 is formed into a lower chamber 564, and the lower chamber 564 is connected to the left chamber 562 and the right chamber 563. The two chambers 562 and 563 are connected to each other, and the air holes 565 are arranged on the upper part of the side walls on both sides of the box body, that is, the air holes 565 are arranged at the corresponding position of the box body and the left chamber 562 and the corresponding position of the box body and the right chamber 563. The connecting parts of the left chamber 562, the right chamber 563 and the lower chamber 564 are all filled with solid hydrogen absorbent, so that the hydrogen first enters the left chamber 562 from the air hole 565, and then enters the lower chamber 564, is absorbed by the solid hydrogen absorbent in the lower chamber 564 and transported to the right chamber 563, and then transported to the air outlet cavity 55 from the air hole 565.

[0034] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A novel atomic fluorescence current carrier system, characterized in that: include: a first liquid storage bottle, which is used to store potassium borohydride solution; the first liquid storage bottle is provided with a first liquid inlet, a first connecting port and a first gas outlet; the first liquid inlet is provided with a first liquid inlet pipe, the first liquid inlet pipe is provided with a first pump body, and the first gas outlet is connected to an exhaust system through a first exhaust pipe; The second liquid storage bottle is used to store hydrochloric acid solution. The second liquid storage bottle is provided with a second liquid inlet, a second connecting port and a second gas outlet. The second liquid inlet is provided with a second liquid inlet pipe, the second liquid inlet pipe is provided with a second pump body, and the second gas outlet is connected to the exhaust system through a second exhaust pipe.

2. The novel atomic fluorescence current carrier system according to claim 1 is characterized in that: The second liquid inlet pipe is provided with a connecting tee, a carrier solution inlet pipe and a sample solution inlet pipe are provided on the connecting tee, and the second pump body is provided on the carrier solution inlet pipe.

3. The novel atomic fluorescence current carrier system according to claim 1 is characterized in that: It also includes a hydrochloric acid absorber, which is arranged on the second exhaust pipe and is used for absorbing the gas volatilized by the hydrochloric acid.

4. The novel atomic fluorescence current carrier system according to claim 1 is characterized in that: It also includes a hydrogen absorber, which is arranged on the first exhaust pipe and is used for absorbing hydrogen.

5. The novel atomic fluorescence current carrier system according to claim 4 is characterized in that: An absorption chamber is arranged inside the hydrogen absorber, and an air inlet and an air outlet are arranged on the hydrogen absorber, and both the air inlet and the air outlet are communicated with the absorption chamber.

6. The novel atomic fluorescence current carrier system according to claim 5 is characterized in that: An absorption box is arranged in the absorption chamber, and a placement cavity capable of placing a solid hydrogen absorbent is arranged inside the absorption box. Air holes are arranged on opposite sides of the absorption box, and the air holes are communicated with the placement cavity.

7. The novel atomic fluorescence current carrier system according to claim 6 is characterized in that: The hydrogen absorber is also provided with an opening for placing or taking out the absorption box, and the opening is provided with a sealing plate which can be opened or closed.

8. The novel atomic fluorescence current carrier system according to claim 7 is characterized in that: It also includes a hydrogen concentration detection component. The absorption box divides the absorption chamber into an air inlet cavity and an air outlet cavity. The hydrogen concentration detection component is arranged in the air outlet cavity.

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