A UV-visible spectrophotometer with sample pretreatment

Abstract

The utility model relates to ultraviolet visible spectrophotometer technical field, and disclose a kind of ultraviolet visible spectrophotometer with sample pretreatment, including photometer body the ultraviolet visible spectrophotometer with sample pretreatment, by being provided with control component, electric push rod pushes fixed plate and stirring rod extend into holding jar, start motor drives stirring rod to rotate, the cam fixed on the surface of stirring rod synchronously rotates, cam when rotating, will resist the tangent plane of support block, when the tangent plane of support block is resisted, the fixed support plate and support block on the surface of support block along the surface of cross bar slide, and when support plate moves, the fixed movable rod of support plate bottom can be synchronized to move horizontally, sample liquid is pushed, to cooperate with the stirring rod in rotation, enhance the effect of stirring, avoid because sample liquid occurs bottoming when detecting, uneven particle distribution.

Description

Technical Field

[0001] This utility model relates to the field of ultraviolet-visible spectrophotometer technology, specifically to an ultraviolet-visible spectrophotometer with sample pretreatment. Background Technology

[0002] A UV-Vis spectrophotometer mainly consists of a light source, monochromator, absorption cell, detector, and signal processor. It is an instrument that analyzes the absorption of radiation in the UV-Vis spectral region by molecules based on the principle of UV-Vis spectrophotometry. The UV-Vis absorption spectrum of a molecule is the absorption spectrum produced by the electronic energy level transitions that occur after certain groups in the molecule absorb UV-Vis radiation. Because different substances have different molecules, atoms, and different molecular spatial structures, their absorption of light energy will also be different. Each substance has its own unique and fixed absorption spectrum curve.

[0003] Existing UV-Vis spectrophotometers simply place the sample inside the device for testing, lacking a sample pretreatment mechanism. Untreated samples, such as emulsions and suspensions, may exhibit particle aggregation or sedimentation, resulting in uneven particle distribution in each measurement. To address this issue, we propose a UV-Vis spectrophotometer with sample pretreatment capabilities. Utility Model Content

[0004] The purpose of this invention is to provide a UV-Vis spectrophotometer with sample pretreatment to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a UV-Vis spectrophotometer with sample pretreatment, comprising a spectrophotometer body, a detection chamber and a processing chamber within the spectrophotometer body, a placement container placed within the processing chamber, an electric push rod disposed on the inner wall of the processing chamber, a fixing plate fixedly mounted on the bottom of the electric push rod, the bottom of the fixing plate rotatably connected to the top of a stirring rod, the top of the stirring rod fixedly connected to the output shaft of a motor, the motor fixedly mounted on the top of the fixing plate, and a control component disposed at the bottom of the fixing plate, the control component comprising:

[0006] A movable rod, which is connected to a support block via a support plate;

[0007] A support block, which is used to support the lateral movement of the support plate;

[0008] The processing component is used to pretreat the sample, thereby cooperating with the rotating stirring rod to enhance the stirring effect and prevent the sample liquid from settling at the bottom during detection.

[0009] Preferably, the movable rod is fixedly installed on the top of the support plate, a support block is fixedly installed on the side of the support plate, and a support block is fixedly installed on the top of the support plate. The support block passes through the fixed plate and is slidably connected to the fixed plate. When the support block slides inside the fixed plate, the support plate fixed at the bottom of the support block can drive the movable rod to move synchronously.

[0010] Preferably, the processing component includes a crossbar, which is fixedly installed on the inner wall of the fixed plate. The crossbar passes through the support block and is slidably connected to the support block. The crossbar ensures the stability of the support block during lateral movement.

[0011] Preferably, the arc surface of the crossbar is fixedly connected to one end of the first spring, and the other end of the first spring is fixedly installed on the side of the support block. When the support block is no longer under force, it can spring up under the action of the first spring.

[0012] Preferably, a flat plate is fixedly installed on the top of the support block, and a support rod is fixedly installed on the side of the flat plate. When the support block slides within the fixed plate, the flat plate can drive the support rod to slide synchronously.

[0013] Preferably, the fixing plate is penetrated by the vertical rod and slidably connected to the vertical rod. The arc surface of the vertical rod is fixedly connected to one end of the second spring. The other end of the second spring is fixedly installed at the bottom of the fixing plate. A circular plate is fixedly installed at the bottom of the vertical rod. When the cut surface of the vertical rod is no longer in contact, it can spring up from the fixing plate under the action of the second spring.

[0014] Preferably, the stirring rod passes through the cam and is fixedly connected to the cam, and the cam is rotatably connected to the bottom of the fixed plate. When the stirring rod rotates at the bottom of the fixed plate, the cam fixed to the surface of the stirring rod can rotate synchronously.

[0015] Compared with the prior art, this utility model provides a UV-Vis spectrophotometer with sample pretreatment, which has the following advantages:

[0016] 1. This UV-Vis spectrophotometer with sample pretreatment is equipped with a control component. An electric push rod pushes a fixed plate and a stirring rod into the placement container. The motor is started to drive the stirring rod to rotate. The cam fixed on the surface of the stirring rod rotates synchronously. When the cam rotates, it will abut against the cross-section of the support block. When the cross-section of the support block is abutted, the support plate and support block fixed on the surface of the support block slide along the surface of the crossbar. When the support plate moves, the movable rod fixed at the bottom of the support plate can move laterally at the same time, pushing the sample liquid. This can cooperate with the rotating stirring rod to enhance the stirring effect and avoid the sample liquid settling to the bottom and uneven particle distribution during detection.

[0017] 2. This UV-Vis spectrophotometer with sample pretreatment features a processing component. During the lateral movement of the support block, the plate fixed to the surface of the support block can drive the support rod to slide synchronously on the top of the fixed plate. As the support rod moves, it will contact the cross-section of the vertical rod. When the cross-section of the vertical rod is contacted, the circular plate fixed at the bottom of the vertical rod can swing longitudinally in the placement container, thereby enhancing the multiple flow modes of the sample liquid and avoiding sedimentation. Attached Figure Description

[0018] Figure 1 This is a front view structural diagram of the present invention;

[0019] Figure 2 This is a frontal cross-sectional view of the present invention.

[0020] Figure 3 This is a schematic diagram of the control component structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the processing component of this utility model.

[0022] In the diagram: 1. Photometer body; 2. Detection chamber; 3. Processing chamber; 4. Placement tank; 5. Electric push rod; 6. Fixing plate; 7. Stirring rod; 8. Motor; 9. Control component; 91. Movable rod; 92. Support plate; 93. Support block; 94. Support block; 95. Processing component; 951. Crossbar; 952. Spring 1; 953. Flat plate; 954. Support rod; 955. Vertical rod; 956. Circular plate; 957. Spring 2; 958. Cam. Detailed Implementation

[0023] like Figures 1-4As shown, this utility model provides a technical solution: a UV-Vis spectrophotometer with sample pretreatment, including a spectrophotometer body 1, a detection chamber 2 inside the spectrophotometer body 1, a processing chamber 3 inside the spectrophotometer body 1, a placement container 4 placed inside the processing chamber 3, an electric push rod 5 provided on the inner wall of the processing chamber 3, a fixing plate 6 fixedly installed at the bottom of the electric push rod 5, the bottom of the fixing plate 6 being rotatably connected to the top of a stirring rod 7, the top of the stirring rod 7 being fixedly connected to the output shaft of a motor 8, the motor 8 being fixedly installed on the top of the fixing plate 6, and a control component 9 provided at the bottom of the fixing plate 6, the control component 9 including: a movable rod 91. The support plate 92, support block 93, support block 94, and processing component 95, when the stirring rod 7 rotates, the cam 958 fixed on the surface of the stirring rod 7 rotates synchronously. When the cam 958 rotates, it will abut against the cross surface of the support block 93. When the cross surface of the support block 93 is abutted, the support plate 92 and support block 94 fixed on the surface of the support block 93 slide along the surface of the cross bar 951. When the support plate 92 moves, the movable rod 91 fixed at the bottom of the support plate 92 can move laterally synchronously to push the sample liquid, so as to cooperate with the rotating stirring rod 7, enhance the stirring effect, and avoid the sample liquid settling at the bottom during detection.

[0024] The movable rod 91 is fixedly installed on the top of the support plate 92. A support block 93 is fixedly installed on the side of the support plate 92, and a support block 94 is fixedly installed on the top of the support plate 92. The support block 94 passes through the fixed plate 6 and is slidably connected to the fixed plate 6. When the support block 94 slides within the fixed plate 6, the support plate 92 fixed to the bottom of the support block 94 can drive the movable rod 91 to move synchronously. The processing component 95 includes a crossbar 951, which is fixedly installed on the inner wall of the fixed plate 6. The crossbar 951 passes through the support block 94 and is slidably connected to the support block 94. The crossbar 951 ensures the stability of the support block 94 during lateral movement. The arc surface of the crossbar 951 is fixedly connected to one end of a spring 952, and the other end of the spring 952 is fixedly installed on the side of the support block 94. When the support block 94 is no longer under force, it can spring up under the action of the spring 952. A flat plate 953 is fixedly installed on the top of the support block 94, and a support rod 954 is fixedly installed on the side of the flat plate 953. When the support block 94 slides within the fixed plate 6, the flat plate 953 can drive the support rod 954 to slide synchronously. The fixed plate 6 is penetrated by a vertical rod 955 and slidably connected to the vertical rod 955. The arc surface of the vertical rod 955 is fixedly connected to one end of a second spring 957, and the other end of the second spring 957 is fixedly installed at the bottom of the fixed plate 6. A circular plate 956 is fixedly installed at the bottom of the vertical rod 955. When the cut surface of the vertical rod 955 is no longer in contact, it can spring up from within the fixed plate 6 under the action of the second spring 957. The stirring rod 7 penetrates the cam 958 and is fixedly connected to the cam 958. The cam 958 is rotatably connected to the bottom of the fixed plate 6. When the stirring rod 7 rotates at the bottom of the fixed plate 6, the cam 958 fixed to the surface of the stirring rod 7 can rotate synchronously.

[0025] In this invention, during use, a solvent such as pure water is first used as a blank sample to measure the reference light intensity to eliminate background absorption of the cuvette and solvent. Then, the sample liquid to be tested is placed into the placement tank 4. After placement, the placement tank 4 is placed into the processing chamber 3. The electric push rod 5 in the processing chamber 3 is then driven, pushing the fixed plate 6 downwards. The stirring rod 7 fixed at the bottom of the fixed plate 6 extends into the placement tank 4. After placement, the motor 8 at the top of the fixed plate 6 is started. The output shaft of the motor 8 drives the stirring rod 7 to rotate, agitating the sample liquid. While the stirring rod 7 rotates, the cam 958 fixed to the surface of the stirring rod 7 rotates synchronously. When the cam 958 rotates, it contacts the cross-section of the support block 93. When the cross-section of the support block 93 is contacted, the support plate 92 and the support block 94 fixed to the surface of the crossbar 951 slide along the surface of the crossbar 951. When the support plate 92 moves, the movable rod 91 fixed at the bottom of the support plate 92 can move laterally simultaneously, pushing the sample liquid... The moving part of the support block 94 can cooperate with the rotating stirring rod 7 to enhance the stirring effect and avoid uneven particle distribution due to sedimentation of the sample liquid during detection. During the lateral movement of the support block 94, the plate 953 fixed on the surface of the support block 94 can drive the support rod 954 to slide synchronously on the top of the fixed plate 6. During the movement of the support rod 954, the support rod 954 will contact the cross-section of the vertical rod 955. When the cross-section of the vertical rod 955 is contacted, the circular plate 956 fixed at the bottom of the vertical rod 955 can swing longitudinally in the placement tank 4, thereby enhancing the multiple flow modes of the sample liquid and avoiding sedimentation. After stirring, the electric push rod 5 is driven to lift the fixed plate 6, and the stirring rod 7 can be moved out of the placement tank 4 synchronously. After being moved out, the placement tank 4 is taken out of the processing chamber 3 and then placed into the detection chamber 2. The test solution in the placement tank 4 absorbs part of the light, and the remaining light intensity is calculated based on the absorbance. The concentration is then converted by combining the standard curve.

[0026] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A UV-Vis spectrophotometer with sample pretreatment, comprising a spectrophotometer body (1), characterized in that: The photometer body (1) has a detection chamber (2) and a processing chamber (3). A placement container (4) is placed in the processing chamber (3). An electric push rod (5) is provided on the inner wall of the processing chamber (3). A fixing plate (6) is fixedly installed at the bottom of the electric push rod (5). The bottom of the fixing plate (6) is rotatably connected to the top of the stirring rod (7). The top of the stirring rod (7) is fixedly connected to the output shaft of the motor (8). The motor (8) is fixedly installed on the top of the fixing plate (6). A control component (9) is provided at the bottom of the fixing plate (6). The control component (9) includes: A movable rod (91) is connected to a support block (93) via a support plate (92); Support block (94), the support block (94) is used to support the lateral movement of the support plate (92); Processing unit (95) is used to pre-treat the sample.

2. The UV-Vis spectrophotometer with sample pretreatment according to claim 1, characterized in that: The movable rod (91) is fixedly installed on the top of the support plate (92), the side of the support plate (92) is fixedly installed with a support block (93), the top of the support plate (92) is fixedly installed with a support block (94), and the support block (94) passes through the fixed plate (6) and is slidably connected to the fixed plate (6).

3. A UV-Vis spectrophotometer with sample pretreatment according to claim 1, characterized in that: The processing component (95) includes a crossbar (951), which is fixedly installed on the inner wall of the fixing plate (6). The crossbar (951) passes through the support block (94) and is slidably connected to the support block (94).

4. A UV-Vis spectrophotometer with sample pretreatment according to claim 3, characterized in that: The arc surface of the crossbar (951) is fixedly connected to one end of the spring (952), and the other end of the spring (952) is fixedly installed on the side of the support block (94).

5. A UV-Vis spectrophotometer with sample pretreatment according to claim 4, characterized in that: A plate (953) is fixedly installed on the top of the support block (94), and a support rod (954) is fixedly installed on the side of the plate (953).

6. A UV-Vis spectrophotometer with sample pretreatment according to claim 1, characterized in that: The fixing plate (6) is penetrated by the vertical rod (955) and slidably connected to the vertical rod (955). The arc surface of the vertical rod (955) is fixedly connected to one end of the second spring (957). The other end of the second spring (957) is fixedly installed at the bottom of the fixing plate (6). A circular plate (956) is fixedly installed at the bottom of the vertical rod (955).

7. A UV-Vis spectrophotometer with sample pretreatment according to claim 1, characterized in that: The stirring rod (7) passes through the cam (958) and is fixedly connected to the cam (958). The cam (958) is rotatably connected to the bottom of the fixing plate (6).

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