CN109406592B - Portable electrochemistry heavy metal detection device - Google Patents
Portable electrochemistry heavy metal detection device Download PDFInfo
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- CN109406592B CN109406592B CN201811352154.1A CN201811352154A CN109406592B CN 109406592 B CN109406592 B CN 109406592B CN 201811352154 A CN201811352154 A CN 201811352154A CN 109406592 B CN109406592 B CN 109406592B
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
- G01N27/28—Electrolytic cell components
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Abstract
The invention discloses a portable electrochemical heavy metal detection device which comprises a detection unit, a movement unit, a rotation unit and a control unit, wherein the detection unit comprises a wire box and a detection head, a rotating shaft connected with the detection head is arranged in the wire box, the movement unit is connected with the wire box and drives the wire box to move up and down, the control unit comprises a base, a motor, a circuit control board and a battery are arranged in the base, the motor is electrically connected with the circuit control board and the battery, the rotation unit comprises a cup stand and a sample cup placed on the cup stand, and the cup stand is fixedly connected with the rotating shaft of the motor. Compared with the prior art, the portable electrochemical heavy metal detection device provided by the invention has the advantages of compact and small structure, portability and easiness in operation, and not only can be independently used as an instrument, but also can be placed in other modules as a module.
Description
Technical Field
The invention relates to the field of analysis and detection of heavy metals, in particular to a portable electrochemical heavy metal detection device.
Background
Electrochemical analysis (electrochemical methods) is an instrumental analysis method based on the electrochemical properties of substances in solution, which is based on the electrochemical properties and the change rule of substances in solution and on the measurement relationship between electric quantities such as potential, conductance, current and electric quantity and some quantities of the substances to be measured, and carries out qualitative and quantitative analysis on the components. The electrochemical-anodic stripping voltammetry has the characteristics of extremely low cost and high sensitivity for detecting heavy metals. The traditional heavy metal detection method mainly uses methods such as atomic absorption spectrometry, atomic fluorescence method and the like for detection, and has the advantages of high instrument cost, large volume and complex detection, and needs professional personnel for operation. Therefore, it is urgent to develop an electrochemical heavy metal detection device with small volume and simple operation.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a portable electrochemical heavy metal detection device which is compact and small in structure and convenient to carry.
The technical scheme adopted for solving the technical problems is as follows: the utility model provides a portable electrochemistry heavy metal detection device, includes detecting element, motion unit, rotation unit and the control unit, detecting element includes the line box and detects the head, be equipped with the pivot of being connected with detecting the head in the line box, motion unit and line box connection and drive line box reciprocate, the control unit includes the base, be equipped with motor, circuit control panel and battery in the base, the motor is connected with circuit control panel and battery electricity, the rotation unit includes the saucer and places the sample cup on the saucer, the motor shaft fixed connection of saucer and motor.
Furthermore, the detection head is provided with a detection circuit board and an electrode chip, and the electrode chip is installed on a terminal of the detection circuit board.
Further, the movement unit is pressed on the base through the first baffle.
Furthermore, the motion unit comprises a lifting rod and a lifting rod fixing piece fixed at the end part of the lifting rod, and the lifting rod fixing piece is connected with the first baffle.
Furthermore, a second baffle is arranged on the lifting rod, and magnets which attract each other are arranged on the first baffle and the second baffle.
Furthermore, a switch button is arranged on the side wall of the base.
Further, the motor is fixed on the base through the motor pressing sheet.
Furthermore, a battery box for installing a battery is arranged on the base.
Furthermore, a plurality of foot pads which are uniformly distributed are arranged at the bottom of the base.
Has the advantages that: compared with the prior art, the portable electrochemical heavy metal detection device provided by the invention has the advantages of compact and small structure, portability and easiness in operation, and not only can be independently used as an instrument, but also can be placed in other modules as a module.
Drawings
The invention is further described with reference to the following figures and examples:
FIG. 1 is a schematic external view of the present invention;
FIG. 2 is a schematic view showing an external structure when the cover of the thread cassette is opened;
FIG. 3 is an external view of another aspect of the present invention (the detection head is in a horizontal position);
fig. 4 is an exploded view of the control unit of the present invention.
Detailed Description
Referring to fig. 1 to 4, the present invention is a portable electrochemical heavy metal detection device, including a detection unit 1, a movement unit 2, a rotation unit 3 and a control unit 4; the detection unit 1 comprises a wire box 11 and a detection head 12, wherein a rotating shaft 13 connected with the detection head 12 is arranged in the wire box 11, and the detection head 12 can rotate 90 degrees around the rotating shaft 13; the moving unit 2 is connected with the wire box 11 and drives the wire box 11 to move up and down; the control unit 4 comprises a base 41, a motor 42, a circuit control board 43 and a battery 44 are arranged in the base 41, the motor 42 is fixed on the base 41 through a motor pressing sheet 46, the motor 42 is electrically connected with the circuit control board 43 and the battery 44, a switch button 45 is arranged on the side wall of the base 41 to control the on-off of the motor 42, a battery box 47 for mounting the battery 44 is arranged on the base 41, the battery 44 is arranged in the battery box 47, and then the battery cover 49 is covered to form a whole and then is fixed on the base 41 through screws; the rotating unit 3 comprises a cup holder 31 and a sample cup 32 placed on the cup holder 31, and the cup holder 31 is fixedly connected with a motor rotating shaft of a motor 42. The detecting unit 1 is used for carrying out electrochemical detection on a sample to be detected in a test tube, the moving unit 2 can enable the detecting unit 1 to move up and down so as to carry out electrochemical detection on the sample to be detected, the motor 42 drives the sample cup 32 in the rotating unit 3 to rotate, stirring of the sample to be detected in the sample cup 32 is realized under the condition that other auxiliary equipment is not used, and the control unit 4 controls the motor 42 to rotate and controls the sending and the collection of electrochemical signals. The portable electrochemical heavy metal detection device has the advantages of compact and small structure, portability and easy operation, and can be used as an instrument independently and also placed in other modules as a module.
Specifically, the detection head 12 is provided with a detection circuit board 14 and an electrode chip 15, the electrode chip 15 is mounted on a terminal of the detection circuit board 14, so that the electrode chip 15 can be conveniently disassembled and assembled, and the electrode chip 15 is contacted with a sample to be detected to perform electrochemical detection. The signal interface of the electrode chip 15 is a three-electrode interface, which is a counter electrode, a working electrode and a reference electrode. Is connected with the terminals of FPC1.0-8pin of the detection circuit board 14, and is introduced into the detection unit 1 for detection through a connecting circuit in the detection process. A three-electrode interface is led out from a traditional electrochemical workstation through an external lead, and the electrochemical detection becomes simple to operate and the detection device is more portable by adopting the design.
The movement unit 2 comprises a lifting rod 21 and a lifting rod fixing piece 22 fixed at the end part of the lifting rod 21, the lifting rod fixing piece 22 is connected with a first baffle plate 23, and the movement unit 2 is pressed on the base 41 through the first baffle plate 23. The lifting rod 21 is provided with a second baffle plate 24, the first baffle plate 23 and the second baffle plate 24 are provided with magnets 25 which attract each other, the magnets 25 are fixed in the mounting holes of the first baffle plate 23 and the second baffle plate 24 and play a role of attracting each other to the moving unit 2, so that the moving unit 2 can be fixed relative to the base 41 when not moving up and down. When the electrode chip 15 needs to be installed and replaced, the lifting rod 21 is manually lifted, the detection unit 1 is also lifted at the same time, the detection head 12 leaves the sample cup 32, and then the detection head 12 rotates 90 degrees around the rotating shaft 13 to be horizontal, so that the electrode chip 15 can be conveniently and simply installed.
The rotating unit 3 is used for driving the sample cup 32 to rotate through the motor 42, so as to stir the sample to be detected in the sample cup 32. The electrochemical-anodic stripping voltammetry needs to be subjected to an enrichment process during detection of heavy metals, and the main purpose of stirring a sample to be detected is to improve the enrichment efficiency. The traditional stirring of the sample to be detected is realized by a magnetic stirrer, a sample reaction cup and a stirrer, the operation is complex, and multiple devices are needed for assistance. The portable electrochemical heavy metal detection device can stir a sample to be detected under the condition of not using other auxiliary equipment through the rotating unit 3, thereby simplifying the operation process and improving the portability of the detection device.
The control unit 4 controls the motor 42 to rotate and controls the sending and collecting of the electrochemical signals. The motor 42 is a direct current gear reduction motor, and the rotating speed of the motor 42 can be adjusted by controlling the duty ratio of PWM (pulse width modulation) through the control of a singlechip program of the control unit 4. The transmission and collection of the control electrochemical signal are realized on a circuit control board 43, and mainly comprise a constant potential circuit, a constant current circuit and a micro current collection circuit.
As a preferred embodiment of the present invention, the bottom of the base 41 is provided with a plurality of evenly distributed foot pads 48. The foot pad 48 enables the portable electrochemical heavy metal detection device to be stably placed on a horizontal plane.
Preferably, a light guide pillar 410 is further disposed on the sidewall of the base 41 to observe the operation indicator light of the motor 42.
While the embodiments of the present invention have been described in detail with reference to the drawings, the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.
Claims (5)
1. A portable electrochemistry heavy metal detection device which is characterized in that: including detecting element (1), motion unit (2), rotation unit (3) and control unit (4), detecting element (1) is including line box (11) and detection head (12), be equipped with pivot (13) of being connected with detection head (12) in line box (11), it can revolute the rotation of axes 90 to detect head (12), motion unit (2) are connected with line box (11) and drive line box (11) and reciprocate, control unit (4) are including base (41), be equipped with motor (42), circuit control board (43) and battery (44) in base (41), motor (42) are connected with circuit control board (43) and battery (44) electricity, rotation unit (3) are including saucer (31) and place sample cup (32) on saucer (31), saucer (31) and the motor pivot fixed connection of motor (42), be equipped with detection circuit board (14) and electrode chip (15) on detecting head (12), install on the terminal of detection circuit board (14) electrode chip (15), locomotion unit (2) are pressed fit on base (41) through first baffle (23), locomotion unit (2) include lifter (21) and fix lifter stationary blade (22) at lifter (21) tip, lifter stationary blade (22) are connected with first baffle (23), be equipped with second baffle (24) on lifter (21), be equipped with magnet (25) that attract mutually on first baffle (23) and second baffle (24).
2. The portable electrochemical heavy metal detection device of claim 1, characterized in that: and a switch button (45) is arranged on the side wall of the base (41).
3. The portable electrochemical heavy metal detection device of claim 1, characterized in that: the motor (42) is fixed on the base (41) through a motor pressing sheet (46).
4. The portable electrochemical heavy metal detection device of claim 1, characterized in that: the base (41) is provided with a battery box (47) for mounting a battery (44).
5. The portable electrochemical heavy metal detection device of claim 1, characterized in that: the bottom of the base (41) is provided with a plurality of foot pads (48) which are uniformly distributed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811352154.1A CN109406592B (en) | 2018-11-14 | 2018-11-14 | Portable electrochemistry heavy metal detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811352154.1A CN109406592B (en) | 2018-11-14 | 2018-11-14 | Portable electrochemistry heavy metal detection device |
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| Publication Number | Publication Date |
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| CN109406592A CN109406592A (en) | 2019-03-01 |
| CN109406592B true CN109406592B (en) | 2021-02-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811352154.1A Active CN109406592B (en) | 2018-11-14 | 2018-11-14 | Portable electrochemistry heavy metal detection device |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113945624A (en) * | 2020-07-16 | 2022-01-18 | 武汉市农业科学院 | Portable food heavy metal detection system |
| CN113820372A (en) * | 2021-10-27 | 2021-12-21 | 浙江铭谱生物科技有限公司 | Heavy metal fast detector |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201434866Y (en) * | 2009-04-14 | 2010-03-31 | 江南大学 | Fully-automatic petroleum asphalt penetration measuring instrument |
| JP2012103008A (en) * | 2010-11-05 | 2012-05-31 | Olympus Corp | Biotissue treating apparatus |
| KR101300445B1 (en) * | 2011-12-14 | 2013-08-27 | 손동현 | The auto treat equipment to a heavy metal analysis of soil |
| CN106950264A (en) * | 2017-05-17 | 2017-07-14 | 武汉中科志康生物科技有限公司 | A kind of Portable heavy metal detector and its detection method |
| CN206832739U (en) * | 2017-05-17 | 2018-01-02 | 武汉中科志康生物科技有限公司 | A kind of Portable heavy metal detector |
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2018
- 2018-11-14 CN CN201811352154.1A patent/CN109406592B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201434866Y (en) * | 2009-04-14 | 2010-03-31 | 江南大学 | Fully-automatic petroleum asphalt penetration measuring instrument |
| JP2012103008A (en) * | 2010-11-05 | 2012-05-31 | Olympus Corp | Biotissue treating apparatus |
| KR101300445B1 (en) * | 2011-12-14 | 2013-08-27 | 손동현 | The auto treat equipment to a heavy metal analysis of soil |
| CN106950264A (en) * | 2017-05-17 | 2017-07-14 | 武汉中科志康生物科技有限公司 | A kind of Portable heavy metal detector and its detection method |
| CN206832739U (en) * | 2017-05-17 | 2018-01-02 | 武汉中科志康生物科技有限公司 | A kind of Portable heavy metal detector |
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| CN109406592A (en) | 2019-03-01 |
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