CN205449875U - Novel stripping voltammetry's heavy metal detecting system - Google Patents

Novel stripping voltammetry's heavy metal detecting system Download PDF

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Publication number
CN205449875U
CN205449875U CN201521082333.XU CN201521082333U CN205449875U CN 205449875 U CN205449875 U CN 205449875U CN 201521082333 U CN201521082333 U CN 201521082333U CN 205449875 U CN205449875 U CN 205449875U
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CN
China
Prior art keywords
microcontroller
heavy metal
electrode
stripping voltammetry
voltage signal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201521082333.XU
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Chinese (zh)
Inventor
郑淑平
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tianjin Gexin Intelligent Technology Co Ltd
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Tianjin Gexin Intelligent Technology Co Ltd
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Publication date
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Priority to CN201521082333.XU priority Critical patent/CN205449875U/en
Application granted granted Critical
Publication of CN205449875U publication Critical patent/CN205449875U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility creatively provides a novel stripping voltammetry's heavy metal detecting system, including electrolytic bath, stirring controller, microcontroller, working electrode, reference electrode, auxiliary electrode, constant potential rectifier and host computer, constant potential rectifier's detection port connects working electrode, reference electrode, auxiliary electrode, microcontroller turns into the work of voltage signal control constant potential rectifier through the DA converter with data signal, and constant potential rectifier turns into data signal through the AD converter with voltage signal and sends to the microcontroller in, microcontroller and upper computer connection. The utility model discloses create through heavy metal concentration in the stripping voltammetry measurement solution to change it into voltage signal, the AD converter changes voltage signal into and sends microcontroller behind the data signal, microcontroller carries out analysis processes with data transmission in the host computer, realize remote monitoring. The utility model discloses create simple structure, move reliably, adjust convenience, reaction sensitivity, long service life.

Description

The heavy metal detection system of novel stripping voltammetry
Technical field
The invention belongs to heavy metal analysis field, especially relates to the heavy metal detection system of novel stripping voltammetry.
Background technology
Heavy metal pollution has become as affects the key factor that the person is healthy, the heavy metals such as lead, cadmium, hydrargyrum, arsenic, it it is the development due to industrial activity, cause the enrichment in mankind's surrounding, human body is entered by big gas and water, food etc., accumulate in some organ of human body, cause chronic poisoning, be detrimental to health.
Stripping voltammetry is also known as reverse stripping polarography, this method is to make tested material, the regular hour it is electrolysed under treating the current potential that measured ion polarographic analysis produces carrying current, then the current potential of electrode is changed, make the enrichment dissolution again of material on this electrode, carry out quantitative analysis according to the volt-ampere curve obtained by process in leaching.Therefore, utilizing stripping voltammetry heavy metal to carry out detecting also is the emphasis of Electrochemical Detection research.
Summary of the invention
In view of this, the invention is directed to the heavy metal detection system of novel stripping voltammetry, to realize the fast and safely heavy metal system of Electrochemical Stripping voltammetry detection reliably.
For reaching above-mentioned purpose, the technical scheme of the invention is achieved in that
The heavy metal detection system of novel stripping voltammetry, including electrolyzer, mixing control device, microcontroller, working electrode, reference electrode, auxiliary electrode, potentiostat and host computer;Described working electrode, reference electrode, auxiliary electricity level are placed in described electrolyzer, are connected with the detection port of described potentiostat;Digital signal is converted into voltage signal by D/A converter and controls potentiostat work by described microcontroller, and voltage signal is converted into digital signal by A/D converter and sends to microcontroller by described potentiostat;It is provided with micro current amplifier in described potentiostat;Described microcontroller controls agitator by mixing control device and works;Described microcontroller is connected with described host computer by serial ports.
Further, described working electrode glass-carbon electrode.
Further, the described saturated Gan Gong of reference electrode Ag/AgC1.
Further, described auxiliary electrode uses platinum electrode.
Further, described microcontroller is single-chip microcomputer.
Further, described single-chip microcomputer is STC89C52.
Relative to prior art, the heavy metal detection system of the novel stripping voltammetry described in the invention has the advantage that the invention is passed through stripping voltammetry and measured heavy metal concentration in solution, and converts it into voltage signal;A/D converter is sent to microcontroller after voltage signal is changed into digital signal;Microcontroller sends data to be analyzed in host computer processing, it is achieved remotely monitor.The invention simple in construction, reliable, easy to adjust, be quick on the draw, service life long.
Accompanying drawing explanation
The accompanying drawing of the part constituting the invention is used for providing being further appreciated by the invention, and the schematic description and description of the invention is used for explaining the invention, is not intended that the improper restriction to the invention.In the accompanying drawings:
Fig. 1 is the structural representation of the heavy metal detection system of the novel stripping voltammetry described in the invention embodiment;
Fig. 2 is the electrical block diagram of the microcontroller described in the invention embodiment.
Detailed description of the invention
It should be noted that in the case of not conflicting, the embodiment in the invention and the feature in embodiment can be mutually combined.
In the description of the invention, it will be appreciated that, term " " center ", " longitudinally ", " laterally ", on " ", D score, " front ", " afterwards ", " left ", " right ", " vertically ", " level ", " push up ", " end ", " interior ", orientation or the position relationship of the instruction such as " outward " are based on orientation shown in the drawings or position relationship, it is for only for ease of description the invention and simplifies description, rather than indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that restriction to the invention.Additionally, term " first ", " second " etc. are only used for describing purpose, and it is not intended that indicate or imply relative importance or the implicit quantity indicating indicated technical characteristic.Thus, the feature defining " first ", " second " etc. can express or implicitly include one or more this feature.In the description of the invention, except as otherwise noted, " multiple " are meant that two or more.
In the description of the invention, it should be noted that unless otherwise clearly defined and limited, term " is installed ", " being connected ", " connection " should be interpreted broadly, and connects for example, it may be fixing, it is also possible to be to removably connect, or be integrally connected;Can be to be mechanically connected, it is also possible to be electrical connection;Can be to be joined directly together, it is also possible to be indirectly connected to by intermediary, can be the connection of two element internals.For the ordinary skill in the art, above-mentioned term concrete meaning in the invention can be understood by concrete condition.
Describe the invention below with reference to the accompanying drawings and in conjunction with the embodiments in detail.
As it is shown in figure 1, the heavy metal detection system of novel stripping voltammetry, including electrolyzer, mixing control device, microcontroller, working electrode, reference electrode, auxiliary electrode, potentiostat and host computer;Described working electrode, reference electrode, auxiliary electricity level are placed in described electrolyzer, are connected with the detection port of described potentiostat;Digital signal is converted into voltage signal by D/A converter and controls potentiostat work by described microcontroller, and voltage signal is converted into digital signal by A/D converter and sends to microcontroller by described potentiostat;It is provided with micro current amplifier in described potentiostat;Described microcontroller controls agitator by mixing control device and works;Described microcontroller is connected with described host computer by serial ports.
Described working electrode glass-carbon electrode.
The described saturated Gan Gong of reference electrode Ag/AgC1.
Described auxiliary electrode uses platinum electrode.
Described microcontroller is single-chip microcomputer, as shown in Figure 2.
Described single-chip microcomputer is STC89C52.
The work process of the invention is as follows: agitator is placed in electrolyzer by the invention, take a certain amount of solution and join in electrolyzer, insert electrodes in electrolyzer, microcontroller applies voltage by potentiostat to working electrode, mixing control device controls agitator and is stirred, potentiostat sensed current signal, transmits to microcontroller, microcontroller sends data to graphing in host computer, calculates heavy metal concentration in solution.
The foregoing is only the preferred embodiment of the invention; not in order to limit the invention; within all spirit in the invention and principle, any modification, equivalent substitution and improvement etc. made, within should be included in the protection domain of the invention.

Claims (6)

  1. The heavy metal detection system of the most novel stripping voltammetry, it is characterised in that: include electrolyzer, mixing control device, microcontroller, working electrode, reference electrode, auxiliary electrode, potentiostat and host computer;Described working electrode, reference electrode, auxiliary electrode are placed in described electrolyzer, are connected with the detection port of described potentiostat;Digital signal is converted into voltage signal by D/A converter and controls potentiostat work by described microcontroller, and voltage signal is converted into digital signal by A/D converter and sends to microcontroller by described potentiostat;It is provided with micro current amplifier in described potentiostat;Described microcontroller controls agitator by mixing control device and works;Described microcontroller is connected with described host computer by serial ports.
  2. The heavy metal detection system of novel stripping voltammetry the most according to claim 1, it is characterised in that: described working electrode glass-carbon electrode.
  3. The heavy metal detection system of novel stripping voltammetry the most according to claim 1, it is characterised in that: the described saturated Gan Gong of reference electrode Ag/AgC1.
  4. The heavy metal detection system of novel stripping voltammetry the most according to claim 1, it is characterised in that: described auxiliary electrode uses platinum electrode.
  5. The heavy metal detection system of novel stripping voltammetry the most according to claim 1, it is characterised in that: described microcontroller is single-chip microcomputer.
  6. The heavy metal detection system of novel stripping voltammetry the most according to claim 5, it is characterised in that: described single-chip microcomputer is STC89C52.
CN201521082333.XU 2015-12-22 2015-12-22 Novel stripping voltammetry's heavy metal detecting system Expired - Fee Related CN205449875U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201521082333.XU CN205449875U (en) 2015-12-22 2015-12-22 Novel stripping voltammetry's heavy metal detecting system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201521082333.XU CN205449875U (en) 2015-12-22 2015-12-22 Novel stripping voltammetry's heavy metal detecting system

Publications (1)

Publication Number Publication Date
CN205449875U true CN205449875U (en) 2016-08-10

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105388204A (en) * 2015-12-22 2016-03-09 天津格信智能科技有限公司 Heavy metal detection system adopting novel stripping voltammetry

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105388204A (en) * 2015-12-22 2016-03-09 天津格信智能科技有限公司 Heavy metal detection system adopting novel stripping voltammetry

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CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20160810

Termination date: 20181222