Portable heavy metal detection device capable of automatically replacing electrode and method
A detection device and automatic replacement technology, applied in the direction of electrochemical variables of materials, etc., can solve the problems of lack of desorption means, long test period, high detection limit, and achieve the effect of wide range of use, convenient portability and high sensitivity
Inactive Publication Date: 2019-11-26
XIAN UNIV OF TECH
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However, these detection methods have the defects that the samples need to be pretreated, the test cycle is long and the detection limit is high.
[0004] Many existing technologies disclose that graphene electrodes can detect the concentration of heavy metal ions in water. The detection principle of graphene electrodes is to utilize the adsorption of graphene or its functional modification materials to heavy metal ions, but there is still a lack of effective desorption means at present. The electrode has poor reproducibility and can only be used once, which greatly limits the application of graphene electrodes in the detection of heavy metals in water
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[0028] The structural principle and working principle of the present invention will be further described in detail below in conjunction with the drawings and embodiments.
[0029] see figure 1 , Fig. 2 (a), a kind of portable heavy metal detection device that can automatically replace electrode, includes fixed base 8, and the upper end of the rod body on the fixed base 8 is fixed with detector 1; The lower end of detector 1 is provided with working electrode mounting end 6 , the working electrode mounting end 6 is provided with a working electrode socket and an electrode clamping device, the working electrode socket is used to install the working electrode; the electrode clamping device clamps the working electrode to realize the fixing of the electrode.
[0030] Referring to Fig. 2 (b), the detector 1 on the left side of the working electrode mounting end 6 is provided with a working electrode mounting part 5; -1 is a mechanical gripper, the moving mechanism 5-2 is an XYZ th...
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The invention discloses a portable heavy metal detection device capable of automatically replacing an electrode, which is characterized in that a detector is fixed on a fixed base; the detector is provided with a working electrode mounting end, and the working electrode mounting end is provided with a working electrode socket and an electrode clamping device; the detector is provided with a working electrode mounting component; the working electrode mounting component inserts a working electrode into the working electrode socket; a shell of the detector is provided with an electrode accommodating cavity, and an electrode fixing mechanism is arranged in the electrode accommodating cavity. The detection method comprises of 1) electrode mounting; 2) an enrichment stage of metal ions to be detected; 3) a dissolution stage of the enriched metal; 4) signal processing; and 5) result output. The portable heavy metal detection device is small in size and convenient to carry. In addition, the device is internally provided with a detection electrode replacing device, can automatically replace the electrode after the electrode is used up, and has the advantages of simple and convenient operation, convenient use and wide application range.
Description
technical field [0001] The invention belongs to the technical field of water quality detection, in particular to a portable heavy metal detection device capable of automatically replacing electrodes and a method thereof. [0002] technical background [0003] With the rapid development of industrialization, urbanization and rural intensification, mining and smelting, urban sewage discharge, heavy use of heavy metal-containing pesticides and herbicides, and excessive return of livestock manure to fields have all led to the accumulation of heavy metals in the environment The volume keeps increasing. Heavy metals are not easy to be removed after being discharged into the environment. After entering the human body through the food chain, they will cause irreversible changes in the structure of proteins, thereby affecting the function of tissue cells and seriously affecting the health of the human body. The harm of heavy metal poisoning to the body is multi-system, multi-organ, m...
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IPC IPC(8): G01N27/26G01N27/30
CPCG01N27/26G01N27/30
Inventor 潘保柱李典宝韩谞陈亮赵耿楠孙贺彭增辉
Owner XIAN UNIV OF TECH