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Portable USB (universal serial bus) interface based heavy metal ion detection device and electrode card

A USB interface, heavy metal ion technology, applied in electrical digital data processing, material electrochemical variables, instruments, etc., can solve the problems of inconvenient connection between electrodes and detection systems, increase the versatility and stability of electrode connection of detection devices, etc. Increases convenience and versatility, improves stability, and reduces wear and tear

Pending Publication Date: 2017-12-22
NANJING ENTRY EXIT INSPECTION & QUARANTINE BUREAU OF THE PEOPLES REPUBLIC OF CHINA +1
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Problems solved by technology

[0005] The present invention aims at the problem of inconvenient connection between the electrode and the detection system in the existing electrode card detection device, and provides a new type of portable USB interface heavy metal ion detection device and electrode card. The interface end and the electrode card are designed according to the USB standard. The connecting pin of the electrode greatly increases the versatility and stability of the electrode connection of the detection device

Method used

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  • Portable USB (universal serial bus) interface based heavy metal ion detection device and electrode card
  • Portable USB (universal serial bus) interface based heavy metal ion detection device and electrode card
  • Portable USB (universal serial bus) interface based heavy metal ion detection device and electrode card

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[0027] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following will describe in detail with reference to the drawings and specific embodiments.

[0028] The present invention uses anodic stripping voltammetry to detect the concentration of heavy metal ions in the solution. The detection method belongs to a kind of voltammetry in electrochemical analysis, and is suitable for the determination of metal ions. With its extremely low cost and high sensitivity, it has become the first choice for heavy metal detection. Commonly used methods, the detection limit can reach ppb ~ ppt level, and can be applied to the analysis and detection of more than 30 elements.

[0029] The usual ASV detection principle is as follows: figure 1 As shown in the voltammetric curve, when ASV is detected, a voltage is applied between the electrodes, and the working electrode is used as the cathode for pre-electrolysis, so tha...

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Abstract

An embodiment of the invention provides a portable USB (universal serial bus) interface based heavy metal ion detection device assembled by an electrode card and a thin-layer flow cell as well as the electrode card adopted by the heavy metal ion detection device. Three electrodes, namely, a working electrode, a counter electrode and a reference electrode, are arranged on the surface of the electrode card, and the electrode card is tightly inserted into a card slot of the thin-layer flow cell in a pluggable manner; three strip-shaped connecting pins of the three electrodes are parallelly arranged at an end part of the electrode card to form an interface end, a USB interface is formed by the interface end and the connecting pins according to USB specifications, and when a USB plug is inserted into the interface end, the three connecting pins are contacted and communicated with different pins in the USB plug. The interface of the electrode card is normalized according to the USB standards, the USB plug can be inserted into the interface conveniently for powering the electrodes, convenience and universality of the electrode card and the detection device are improved greatly, the electrode clamping stability is improved, and wear of the connecting pins of the electrodes during use is reduced.

Description

technical field [0001] The invention relates to the technical field of environmental detection, in particular to a portable USB (Universal Serial Bus, universal serial bus) interface heavy metal ion detection device, which can be used for anodic stripping voltammetry analysis to quickly detect trace heavy metal ions in a solution. The invention also provides an electrode card with a USB interface at one end of the detection device. Background technique [0002] A large amount of electronic waste generated by the development of the global electronic and electrical industry has caused serious environmental pollution problems and posed severe challenges to the global ecological environment. At present, although the pre-treatment technology of electrical products is very mature, such as using microwave digestion technology to achieve batch processing, the equipment does not have high requirements on the environment and site, and can be used for on-site testing. At present, most...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N27/48G06F13/40
CPCG06F13/4081G01N27/48
Inventor 洪颖陈国松董晓臣唐美华吴仰耘于亚宾陶涛彭晨査燕青张跃
Owner NANJING ENTRY EXIT INSPECTION & QUARANTINE BUREAU OF THE PEOPLES REPUBLIC OF CHINA
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