Card-inserted microelectrode integrated sensing chip and application thereof in rapid detection of metal ions

A sensor chip and micro-electrode technology, applied in the field of electrochemical detection, can solve the problems of unfavorable mass production, complex and cumbersome processing technology, and high cost, and achieve the effects of shortening electrode spacing, improving sensitivity, and improving detection data accuracy.

Pending Publication Date: 2021-12-21
广州钰芯传感科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] At the same time, the core detection components of the current instant detection electrochemical sensors mostly use detection cards and detection strips as consumables. Based on the technical requirements of multi-parameter electrochemical detection, the processing technology of such detection components is complex and cumbersome, and the cost is high. , in order to read multi-parameter electrical signals, it is also required to design corresponding reading equipment, which is not conducive to mass production

Method used

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  • Card-inserted microelectrode integrated sensing chip and application thereof in rapid detection of metal ions
  • Card-inserted microelectrode integrated sensing chip and application thereof in rapid detection of metal ions
  • Card-inserted microelectrode integrated sensing chip and application thereof in rapid detection of metal ions

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Effect test

Embodiment 1

[0074] A plug-in microelectrode integrated sensor chip, such as attached figure 1 And attached figure 2 As shown, a detection area is set on the upper front of the sensor chip, and two microelectrode modules are integrated in the detection area. The microelectrode module includes four working electrodes, two reference electrodes and one counter electrode. The electrode is the center, the four corners are symmetrically distributed with working electrodes, and the two ends are symmetrically distributed with reference electrodes. The counter electrode is a corner-cut rectangle, and the working electrode is arranged at the oblique four corners of the counter electrode. The four working electrodes of the microelectrode module share the same pair of electrodes, and the two working electrodes on the same side as the reference electrode share the same reference electrode. Different working electrodes can detect different substances.

[0075] The lower end of the back of the sensor ...

Embodiment 2

[0088] A plug-in microelectrode integrated sensor chip, such as attached Figure 5 And attached Figure 6 As shown, a detection area is set on the upper front of the sensor chip, and a microelectrode module is integrated in the detection area, including four working electrodes, two reference electrodes and one counter electrode. Specifically, the counter electrode is the center, and the four corners The working electrodes are symmetrically distributed, and the reference electrodes are symmetrically distributed at both ends. The counter electrode is a corner-cut rectangle, and the working electrode is arranged at the oblique four corners of the counter electrode. The four working electrodes of the microelectrode module share the same pair of electrodes, and the two working electrodes on the same side as the reference electrode share the same reference electrode. Different working electrodes can detect different substances.

[0089] The lower end of the back of the sensor chip...

Embodiment 3

[0101] A plug-in microelectrode integrated sensor chip, such as attached Figure 9 And attached Figure 10 As shown, a detection area is set on the upper front of the sensor chip, and three microelectrode modules are integrated in the detection area. The microelectrode module includes four working electrodes, two reference electrodes and one counter electrode. Specifically, the counter electrode As the center, the four corners are symmetrically distributed with working electrodes, and the two ends are symmetrically distributed with reference electrodes. The counter electrode is a corner-cut rectangle, and the working electrode is arranged at the oblique four corners of the counter electrode. The four working electrodes of the microelectrode module share the same pair of electrodes, and the two working electrodes on the same side as the reference electrode share the same reference electrode. Different working electrodes can detect different substances.

[0102] The lower end ...

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Abstract

The invention provides a plug-in card type microelectrode integrated sensing chip and application thereof in rapid detection of metal ions. The sensing chip comprises a chip substrate, a plurality of microelectrodes and a plurality of electrode pins, wherein a detection area is arranged on one side of a front surface of the sensing chip, and a pin area is arranged on the other side of the back surface of the sensing chip; a plurality of microelectrode modules are integrated in the detection area, each microelectrode module comprises working electrodes, reference electrodes and a counter electrode, specifically, with the counter electrode as the center, the working electrodes are symmetrically distributed at the four corners, and the reference electrodes are symmetrically distributed at the two ends; the pin area is provided with a plurality of electrode pins, and the electrode pins are metal strips which are parallel, equidistant and consistent in size; four working electrodes of the same microelectrode module share the same pair of electrodes, the two working electrodes located on the same side with the reference electrode share the same reference electrode, and different working electrodes can detect different substances. The sensing chip can be used for detecting metal ions including lead, cadmium, zinc, copper, cobalt, chromium, nickel and molybdenum.

Description

technical field [0001] The invention belongs to the field of electrochemical detection, and in particular relates to a card-type micro-electrode integrated sensor chip and its application in express detection of metal ions. Background technique [0002] Heavy metal refers to the density of 4.5g / cm 3 above metal elements. At present, my country's metal ion pollution, especially heavy metal pollution, is very serious, mainly including copper, zinc, arsenic, mercury, lead, etc. The main pollution is water pollution and soil pollution. The output of heavy metals in industrial wastewater is 24,300 tons, and 120,000 tons of food is polluted by heavy metals every year, causing direct economic losses of more than 20 billion yuan. Heavy metal pollution can cause serious harm to human health, including headaches, dizziness, insomnia, forgetfulness, nervous disorders, joint pain, stones, cancer, etc. Therefore, the prevention and control of heavy metal pollution is an extremely impo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N27/27G01N27/30
CPCG01N27/27G01N27/30G01N27/301G01N27/307
Inventor 奚亚男胡保帅崔皓博
Owner 广州钰芯传感科技有限公司
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