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A rapid heavy metal detector based on an enzyme immunosensor and its detection method

An immune sensor and heavy metal technology, which is applied in the field of heavy metal rapid detectors, to achieve the effect of saving detection costs and high accuracy

Inactive Publication Date: 2015-12-09
SHANDONG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It can accurately know whether the heavy metal contained in the sample exceeds the standard, what kind of heavy metal and its concentration can be obtained

Method used

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  • A rapid heavy metal detector based on an enzyme immunosensor and its detection method
  • A rapid heavy metal detector based on an enzyme immunosensor and its detection method

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Embodiment Construction

[0029] Firstly, explain the schematic block diagram of the structure of the present invention; secondly, describe in detail the constant potential circuit and A / D conversion pre-processing circuit included in the signal detection and processing system; finally, explain the application software and detection process of the whole system .

[0030] figure 1 It is a structural block diagram of a heavy metal rapid detector based on an enzyme immunosensor in the present invention. Such as figure 1 As shown, the present invention consists of a three-electrode system, a signal detection and processing system, a display and printing storage system, and a power supply system. The three-electrode system collects weak current signals through enzyme sensors and immune sensors; the signal detection and processing system performs I / V conversion, amplification, filtering, and A / D conversion on the weak current signals collected by the three electrodes, and finally sends digital signals to ...

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Abstract

The invention discloses a rapid heavy metal detector based on enzyme and immune sensors, which belongs to the technical field of agricultural product safety detection. The rapid heavy metal detector based on the enzyme and immune sensors provided by the invention is composed of a three-electrode system, a signal detection and processing system, a display and printing storage system and a power supply system, wherein the three-electrode system is used for measuring the changes of a current before and after contacting a sample by virtue of the enzyme sensor so as to the know whether heavy metals contained in the sample exceed standards or not, and if the heavy metals exceed standards, the immune sensor is used for measuring the changes of the current before and after contacting the sample so as to know information such as the types and the concentration of the heavy metals in the sample. The detector provided by the invention is simple to operate, low in price, high in sensitivity, good in repeatability, capable of realizing online rapid detection, and applicable to field rapid detection on agricultural products.

Description

technical field [0001] The invention relates to a heavy metal rapid detector based on an enzyme immunosensor, belonging to the technical field of agricultural product safety detection. technical background [0002] my country is a large agricultural country, and the total output of vegetables and fruits ranks first in the world. However, with the development of industrialization and the continuous progress of agricultural science and technology, food safety issues have become increasingly prominent, especially the excessive content of heavy metals in fruits and vegetables, which has attracted people's attention. Due to the direct discharge of industrial wastewater and urban domestic water, the agricultural utilization of solid waste such as sludge and garbage, the substandard discharge of waste from human activities such as mining, smelting, papermaking, and transportation, and the pollution of chemical fertilizers, agriculture, and plastic films, etc. , may lead to excessiv...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N33/543G01N27/26
CPCG01N33/5302
Inventor 孙霞郭业民王相友刘君峰赵文苹
Owner SHANDONG UNIV OF TECH