Intelligent chemical analysis system for liquid sample

A technology for intelligent analysis and liquid sample, applied in the field of intelligent chemical analysis system, it can solve the problems of complex back-end data processing method, weak response of non-redox component system, difficulty in extracting useful information, etc. The effect of rich volume and strong response signal

Inactive Publication Date: 2008-11-26
ZHEJIANG GONGSHANG UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this electronic tongue system also has disadvantages such as relatively weak response to non-redox compo

Method used

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  • Intelligent chemical analysis system for liquid sample
  • Intelligent chemical analysis system for liquid sample
  • Intelligent chemical analysis system for liquid sample

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Application to wine detection: Select six different manufacturers, the same Cabernet Sauvignon dry red wine as wine samples to verify the discrimination and identification effect of the intelligent chemical sensory system, each manufacturer selects 3 samples.

[0027] detection devices such as figure 1 As shown, the sensor array 1 is immersed in a liquid sample. The working electrode 4 is a gold electrode, a silver electrode and a palladium electrode; the auxiliary electrode 6 is a 1×5mm platinum column electrode; the reference electrode 5 is an Ag / AgCl electrode. The current is measured by a microcontroller connected through the interface. A personal computer is used to control the system, such as timing of pulse start, measuring response current and storing data. The host computer of the signal excitation acquisition device integrated in the software part selects the voltage, pulse frequency and pulse interval time required by the signal excitation acquisition devic...

Embodiment 2

[0033] The application of distinguishing and identifying liquors from different manufacturers and different flavors: Select liquors from six different manufacturers and different flavors as the detection and analysis objects.

[0034] detection devices such as figure 1 As shown, the sensor array 1 is immersed in a liquid sample. The working electrode 4 is a platinum electrode and a gold electrode; the auxiliary electrode 6 is a 1×5 mm platinum column electrode; the reference electrode 5 is an Ag / AgCl electrode. The current is measured by a microcontroller connected through the interface. A personal computer is used to control the system, such as timing of pulse start, measuring response current and storing data. The host computer of the signal excitation acquisition device integrated in the software part selects the voltage, pulse frequency and pulse interval time required by the signal excitation acquisition device, controls the sampling time, and defines the data points stor...

Embodiment 3

[0039] The application of distinguishing and identifying "Longjing tea" of different quality and quality: 7 kinds of Longjing tea from different regions are selected as the analysis and testing objects.

[0040] detection devices such as figure 1 As shown, the sensor array 1 is immersed in a liquid sample. The working electrode 4 is a palladium electrode, a gold electrode, a nickel electrode and a titanium electrode; the auxiliary electrode 6 is a 1×5 mm platinum column electrode; the reference electrode 5 is an Ag / AgCl electrode. The current is measured by a microcontroller connected through the interface. A personal computer is used to control the system, such as timing of pulse start, measuring response current and storing data. The host computer of the signal excitation acquisition device integrated in the software part selects the voltage, pulse frequency and pulse interval time required by the signal excitation acquisition device, controls the sampling time, and define...

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PUM

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Abstract

The invention relates to a detector generally known as an electronic tongue and provides an intelligent chemical analysis system which is based on electrochemical detection and used for telling the differences of the global properties of liquid samples. The present electronic tongue has the defects of weak response, complex processing method of back-end data, relatively difficult extraction of useful information, etc. The technical proposal of the invention comprises a sensor array, a signal motivation and collection device and an intelligent analysis unit; wherein, the sensor array consists of a working electrode, an auxiliary electrode and a reference electrode; the signal motivation and collection device which comprises a single chip microcomputer and a constant potential rectifier adds the predetermined excitation pulse arrays to the auxiliary electrode and at the same time collects the response signals generated by the working electrode; the intelligent analysis unit comprises a host computer of the signal motivation and collection device and the intelligent data analysis software. The detector can realize the nondestructive, timely and fast intelligent detection of global properties of the liquid samples and the overall quality characteristic analysis and is particularly suitable for the detection of quality control in the production processes of enterprises.

Description

technical field [0001] The present invention relates to a detector commonly referred to as an electronic tongue, and more particularly, to an intelligent chemical analysis system based on electrochemical detection for distinguishing differences in the properties of liquid samples as a whole. Background technique [0002] The artificial intelligence taste system simulates the mechanism of the organism's sense of taste. It senses different chemical substances through the sensor array (equivalent to the tongue in the biological system), and collects various signal information and inputs it into the computer. The computer replaces the brain function in the biological system, and analyzes and processes it through software to distinguish and identify the overall characteristics of substances of different properties. Each independent sensor in the sensor array has an interactive sensitive effect. It does not only sense one chemical substance, but a type of chemical substance. While...

Claims

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Application Information

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IPC IPC(8): G01N27/26G01N27/48
Inventor 田师一邓少平王晓萍詹舒越
Owner ZHEJIANG GONGSHANG UNIVERSITY
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