Intelligent chemical analysis system for distinguishing detection of weak electrolyte sample and method therefor

A weak electrolyte and intelligent technology, applied in the field of intelligent chemical analysis systems, can solve the problems of difficulty in distinguishing and detecting weak electrolyte solutions, and achieve the effects of small impact, wide application range and good detection effect.

Active Publication Date: 2013-08-28
ZHEJIANG GONGSHANG UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problem of difficulty in distinguishing and detecting weak electrolyte solutions, the present invention provides an intelligent chemical analysis system and method for distinguishing and detecting weak electrolyte samples, which has the advantages of good detection effect, wide application range, and little influence on the properties of the solution.

Method used

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  • Intelligent chemical analysis system for distinguishing detection of weak electrolyte sample and method therefor
  • Intelligent chemical analysis system for distinguishing detection of weak electrolyte sample and method therefor
  • Intelligent chemical analysis system for distinguishing detection of weak electrolyte sample and method therefor

Examples

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Embodiment 1

[0026] Example 1: Comparative test of the detection of 4 kinds of carbohydrates (fructose, glucose, maltose and lactose, all with a solution concentration of 0.01 mol / ) using the system and method of the present invention and the original electrochemical detection method.

[0027] One, system and method of the present invention:

[0028] Such as figure 1 The shown intelligent chemical analysis system for the differential detection of weak electrolyte samples is mainly composed of an embedded module, a potentiostat, and a three-electrode sensor; among them,

[0029] The hardware platform of the embedded module is Intel's 32-bit XScale PXA27X processor chip, the main frequency is 404MHz, equipped with 512M memory, including PCI, 232 serial port, USB and other expansion interfaces, data intelligent analysis software, etc. The software system of the embedded module adopts the Linux operating system.

[0030] The potentiostat is composed of operational amplifier chips U1-U6, res...

Embodiment 2

[0045] Example 2: Using the system and method of the present invention and the original electrochemical detection method, a contrastive test was carried out to distinguish and detect pure water and mineral water produced by different manufacturers.

[0046] In the intelligent chemical analysis system and method of the present invention, the original electrochemical method is the same as that in Example 1.

[0047] The main component scatter diagrams of 5 kinds of commercially available purified water and mineral water (Coca-Cola purified water, Wahaha purified water, Danwei bamboo charcoal water, Yibao purified water, and Master Kong mineral water) obtained by adopting the system and method of the present invention are as follows Figure 6A shown.

[0048] The scatter diagram of the main components obtained by the original potentiostatic electrochemical method is as follows: Figure 6B shown.

[0049] It can be found that compared with the original electrochemical method, th...

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Abstract

The invention discloses an intelligent chemical analysis system for distinguishing detection of a weak electrolyte sample and a method therefor. The intelligent chemical analysis system is characterized by comprising an embedded module, a potentiostat and a three-electrode sensor. The method comprises that the self-developed potentiostat combines with the embedded module; a two-step excitation acquisition method is adopted; through the first excitation acquisition process, solution resistance is automatically fitted and an electrical signal produced by the solution resistance is added to a secondary excitation signal; and through the combination of the second acquisition process, real-time Fourier transform and principal component analysis, an optimized weak electrolyte solution whole-distinguishing graph is obtained. The method has good detection effects, a wide application scope and low influence on solution properties.

Description

technical field [0001] The invention relates to an intelligent chemical analysis system and method for distinguishing and detecting weak electrolyte samples, which can provide an overall distinguishing diagram of weak electrolyte solution samples. Background technique [0002] Nowadays, electrochemical methods have been more and more used for the overall comprehensive evaluation of liquid samples, and great breakthroughs have been made in the identification of wine, tea drinks, fruit juice, and milk samples. [0003] The Chinese patent 200710068869X applied by the applicant of the present invention in 2007 discloses an intelligent chemical analysis system for liquid samples, which uses multi-frequency pulse voltammetry as the signal excitation acquisition mode, which has a stronger response signal and less signal noise than the prior art. The higher the ratio, the richer the amount of information. [0004] However, the electrochemical method also has certain defects, and th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N27/48
Inventor 田师一邓少平胡晓辉
Owner ZHEJIANG GONGSHANG UNIVERSITY
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