Electrochemical electronic tongue based on wide-bard pulse voltammetry

Abstract

This invention discloses an electrochemical electronic tongue based on broadband pulse voltammetry, composed of the electrode array, broadband pulse scanners and data analysis software. The electrode array is electrochemical electrode group that is made up with the reference electrode, auxiliary electrodes and multi - the work - a multi-channel electrode. The data analysis software is installed on the computer; electrode array will be placed analyte solution system. The broadband pulse scanner output pulse of a number of different scanning frequency signal, and then the signal is imposed on the analyte solution through parameter electrode of electrode array and working electrode. The circuit response signals produced by the solution return to broadband pulse scanner through secondary electrode. The invention can detect overall features of material and the differences between the material characteristics effectively, and has analytical speed, wide frequency range, access informative features.

Description

technical field [0001] The invention relates to an electrochemical analysis technique, in particular to an electrochemical electronic tongue based on broadband pulse voltammetry. Background technique [0002] The electrochemical analysis method is a method of collecting the response current signal of the solution while applying different electrical signals to the solution. Using the electrochemical analysis method, the characteristics of the solution can be detected by analyzing the relationship between the scanning signal and the response signal. [0003] At home and abroad, the main scanning methods used in electrochemical analysis methods are cyclic voltammetry and constant potential method. The problems of these methods are that the analysis speed is slow, the amount of information provided is not much, and the detection application field and scope are limited. limit. In recent years, researchers in Sweden, Russia and other countries have proposed a conventional pulse s...

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Problems solved by technology

[0003] At home and abroad, the main scanning methods used in electrochemical analysis methods are cyclic voltammetry and constant potential method. The problems of these methods are that the analysis speed is slow, the amount of information provided is not much, and the detection application field and scope are limited. limit

Since the frequency of the conventional pulse does not change, it is impossible to obtain more information reflecting the properties of the solution and the electrochemical properties of the solution components due to the interactive induction during the electrochemical reaction of the pulse potential when the frequency of the excitation pulse increases.

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