Method for identifying cigarettes by using electrochemical fingerprints

Abstract

The invention relates to a method for identifying cigarettes by using electrochemical fingerprints. The method comprises the steps that cut tobacco of cigarettes of different varieties and cigarettes to be identified are taken respectively, dried and cooled, and then are stirred by adding an extracting solution inside and filtered, and the filtrate is collected, or the filtered cut tobacco is cooled and then ground into powders to obtain a standard sample and a sample to be identified; then an appropriate amount of the standard sample or the sample to be identified is taken and added into a B-Z oscillating system with a constant temperature, and the electrochemical fingerprints are obtained with a platinum electrode as the indicating electrode and a double salt bridge saturated calomel electrode or Ag / AgCl electrode as the reference electrode; and the characteristic parameters of the standard sample and the sample to be identified are extracted according to the electrochemical fingerprints, and the category or the genuine or whether the counterfeit of the sample to be identified is a counterfeit is identified by using such as pattern recognition methods as an artificial neural network. With the method of the invention, the treatment of samples is simple, the cost is low, the identification speed is fast, the operation is simple and convenient, and the results are accurate and reliable; and the method can be used for identifying the varieties and whether the cigarette is a counterfeit.

Description

technical field [0001] The invention relates to the field of tobacco identification, in particular to a method for identifying cigarettes using electrochemical fingerprints. Background technique [0002] my country is a big cigarette producing country with many brands, high output and large sales volume. Although the state has taken various measures to continuously strengthen the management of tobacco monopoly, there are still many counterfeit and shoddy products in the market, seriously damaging the interests of the state, enterprises and consumers. At present, cigarette authenticity identification, as an important technical support for the tobacco industry's fight against smuggling and counterfeiting and monopoly management, has become the main task faced by provincial tobacco quality inspection agencies. At present, the authenticity of cigarettes is firstly tested by sensory identification, but the identification is based on sensory methods such as observing the outer pa...

AI Technical Summary

Problems solved by technology

However, for cigarette products with a high degree of counterfeiting, these methods have certain limitations and are less reliable

In addition, in recent years, it has been reported that using infrared, chromatography or mass spectrometry to identify cigarettes, but infrared spectroscopy cannot reflect the characteristics of trace components, the reproducibility of sample preparation is poor, and special laboratories need to be equipped. Chromatography and mass spectrometry Complicated sample processing, expensive equipment, high use and maintenance costs, difficult operation, very complex spectra, only part of the components in cigarettes can be extracted for identification, and the reliability is poor

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