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Method for discriminating cigarette brands

A discrimination method and cigarette technology, which are applied in measurement devices, instruments, scientific instruments, etc., can solve the problems of heavy variable weight and small variable weight, and achieve the effect of avoiding the interference of systematic errors, reducing human errors, and avoiding human errors.

Inactive Publication Date: 2012-02-01
DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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Problems solved by technology

This overcomes the problem that in the traditional calculation of the similarity of traditional Chinese medicine fingerprints, the variable with a large logarithmic value has a large weight, and the variable with a small numerical value has a small weight.

Method used

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  • Method for discriminating cigarette brands
  • Method for discriminating cigarette brands
  • Method for discriminating cigarette brands

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Experimental program
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Embodiment

[0022] 1. Sample collection and initial treatment.

[0023] Three different authentic cigarettes were collected according to the cigarette sampling standard (GB / T 5606.1-2004), and at least ten production batches of each cigarette were used as modeling samples. The collected cigarettes were disassembled, the wrappers were removed, and placed at 22° C. and 60% relative humidity to equilibrate for at least 48 hours. The balanced shredded tobacco was put into a pulverizer for pulverization, passed through a 40-mesh sieve, and about 30 g of each sample was collected. Put the pulverized samples into double-layer ziplock plastic bags and store them in a refrigerator at 4°C. A 1g sample of tobacco dust was taken from each modeling sample and mixed as a quality control sample (QC sample). Assign a random number to all model group samples. Sample processing and instrumental analysis were performed in random numbered order. This allows for the subtraction of systematic errors introd...

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Abstract

The invention discloses a method for discriminating cigarette brands. The method comprises the following steps of carry out analysis of cigarette cut tobacco by a gas chromatography to obtain a cigarette cut tobacco chemical fingerprint outline, and establishing a cigarette brand discriminatory analysis model by a partial least square discriminatory analysis method. The method adopts a quality control sample to monitor a whole analysis flow so that obtained modeling data is real and reliable. The method adopts a blind sample test technology to carry out a strict test on the established cigarette brand discriminatory analysis model, wherein blind samples are different batches of qualified products produced out normally and properties of the blind samples are not known by testers before tests. A result of a blind sample test shows that a correct rate of cigarette brand discriminatory analysis model prediction reaches 83.33%.

Description

technical field [0001] The invention belongs to the field of cigarette chemical composition analysis. It relates to a cigarette brand discrimination method based on accelerated solvent extraction and gas chromatography technology. The method extracts the chemical components of cigarettes through accelerated solvent extraction, and uses gas chromatography for separation and analysis. Partial least squares discriminant analysis modeling is carried out by using the data collected by gas chromatography, so as to realize the discrimination of cigarette brands. Background technique [0002] In the production process of cigarettes, in order to form the style characteristics of cigarette brands, tobacco leaves of different varieties, different origins, and different years must be mixed according to a certain proportion, and finally form a certain brand of cigarettes through specific flavoring, feeding and fermentation processes. Cigarettes of different brands and grades will have ...

Claims

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Application Information

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IPC IPC(8): G01N30/02G01N30/06G01N30/88
Inventor 许国旺李勇路鑫李艳丽王晓琳
Owner DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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