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Vacuum infrared spectrum-based tobacco shred whole quality characteristic analysis method

A technology of infrared spectroscopy and quality characteristics, applied in the field of analysis of overall quality characteristics of cut tobacco based on vacuum infrared spectroscopy, can solve problems such as the evaluation of the overall characteristics of volatile gas components in cigarette shreds, and achieve rapid evaluation process, enhanced sensitivity, and high sensitivity Effect

Active Publication Date: 2018-11-13
TIANJIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the above-mentioned problem that it is difficult to directly evaluate the overall characteristics of the volatile gas components of cigarette shreds, the present invention proposes a method for analyzing the overall quality characteristics of cigarettes based on vacuum infrared spectroscopy

Method used

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  • Vacuum infrared spectrum-based tobacco shred whole quality characteristic analysis method
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  • Vacuum infrared spectrum-based tobacco shred whole quality characteristic analysis method

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Experimental program
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Embodiment Construction

[0020] The present invention will be further described below in conjunction with embodiment.

[0021] 1. Reagents and materials:

[0022] Unless otherwise specified, all reagents used were of analytical grade.

[0023] Nitrogen: N 2 (purity≥99.99%).

[0024] 100mL medical glass syringe (Tianjin Tianbo Instrument Co., Ltd.)

[0025] 2. Instruments and equipment:

[0026] 2.1 Vacuum Fourier Transform Infrared Spectrometer (Vertex 80V German Bruker Company)

[0027] 2.1.1 Signal-to-noise ratio: 55000:1.

[0028] 2.1.2 Resolution: 0.06cm -1 .

[0029] 2.1.3 Wavenumber range: 50000-5cm -1 .

[0030] 2.2 Tube mill control high-speed grinding, powder machine (Germany IKA company)

[0031] 2.3 D60C Mechanical Pump (Leybold Company, Germany)

[0032] 2.4 100mL-250mL ZNHW type intelligent electric heating mantle (Shanghai Yuezhong Instrument Equipment Co., Ltd.)

[0033] The purpose of the experiment: To verify the application potential of high-sensitivity infrared gas spect...

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Abstract

The invention relates to a vacuum infrared spectrum-based tobacco shred whole quality characteristic analysis method. The vacuum infrared spectrum-based tobacco shred whole quality characteristic analysis method comprises the following steps: extracting tobacco shred or tobacco powder of typical finished cigarette samples in all samples; acquiring vacuum mid-infrared spectrum information of the samples; performing data analysis: computing a main principle component score matrix of a preprocessed signal by adopting a principal component analysis method, wherein the main principle component score matrix is a final value of a principal component variable of an infrared spectrum, and the main principle component score matrix of the infrared spectrum is used as a whole characteristic of volatile components in the cigarette tobacco shred in the samples, i.e., the whole characteristic of the cigarette quality; surveying a distribution situation of a PCA (Principal Component Analysis) score matrix of same tobacco shred and different samples, and illustrating that the quality stability of the samples in the brand is better if a distribution range is smaller.

Description

technical field [0001] The invention relates to a method for analyzing the overall quality characteristics of shredded tobacco based on vacuum infrared spectroscopy, which is used for accurately evaluating the style and characteristics of volatile substances in shredded tobacco. Background technique [0002] Cigarette is a consumer product that can feel and taste the aroma and taste of smoke through human sensory organs. Its use value is mainly reflected in the effect of mainstream smoke on consumers' sensory organs. Therefore, the quality of a cigarette is determined by its sensory quality, which largely depends on the volatile gas components of cut tobacco. Therefore, only by studying the overall characteristics of the volatile components in shredded tobacco and establishing a comprehensive evaluation method for mainstream smoke quality based on this, can it reflect the smoking performance and technical characteristics of cigarette products more truly and comprehensively, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/3563
CPCG01N21/3563
Inventor 秦玉华陈达李超曾翔
Owner TIANJIN UNIV