Method for detecting chemical ingredient of tobacco adopting near infrared light

A technology of chemical composition and near-infrared light, which is applied in the direction of material analysis, color/spectral characteristic measurement, and measuring devices through optical means, can solve the problems of long cycle and high cost, achieve fast and accurate analysis, and the method is simple and easy to implement. The effect of fast technical data support

Active Publication Date: 2006-09-06
CHINA TOBACCO SHANDONG IND
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problems of high cost and long period in the analysis of the chemical components of the existing tobacco leaves, and to provide a simple, fast and convenient, and effective analysis of the chemical components of the tobacco leaves using a near-infrared light detection sheet Smoke Chemical Composition Method

Method used

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  • Method for detecting chemical ingredient of tobacco adopting near infrared light
  • Method for detecting chemical ingredient of tobacco adopting near infrared light
  • Method for detecting chemical ingredient of tobacco adopting near infrared light

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0019] First of all, the broken sheet tobacco is spread flat, and the near-infrared instrument is used to take samples in the sheet tobacco according to the five-point method, that is, one point is taken at each of the four fixed points of a rectangle and its center position; Components include nicotine, total sugar, reducing sugar, total nitrogen, volatile alkali, potassium and chlorine to form their respective near-infrared spectra; a mathematical model is established between the near-infrared spectra of each component and the components of tobacco leaves detected by conventional techniques to form a sheet smoke near-infrared analysis mathematical model, and store it in the memory; in the warehouse and before production, use the near-infrared instrument to sample the flattened tobacco according to the five-point method, such as figure 1 As shown, the quality of the tobacco can be determined by comparing the detected near-infrared spectrum with the near-infrared analysis mathe...

Embodiment 2

[0021] After paving the broken laminae flat, sample by serpentine method, there are at least three collection points during sampling, all the other steps are identical with embodiment one.

[0022] In the steps of the present invention, the near-infrared instrument is used twice to detect the laminar tobacco. The first time is to set up a mathematical model for the near-infrared analysis of the laminar tobacco. After setting up the mathematical model, it can provide a benchmark for detection in the future; the second time is in the actual Sampling was carried out on laminar cigarettes during detection. There is no relationship between the number of sampling points during these two tests, that is, the five-point method or the serpentine method can be used for the first time, and the number of sampling points should not be less than three when the serpentine method is used; the second time is between the five-point method and the serpentine method. For any one of the serpentine ...

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Abstract

To overcome defects in prior art, the disclosed method comprises: a. expanding the crushed tobacco; b. detecting with selected points with near IR device to obtain the near IR chart; c. building different maths models according to obtained chart and conventional chemical analysis to obtain and store the analysis maths model into a memory; d. detecting the tobacco from warehouse to take comparison with former model and determine piece tobacco quality.

Description

technical field [0001] The invention relates to a method for detecting chemical components of tobacco leaves, in particular to a method for detecting chemical components of tobacco sheets by using near-infrared light. Background technique [0002] As we all know, the stable control of cigarette quality is the focus of tobacco enterprises. Tobacco leaves are an important factor affecting the quality and stability of cigarette products. Practice has proved that increasing the frequency and analysis of chemical components in tobacco leaves and improving the stability of chemical components in tobacco leaves are effective ways to ensure stable quality of tobacco leaves. At present, the tobacco leaves used in industrial production are all in the form of laminar tobacco before entering the workshop, and the chemical composition of laminar tobacco is mostly detected by ALPKEM automatic analyzer, which is slow and expensive, and it is difficult to meet the needs of rapid analysis. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/35G01N21/3563G01N21/359
Inventor 董小卫厉昌坤冷萃述耿宝峰周显升蒋海岩廖旭东李成富郗继忠郝廷亮贾玉国
Owner CHINA TOBACCO SHANDONG IND
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