Method for detecting tobacco leaf chemical ingredient 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 device through optical means, which can solve the problems of high cost and long cycle, and achieve fast and accurate analysis, and the method is simple and easy , the effect of fast technical data support

Active Publication Date: 2006-09-06
CHINA TOBACCO SHANDONG IND
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  • Summary
  • 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 method that can effectively analyze the chemical components of the tobacco leaves using near-infrared light. Method for Detecting Chemical Components of Tobacco Leaves

Method used

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] First, the whole tobacco leaf is laid flat, and the near-infrared instrument takes three triangular distribution points on the upper part of the tobacco leaf, three triangular distribution points on the lower part of the tobacco leaf, and five diamond-shaped points on the middle part of the tobacco leaf; the near-infrared instrument will The components of the collected tobacco leaves include nicotine, total sugar, reducing sugar, total nitrogen, volatile alkali, potassium and chlorine to form their own near-infrared spectra; the near-infrared spectra of each component were established with the components of tobacco leaves detected by conventional techniques Mathematical model, forming a mathematical model for near-infrared analysis of tobacco leaves, and storing it in the memory; when purchasing on-site, use a near-infrared instrument to divide the flattened tobacco leaf into three parts, and the upper part is taken as a triangle with three points , the lower part is tak...

Embodiment 2

[0032] In this embodiment, when tobacco leaves are taken, as figure 2 As shown, sampling is carried out in the manner of taking three points of a triangle at the upper part, three points of a triangle at the lower part, and four vertices of a rhombus at the middle part, and the other methods are the same as in the first embodiment.

Embodiment 3

[0034] In this embodiment, when tobacco leaves are taken, as image 3 As shown, sampling is performed in the manner of taking three triangular points at the upper part, three triangular points at the lower part, and arbitrarily taking three points at the middle part, and the other methods are the same as in Embodiment 1.

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Abstract

To overcome defects in prior art, the disclosed method comprises: a. expanding the crushed tobacco; b. detecting with selected at least two 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 on-site purchase to take comparison with former model and determine tobacco leave 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 leaves 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 ALPKEM automatic analyzer is mostly used for the detection of chemical components in tobacco leaves, which is slow and expensive, and it is difficult to meet the needs of rapid analysis. [0003] Near-infrared (NIRS) light refers to electromagnetic waves between visible light and mid-infrared, wi...

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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