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A liquor vintage recognition method based on a fusion technology of ion mobility spectrometry/ mass spectrometry/ Raman spectroscopy

A technology of ion mobility spectrometry and Raman spectroscopy, which is applied in the field of liquor age identification based on ion mobility spectrometry/mass spectrometry/Raman spectroscopy fusion technology, can solve problems such as complex components and difficulty in adapting to the overall evaluation of liquor

Active Publication Date: 2013-09-11
JIANGSU PROVINCE INST OF QUALITY & SAFETY ENG
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AI Technical Summary

Problems solved by technology

[0004] Since liquor is a typical representative of a complex mixture system, not only its components are complex, but its quality is often determined by the overall characteristics of its trace components. It is measured by the characteristics of liquor, so it is difficult to adapt to the actual needs of the overall evaluation of liquor

Method used

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  • A liquor vintage recognition method based on a fusion technology of ion mobility spectrometry/ mass spectrometry/ Raman spectroscopy
  • A liquor vintage recognition method based on a fusion technology of ion mobility spectrometry/ mass spectrometry/ Raman spectroscopy
  • A liquor vintage recognition method based on a fusion technology of ion mobility spectrometry/ mass spectrometry/ Raman spectroscopy

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Embodiment 1

[0050] The identification and identification method of liquor age based on ion mobility spectrometry / mass spectrometry / Raman spectrometry fusion technology comprises the following steps:

[0051] (1) Spectral data acquisition includes the following methods:

[0052] The Raman spectrum collection method is as follows: 40 Gujing Gong 16-year wine samples and 40 Gujing Gong 26-year wine samples were drawn with a capillary tube, added to the injection port, and the spectrum was collected under the condition of red light 632.8nm;

[0053] The mass spectrogram collection method is as follows: 40 Gujinggong 16-year wine samples and 40 Gujing Gong 26-year-old wine samples were collected and analyzed by using an atmospheric pressure capillary tube directly in the headspace for analysis. The main parameters and conditions: ionization method: single photon ionization; ionization region The air pressure is 15.50Pa; the voltage in the acceleration zone is 2650V, and the accumulation time o...

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Abstract

The invention relates to a liquor vintage recognition method based on a fusion technology of ion mobility spectrometry / mass spectrometry / Raman spectroscopy. According to the present invention, by employing a pattern recognition technology, liquors of different specifications are determined through Raman spectroscopy, ion mobility spectrometry and mass spectrometry; a method of combining principal component analysis and linear discriminant analysis is used for feature extraction from Raman spectroscopy, ion mobility spectrometry and mass spectrometry data; a support vector machine method is adopted for establishing corresponding classification models; and experiment results show that a multi-spectral feature fusion algorithm has a very high classification accuracy and recognition rate for liquor vintage.

Description

technical field [0001] The invention relates to a method for identifying the age of liquor, in particular to a method for identifying the age of liquor based on the fusion technology of ion mobility spectrometry / mass spectrometry / Raman spectrum. Background technique [0002] In recent years, there has been a wave of "vintage" in my country's wine industry, and it is getting worse. In foreign countries, vintage wine is managed by strict management regulations and standards, but in my country, due to the lack of corresponding management regulations, some companies mark three-year-old wine as ten years or twenty years, and even newly established companies have launched twenty-year wines. , Thirty years of aging, this is not only the case with liquor, but also wine and rice wine companies have launched aged wine. With the deepening of consumers' understanding of vintage wine and the increase in domestic and foreign exchanges, the issue of vintage wine has attracted the attention...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/65G01N27/62G01N27/623
Inventor 王海燕王国祥姜久英刘军
Owner JIANGSU PROVINCE INST OF QUALITY & SAFETY ENG
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