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Distillate spirit brand identification method based on support vector machine and time-of-flight mass spectrometry

A time-of-flight mass spectrometry and support vector machine technology, applied in the field of liquor brand identification, can solve problems such as difficult to achieve fast high-throughput, slow analysis speed, and inability to conduct on-site detection, and achieve fast scanning speed, accurate identification, and high sensitivity. Effect

Active Publication Date: 2015-06-03
江苏易谱恒科技有限公司
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Problems solved by technology

[0003] The existing analysis and detection methods for liquor brand identification mainly focus on detection methods such as chromatography and spectroscopy. Although the authenticity of liquor brands can be identified to a certain extent, it is difficult to achieve fast, high-throughput and high-throughput due to its slow analysis speed. The inability to conduct on-site testing and other determinations limits the control of the authenticity of liquor brands

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  • Distillate spirit brand identification method based on support vector machine and time-of-flight mass spectrometry
  • Distillate spirit brand identification method based on support vector machine and time-of-flight mass spectrometry
  • Distillate spirit brand identification method based on support vector machine and time-of-flight mass spectrometry

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Embodiment 1

[0050] Liquor brand identification method based on support vector machine and time-of-flight mass spectrometry, including spectral information collection of time-of-flight mass spectrometry, spectral information extraction and construction of SVM classifier;

[0051] (1) The collection of spectrogram information of time-of-flight mass spectrometry comprises the following steps:

[0052] Put 5mL of Moutai, Wuliangye, Jiannanguo, Tianzhilan or Mengzhilan liquor samples into 15mL injection bottles respectively, with a headspace volume of 10ml, and use atmospheric pressure capillary tubes at room temperature to directly sample the headspace for analysis. The main parameters Conditions: Ionization method: single photon ionization; vacuum to about 0.8X10-3Pa-1.8X10-3Pa; ionization zone pressure 7.0Pa; acceleration zone voltage 2650V, 250 micron capillary direct sample injection, no heating measures; each TOF The mass spectrum full spectrum signal accumulation time is 15 seconds, and...

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Abstract

According to the present invention, a time-of-flight mass spectrometry analysis technology is adopted to determine a series of distillate spirits with different types, a support vector machine (SVM) method is adopted to establish a classification model, and experiment results show that the distillate spirit brand classification and identification method has characteristics of high classification accuracy, high identification rate, rapid detection, good performance, and wide application range.

Description

technical field [0001] The invention relates to a liquor brand identification method, in particular to a liquor brand rapid identification method combining pattern recognition technology and time-of-flight mass spectrometry technology. Background technique [0002] Liquor is a unique traditional drink in my country with a long history and a long history. In Chinese traditional culture and Chinese people's psychological inheritance, liquor has a unique position. Most of Chinese liquor is brewed from grain. Its nutrient content is high, and it is easily digested and absorbed by the human body. As a special commodity, wine has added a lot of rich colors to people's lives. Liquor is an indispensable consumable for the public in China's social life, and it has produced huge production and social benefits at the same time. Due to the temptation of huge profits and the loss of social morality, some manufacturers and sellers bring fake and shoddy products into the market, causin...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N27/64
Inventor 王国祥刘军王海燕姜久英
Owner 江苏易谱恒科技有限公司