Method for establishing fingerprint spectrum to identify Phoebe zhennan based on GC-MS technology

A fingerprint and GC-MS technology, which is applied in the field of wood identification, can solve the problems of high error rate in identification of similar wood species, sluggish golden nan, and difficulty in distinguishing, so as to achieve accurate and reliable detection results, save experimental time, and high detection sensitivity Effect
CN106290656AInactive Publication Date: 2017-01-04SICHUAN AGRI UNIV
9 Cites 3 Cited by

Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
SICHUAN AGRI UNIV
Publication Date
2017-01-04
Estimated Expiration
Not applicable · inactive patent

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention discloses a method for establishing a fingerprint spectrum to identify Phoebe zhennan based on the GC-MS technology. The method comprises the steps that firstly, essential gas or essential oil of a sample to be detected is extracted; the essential gas is subjected to GC-MS analysis, or the essential oil is diluted with diethyl ether and then subjected to GC-MS analysis, and a total ion current map is obtained; the relative content of all components is calculated through a peak area normalization method under the condition that chromatographic conditions and integral parameters are identical, corresponding characteristic peaks are found, the relative peak area data of the sample to be detected and a Phoebe zhennan control sample feature compound is input into a formula to calculate the correlation coefficient of the sample to be detected and the Phoebe zhennan control sample feature compound; finally, whether the sample to be detected is the Phoebe zhennan or not is judged according to Phoebe zhennan wood species identification indexes. The Phoebe zhennan fingerprint spectrum is established through the GC-MS technology to distinguish the Phoebe zhennan and wood species prone to be mixed, detecting efficiency is high, detecting sensitivity is high, loss of objects to be detected is small, and the detecting result is scientific, objective, accurate and reliable.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The application belongs to the technical field of wood identification, and in particular relates to a method for identifying Phoebe zhennan by establishing fingerprints based on GC-MS technology. Background technique

[0002] Since 2008, golden nanmu has been widely concerned and enthusiastically sought after, and its price has been soaring all the way, especially after 2010, the growth rate was extremely fast, and in 2013, the price was close to that of Hainan huanghuali, the most valuable wood. However, the current identification and identification of golden nanmu species in the industry is rather confusing. According to GB / T16734-1997 "Names of Main Timbers in China", Phoebe refers to 8 species of Phoebe Nees in the family Lauraceae, but the industry believes that the most authentic golden nanmu refers to Phoebe zhennan ) tree species, its market price is much higher than that of other Phoebe tree species, and Zhennan is a second-class protected pla...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More