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Method for identifying Dalbergia odorifera and Dalbergia retusa

A technology of austenitic yellow and Dalbergia, which is applied in the field of wood detection, can solve the problems of wood rays, intrusions, and auxiliary parenchyma that are similar or difficult to distinguish, and achieve the effect of scientific and easy implementation and maintenance of market order

Pending Publication Date: 2020-11-17
SHANGHAI INST OF QUALITY INSPECTION & TECHN RES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The present invention provides a method for identification of Dalbergia austeni and Dalbergia dentina, to solve the similar or similar difficulties in the type and arrangement of tube holes, wood rays, intrusion, auxiliary parenchyma, etc. issues of distinction

Method used

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  • Method for identifying Dalbergia odorifera and Dalbergia retusa
  • Method for identifying Dalbergia odorifera and Dalbergia retusa
  • Method for identifying Dalbergia odorifera and Dalbergia retusa

Examples

Experimental program
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Embodiment 1

[0029] (1) Take a sample to be tested, clean the surface of the sample, use a knife to scrape the heartwood into thin slices, the thickness of each thin slice is not more than 1mm, and the weight is about 0.005 ~ 0.015g. Accurately weigh 5 samples, each 0.25 g; (2) respectively immerse each sample in 5ml of dichloromethane solvent, and put it into an ultrasonic wave for extraction for 60min, and the extraction temperature is 20°C; (3) respectively adopt 0.45 micron organic microporous filter to filter to obtain 5 parts of extracts, the extracts are all orange-red; (4) respectively adopt gas chromatography-mass spectrometry to analyze the extracts, wherein, the test conditions of gas chromatography are as follows: the chromatographic column is Agilent DB-5MS [30m × 0.25mm ×0.1μm]; carrier gas: helium; carrier gas flow rate: 1mL / min; column temperature: using programmed temperature rise, the initial temperature is 80°C and kept for 0.5min, then programmed at a rate of 20.0°C / min ...

Embodiment 2

[0034] (1) Take a sample to be tested, clean the surface of the sample, use a knife to scrape the heartwood into thin slices, the thickness of each thin slice is not more than 1mm, and the weight is about 0.005 ~ 0.015g. Accurately weigh 3 samples, each 0.30 g; (2) respectively immerse each sample in 10ml of dichloromethane solvent, and put it into an ultrasonic wave to extract for 60min, and the extraction temperature is 15°C; (3) respectively adopt 0.45 micron organic microporous filter to filter to obtain 3 parts of extracts, the extracts are all orange-red; (4) respectively adopt gas chromatography-mass spectrometry to analyze the extracts, wherein, the test conditions of gas chromatography are as follows: the chromatographic column is Agilent DB-5MS [30m × 0.25mm ×0.1μm]; carrier gas: helium; carrier gas flow rate: 1mL / min; column temperature: using programmed temperature rise, the initial temperature is 80°C and kept for 0.5min, then programmed at a rate of 20.0°C / min to ...

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Abstract

The method for identifying Dalbergia odorifera and Dalbergia retusa comprises the following steps: (1) scraping 1-5 parts of slices from the heartwood of to-be-detected wood as a sample, and accurately weighing the mass of the sample; (2) respectively immersing each part of the sample into a dichloromethane solvent, and then carrying out ultrasonic extraction for more than 30 minutes; (3) performing filtering by adopting an organic microporous filter membrane to obtain an extracting solution; and (4) respectively analyzing the extract liquor by adopting a gas chromatography-mass spectrometry method, and judging whether the to-be-detected wood is Dalbergia odorifera or Dalbergia retusa according to the characteristic peaks of the organic matters. According to the method, wood identificationand identification of Dalbergia odorifera and Dalbergia retusa are conducted through the GC-MS analysis technology, the wood is identified from the chemical components of the wood, the influence of geographical areas, climate, soil and the like on the wood can be effectively reduced, and the method is scientific, easy to implement, objective and effective.

Description

technical field [0001] The invention relates to the field of wood detection, in particular to a method for identifying Dalbergia austeni and Dalbergia dentina. Background technique [0002] Solid wood furniture is deeply loved by Guangfa consumers because of its beautiful patterns, environmental protection and no peculiar smell, and the design of furniture shows traditional cultural connotations. In the 21st century, due to the rapid development of the domestic economy, more and more consumers choose mahogany furniture. However, due to the long growth cycle of mahogany furniture and excessive felling of wood, there are fewer and fewer domestic rare tree species, and most of them are imported wood. . Dalbergia retusa (Latin name Dalbergia retusa, trade name cocobollo) and Dalbergia austeni (Latin name Dalbergia oliveri Gamble, trade name Burmatulip wood, chingchan, tamalan) both belong to the genus of imported wood Dalbergia. [0003] Dalbergia cocoa, commonly known as Coco...

Claims

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Application Information

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IPC IPC(8): G01N30/88
CPCG01N30/88
Inventor 吴静霞陈光明
Owner SHANGHAI INST OF QUALITY INSPECTION & TECHN RES
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