Method for identifying fluorescence of wood

Abstract

The invention relates to a method for identifying fluorescence of wood. The method comprises the following steps: A. grinding the wood to be determined into wood flour and extracting a fluorescent substance in different polar solvents to obtain different solutions; B. primarily determining the strongest emission spectra of the solution to obtain the primary strongest emission wavelength; C. determining the strongest excitation spectrum of the solution, and a solvent with the unique characteristic peak, and obtaining the accurate strongest excitation wavelength and fluorescence intensity thereof; D. accurately determining the strongest emission spectrum of the solution, and obtaining the accurate strongest emission wavelength and fluorescence intensity thereof; E. comparing the obtained strongest emission wavelength and fluorescence intensity thereof with a spectrum of the known wood to obtain the specific tree species of the wood to be determined. The identifying method provided by the invention has uniformity and reproducibility, and can be widely used.

Description

[0001] [technical field] [0002] The invention relates to a method for identifying wood types by means of measuring fluorescent substances of wood, in particular to a method for identifying wood fluorescence. [0003] [Background technique] [0004] With the development of wood scientific identification technology, there are many ways to identify wood. In addition to the most commonly used wood anatomical structure identification methods, there are physical and chemical identification, gene expression identification, near-infrared spectroscopy, and the use of wood stress waves to identify certain specific woods. [0005] At present, the research on wood extracts at home and abroad is mainly in the aspects of wood extract components, wood extracts and wood industry utilization, and the impact of environmental conditions on wood extracts. Wood extracts are used for wood classification. Studies have been reported at home and abroad, but the number is very small. For example: we...

AI Technical Summary

Problems solved by technology

There is also a big gap in price between the woods that are also classified as mahogany, but because many of them are woods of the same family or genus, they have a high degree of similarity in botanical structural characteristics, and it is difficult to distinguish them with existing identification methods.

Therefore, some unscrupulous merchants use inferior mahogany or other woods as high-priced mahogany to obtain huge illegal income, which leads to many contradictions and disputes.

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