How do you tell apart from agarwood 30

Agarwood: It is an agarwood tree. Dead or alive, the agarwood tree. If there is no incense, no matter how big or small, it is called an agarwood tree.

Agarwood: The part of the agarwood tree that has agarwood oil is called agarwood. It doesn't matter if it's just fragrant, or it's been around for many years.

Regardless of whether it is alive or dead, the part that contains agarwood oil is called agarwood. It's just that when the tree is alive, it has a chance to form and get better and better. When a tree dies, it loses its environment for further evolution and moves on to purification.

When the tree dies, the wood of the tree will rot, but agarwood is oil, and it will not rot. This is agarwood.

I'm in""Longmu Pavilion" has learned a few tricks to distinguish between real and fake agarwood, and I hope to help you.

Method 1: Blister.

True agarwood is not afraid of water, what goes in and what comes out, the pores of real agarwood will reopen when it enters the water, and the fragrance becomes stronger.

After the fake agarwood enters the water, the general color will change, and the obvious expansion phenomenon will occur when the compression is like water for one hour, and the fragrance will become lighter after the fake agarwood enters the water.

Method 2: Look at the pores and oil lines.

Real agarwood will have clear pores or oil lines.

False agarwood is generally smooth or does not have visible pores.

This question does not apply downstairs. First, agarwood belongs to agarwood. It's not the so-called true or false.

Agarwood is a mixture of oil and wood. Without any grease is white wood. Contains grease is extraordinarily entry-level, submersible grade, and so on.

Second, you know how to distinguish fake agarwood, and you will know the characteristics of agarwood, such as texture and fragrance, and you will know if you want to play more.

1. Chemical identification method: take the ** agarwood alcohol soluble extract for trace sublimation to obtain a yellow-brown oil with a strong aroma. Add 1 drop of hydrochloric acid and a small amount of vanillin granules to the oil, and then add one to two drops of ethanol to gradually show the cherry red grill, and the color will deepen after placement, and there will be no counterfeit product.

2. Spectral identification method: the ultraviolet absorption spectrum of imported agarwood only has an absorption peak at 206 nanometers, while the imported non-agarwood and domestic agarwood have three absorption peaks respectively, but the information of the last two absorption peaks is small; From the first-order derivative spectrum, domestic agarwood has a large characteristic Chundouyan peak at 267 nanometers, imported non-agarwood has a large absorption peak at 242 nanometers, and imported agarwood has no absorption peak in this range; The counterfeit agarwood has no absorption peak above. Different spectra indicate that the composition is different and the quality is different.

3. Chromatography identification method: 95% ethanol extract of the sample was taken, and the brown-yellow volatile oil was obtained according to the microsublimation method, which was dissolved in acetone on the silica gel thin layer plate, and nine to one was used for phenylacetone. The results of inspection under the 365nm ultraviolet lamp showed that ** showed four spots, while there were no counterfeits; With 5% vanilla aldehyde concentrated sulfuric acid solution, ** is eight spots, and there is no fake agarwood.