Thin-layer chromatographic identification method for inonotus sanghuang
A thin-layer chromatography and identification method technology, applied in the direction of measuring devices, instruments, scientific instruments, etc., can solve the problems of wrong use of Phellinus linteus, damage to research and development of food, etc.
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Embodiment 1
[0025] Example 1 Identification of Phellinus Phellinus by Thin Layer Chromatography
[0026] Accurately weigh 2 g of the powder with a weighing balance, add 50 mL of absolute ethanol, heat to reflux, filter after 3 hours, then evaporate the filtrate to dryness, add 2 mL of methanol to the residue to fully dissolve the Phellinus residue, extract twice with ethyl acetate, 30mL each time. Evaporate the extract to dryness, add methanol to dissolve it, and use this as a sample. According to the test of thin-layer chromatography (Appendix VIB of "Chinese Pharmacopoeia" 2010 Edition), draw 1, 3, and 5 μL of the above solutions and spot them on the same thin plate, with the same developing agent, first develop, then take out, then dry, and place Check under ultraviolet light (365nm), and finally take pictures. The influence of different sample volumes on thin-layer chromatography was investigated, and the results showed that although the sample volumes of 1 μL and 3 μL could run cle...
Embodiment 2
[0028] Investigate the influence of reflux extraction of 100% ethanol and 70% ethanol solution on thin-layer chromatography and the stability of color development, other steps are the same as in Example 1. The result is as figure 2 shown. It can be seen from the figure that the thin layer of the extract with 100% ethanol is better. The application of 70% ethanol reflux to extract the products of the two samples will cause the loss of some products in the sample, so the method of 100% ethanol reflux extraction is used to process the samples.
Embodiment 3
[0030] Investigating the influence of thin plates made of different materials on thin-layer chromatography is the same in other respects, which are carried out in silica gel G plates and polyamide thin plates respectively, and other steps are the same as in Example 1. see Figure 4 , 5 . As can be seen from the figure, Figure 5 The samples in the silica gel G plate in can show obvious bands, while Figure 4 The components of the polyamide thin plate samples cannot be separated well, so the experiment chooses the silica gel G plate as the experimental plate.
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