Lei Pill identification
[differential]
(1) Microscopic identification of the product powder light gray. The mycelium adheres to agglomerates of various sizes and is colorless, with a few yellow brown or brownish red. The scattered mycelium is short, branched, and has a diameter of about 4 μm. The calcium oxalate crystals are small and have a diameter of about 8 μm, and some aggregates are clustered. After adding sulfuric acid can see a lot of needle-like crystals.
(2) physical and chemical identification of this product is scraped off the outer layer of a small amount of dark brown mycelium, add 1 drop of sodium hydroxide solution, i.e. significant cherry red with hydrochloric acid so acidic, it becomes yellow.
(3) Character identification The dried sclerotia are spherical or irregular round pieces with sizes ranging from 1 to 2 cm in diameter. The surface is purple-brown or gray-brown, and all have slightly raised reticular wrinkles. The quality is solid and heavy, and it is not easy to break; the cross-section is not flat after cracking, and it is white or pale grayish yellow and is granular or silty. The denser ones are translucent, with translucent and opaque sections intertwined into texture. Gaseogen-free, tasteless, granule-like sensation at the beginning of chewing, microstrip mucinous, chewing for a long time melted without residue. It is better to use a big, full, firm, purple-purple, white, and non-silt sand.
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