Pangolin identification
Identification of physical and chemical identification, take the processed pangolin tablets 5 grams, pulverized, plus 95% ethanol 50 ml soak overnight, filtered ethanol extract. Take the above ethanol extract 5ml evaporated, dissolved with chloroform 1ml, concentrated sulfuric acid was added dropwise along the wall, the upper light blue, a brown ring in the middle, the lower layer of yellow brown, visible under the ultraviolet light green fluorescent light. Take the above alcohol extract 1ml plus hydrazine trione reagent water bath heating 10min, purple, take processed pangolin tablets 2g, pulverized, soaked overnight with dilute hydrochloric acid, filtration, acid and water extract plus silicotungstic acid reagent, can White flocculent precipitates.
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