Identification of flavonoid glycosides
Flavonoid glycosides are polyphenolic substances that belong to the flavonoid group. Flavonoids (also known as flavonoids) refers to a series of compounds consi
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Identification of anthraniloside
Anthracene glycoside and alkali salt chromogenic reaction (Borntrager reaction, sublimation material face up, put under the microscope observation, can see most
Identification of cyanogenic glycosides
Cyanogenic glycosides are mainly glycosides with α-hydroxynitrile. This kind of glycoside is easy to be hydrolyzed by dilute acid and enzyme catalyzed hydrolys
Identification of cardiac glycosides
The molecule consists of an alcohol group or alcohol-like group (ligand, glycoside or glucoside) bound to a variable number of sugar molecules. If the ligand co
Identification of tannins
Tannins, also known as tannins, are a class of complex polyphenolic compounds found in plants. Tannins can be combined with proteins to form an insoluble precip
Experiments on the preparation of fluidized ointment, extract and decoction
The fluid infusion or infusion refers to the preparation made by extracting herbs with suitable solvents, evaporating some or all of the solvents, and adjusting
Experiments in the preparation of liquors and tinctures
Liquor refers to the medicinal herbs with distilled liquor extract made of clarified liquid preparations, generally prepared by impregnation, a few percolation
paper chromatography
Using paper as a carrier, a liquid stationary phase (e.g., water, formamide, or others) is uniformly adsorbed on the paper, and a solvent that is not miscible w
Identification of Glycosides
Glycosides, also known as ligands, are compounds formed when a sugar or a derivative of a sugar is joined to another type of non-sugar substance through the car