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 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
Qualitative identification of volatile oils
Volatile oils, also known as essential oils, in English for essential oils, is a class of aromatic odors present in plants, can be distilled with water vapor an
Identification of alkaloids
A class of nitrogen-containing alkaline organic compounds found in nature (mainly in plants, but some are also found in animals) have alkaloid-like properties,
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
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 on the preparation of solution-type liquid pharmaceuticals
Solution-type liquid pharmaceuticals are liquid pharmaceuticals formed by dispersing small molecules of drugs in a solvent in a molecular or ionic (diameter of
How to make glass milk?
Glass milk can be used for the recovery of DNA, this method has a variety of uses, the secondary include: purification of DNA fragments from agarose gel aliquot