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
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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
Identification of saponins
Quantitative determination of saponins can be carried out by thin-layer chromatography (TLC), high-performance liquid chromatography (HPLC), colorimetric method
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
Identification of anthraniloside
Anthracene glycoside and alkali salt chromogenic reaction (Borntrager reaction, sublimation material face up, put under the microscope observation, can see most
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
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
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
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