Coulometric titration of total flavonoids in Sophora japonica L.
A method for the determination of total flavonoids in Sophora japonica L. by coulometric titration was developed. The titration was carried out in a mixture of 1 mol/L KBr--2 mol/L HCl (1:1) and bromine was generated at the anode, rutin reacted with two moles of bromine with an n value of 4. The advantages of this method are simple and rapid, it can be used to analyze small amount of sample.
Xu
L X
LX
Liu
A R
AR
Zhang
X Q
XQ
D004365:Drugs, Chinese Herbal / Q000032:analysis*; D004572:Electrolysis; D005419:Flavonoids / Q000032:analysis*
D004365:Drugs, Chinese Herbal; D005419:Flavonoids