Related Experiment Video
Updated: Jul 4, 2026

An In Vitro Dissolution Determination of Multi-Index Components in Tibetan Medicine Rhodiola Granules
Published on: November 4, 2022
[Character study of content and correlativity of elements in Radix Astragali obtained from different regions]
Lian-Di Lei1, Li Ouyang, Ya-Qiong Liu
1Center of Medical and Health Analysis, Peking University, China.
Objective:
To study the characters of concentration of 42 elements in Radix Astragali and make an attempt at looking for relationship between the element concentration and regions where samplers are obtained.
Method:
Determining the content of elements in 40 Radix Astragali samples from 7 different provinces by ICP-MS, AFS and ASS. Analyzing the correlation of elements in Radix Astragali using statistic software (Spss).
Result:
Firstly, similar lines of element concentration have been acquired in our research. Secondly, it is observed that the content of elements in the samples shows regional diversity. Thirdly, there are 346 correlative element pairs in correlate analysis. And some of them indicate remarkable correlativity.
Conclusion:
With the aid of obtained results, it is concluded that element content in Radix Astragali display special distributing line. Remarkable correlation is presented in some element pairs. The quality of Radix Astragali gained from Neimeng, Shanxi and Gansu are better than those from other regions.
Related Concept Videos
Radical Halogenation: Stereochemistry
Halogenation to form a new chiral center:
Radical Reactivity: Steric Effects
Along with electronic factors, steric factors also account...
Radical Substitution: Allylic Bromination
Radical Oxidation of Allylic and Benzylic Alcohols
Radical Substitution: Halogenation of Alkanes and Alkyl Substituents
In the initiation step of the reaction, the chlorine molecule undergoes homolytic cleavage in the presence of light or heat, forming two highly reactive chlorine radicals. Propagation occurs in two...
Isomerism in Alkenes
An isomer is called cis-2-butene when the methyl groups are on the same side of the double bond, and the other stereoisomer, in which methyl groups are on the opposite side of the double bond, is called trans-2-butene. The cis and trans stereoisomers are not...
