Study on Two Chelating Resins Removing Heavy Metal from Extracts of Radix Isatidis
- VernacularTitle:两种螯合树脂用于板蓝根提取液脱重金属的比较
- Author:
Jixin WEI
;
Liguo ZHANG
;
Lijun NI
- Publication Type:Journal Article
- Keywords:
Chelating resins;
Radix Isatidis;
Heavy metals;
HPLC
- From:
Traditional Chinese Drug Research & Clinical Pharmacology
1993;0(02):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To study the feasibility of chelating resins A and B removing heavy metals from the extracts of Radix Isatidis.Methods Heavy-metal Removal experiment was performed on automatic control platform in industry mode.With dry ointment yield,comparability of HPLC and removal rate of heavy metals as the indexes,the effects of two kinds of Chelating resins in removing heavy metal were compared.Results After finishing heavy metal removal step,the loss rate of the dry-extract was lower than 7 %,and the heavy metal contents in dry-extract were lower than national limits.HPLC similarity of the extracts before and after removing heavy metals by resin A was higher than 0.97,but that by resin B was very low.Conclusion Chelating resin A is suitable for removing heavy metals from extracts of Radix Isatidis.
