The Quantitative Analysis of Trace Germanium in 18 Kinds of Chinese Medicinal Herbs
- VernacularTitle:18种中草药中痕量锗的定量测定
- Author:
Yan LIU
;
Keli MA
;
Yin WANG
- Publication Type:Journal Article
- From:
Chinese Traditional and Herbal Drugs
1994;0(06):-
- CountryChina
- Language:Chinese
-
Abstract:
By digestion with concentration sulfate acid and fuming nitri c acid under refluxing coprecipitation with Fe(OH)3, colorimetry with phenylfluorone-cetyl trimethyl ammonium bromide (CTMAB), germanium (Ge) contents of 18 kinds of Chinese medicinal herbs were determined. The Ge contents in Ganoderma lucidum and oldenladia diffusa were higher than those of others (2.46 and 0.35 ?10-8, respectively).In this method, the recoveries of Ge added to various herbs were in the range of 91%~93%. The detection limit and coefficient variation were 198 ng/g and 0.89%, respectively.
