@article {10.3844/ajidsp.2009.193.199,
article_type = {journal},
title = {Standardization of Metal-Based Herbal Medicines},
author = {Sudha, Arun and Murty, V. S. and Chandra, T. S.},
volume = {5},
number = {3},
year = {2009},
month = {Sep},
pages = {193-199},
doi = {10.3844/ajidsp.2009.193.199},
url = {https://thescipub.com/abstract/ajidsp.2009.193.199},
abstract = {Problem statement: Standardization of herbal drugs is a burning 
topic in herbal drug industry today. Standardization is difficult because they 
are usually mixtures of many constituents and the active principle in most cases 
is unknown. However it is possible to generate a physico-chemical fingerprint 
for the standardization of these drugs with reference to authentic drugs, for 
monitoring variation between preparations from different companies and for evaluating 
batch to batch changes during long term storage. The present study was on the 
characterization of some of the metal based herbal medicines which were in traditional 
use for treating infectious diseases. Approach: Modern techniques 
such as X-Ray Diffraction (XRD), Scanning Electron Microscopy (SEM), Energy Dispersive 
X-ray Analysis (EDAX), Infrared spectroscopy (IR), Thermogravimetric Analysis 
(TGA), Inductively Coupled Plasma-Optical Emission Spectroscopy (ICP-OES) and 
Transmission Electron Microscopy (TEM) were used to generate physico-chemical 
fingerprint. Results: Our results showed that the metals in most 
of the herbal medicines were in the oxide or sulfide form. Some of the medicines 
contained metal particles in the nano range. Conclusion: In order 
to bring out high quality herbal products, herbal drugs must be standardized using 
modern techniques.},
journal = {American Journal of Infectious Diseases},
publisher = {Science Publications}
}