Study on thermoanalysis-based calamina processing / 中国中药杂志
China Journal of Chinese Materia Medica
;
(24): 4303-4308, 2013.
Artigo
em Chinês
| WPRIM
| ID: wpr-287593
ABSTRACT
Thermogravimetry (TG), TG-MS, Fourier transform infrared spectroscopy (FTIR), scanning electron microscope (SEM)-energy dispersive spectrometer(EDS) were adopted to investigate the pyrolysis characteristics of calamina. According to the findings of the qualitative and quantitative studies on the changes in the content of relevant elements, the whole shape, the functional groups, and the volatile components of calamina before and after being pyrolyzed, the 200-360, 580-750 degrees C were two sensitive temperature ranges related to the changes in effective component during calamina processing. Thermal weight loss was observed for ZnCO3, Zn(OH)2 and ZnCO3-2Zn(OH)2-H2O under 200-360 degrees C and for CaCO3 under 580-750 degrees C. The results of studies on chemical reaction kinetics showed good linear relations. This experiment integrated relevant methods and theories of physical chemistry and science of traditional Chinese medicine processing, and interpretes calamina processing techniques and mechanism, in order to provide a good example for modem studies on other traditional Chinese medicine processing.
Texto completo:
DisponíveL
Índice:
WPRIM (Pacífico Ocidental)
Assunto principal:
Temperatura
/
Óxido de Zinco
/
Cinética
/
Compostos Férricos
/
Química
/
Combinação de Medicamentos
/
Composição de Medicamentos
/
Métodos
Tipo de estudo:
Pesquisa qualitativa
Idioma:
Chinês
Revista:
China Journal of Chinese Materia Medica
Ano de publicação:
2013
Tipo de documento:
Artigo
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