Adsorption Property of Avilamycin on Silica Gel-based Absorbent / 中国药学杂志
Chinese Pharmaceutical Journal
;
(24): 1388-1394, 2018.
Artigo
em Chinês
| WPRIM
| ID: wpr-858242
ABSTRACT
OBJECTIVE:
To investigate the kinetic and thermodynamic characteristics of adsorption of avilamycin on silica gel.METHODS:
By measuring the adsorption of avilamycin on silica gel at different temperatures, the adsorption kinetics curves and adsorption isotherm were drawn, and the kinetics and thermodynamic parameters were studied.RESULTS:
The adsorption of avilamycin on silica gel could be described well by Pseudo-second-order model. The adsorption process had feature of shrinking nonreactive core model, and the internal diffusion was the main rate-limiting step. The equilibrium adsorption data of avilamycin on silica gel fit the Langmuir isotherms well. The thermodynamic parameters were as followschange in entropy (ΔS) was 108.115 2 J·mol-1·K-1, change in enthalpy (ΔH) was 24.654 6 J·mol-1, and changes in free energy (ΔG) were -8.752 9, -8.104 3, and -7.455 6 J·mol-1 at 309, 303 and 297 K, respectively.CONCLUSION:
TheRESULTS:
of this study provide a theoretical basis for further study on the isolation and purification of high purity avilamycin by silica gel.
Texto completo:
DisponíveL
Índice:
WPRIM (Pacífico Ocidental)
Tipo de estudo:
Estudo prognóstico
Idioma:
Chinês
Revista:
Chinese Pharmaceutical Journal
Ano de publicação:
2018
Tipo de documento:
Artigo
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