The influence of crucible material on the DSC thermal analysis compared to freeze-drying microscopy results


Autoria(s): TATTINI JR., Virgilio; PARRA, Duclerc Fernandes; PITOMBO, Ronaldo Nogueira de Moraes
Contribuinte(s)

UNIVERSIDADE DE SÃO PAULO

Data(s)

19/10/2012

19/10/2012

2009

Resumo

The aim of this study was to investigate the influence of different crucible materials on the thermal analysis of binary systems. The thermal properties of two distinct solutions were measured both by Differential Scanning Calorimetry (DSC) and freeze-drying microscopy and the results were compared. The glass transition of the maximally freeze-concentrate (T (g)`) and the eutectic melting temperature (T (eut)) were not influenced by the crucible material. However the heat of fusion (Delta H) involved during the T (eut) as well as the Delta C (p) involved during the T (g)` of the solutions were affected.

FAPESP (The State of Sao Paulo Research Foundation)

CNPq (National Council for Scientific and Technological Development)

Identificador

JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY, v.98, n.1, p.203-206, 2009

1388-6150

http://producao.usp.br/handle/BDPI/19777

10.1007/s10973-009-0317-8

http://dx.doi.org/10.1007/s10973-009-0317-8

Idioma(s)

eng

Publicador

SPRINGER

Relação

Journal of Thermal Analysis and Calorimetry

Direitos

restrictedAccess

Copyright SPRINGER

Palavras-Chave #Lyophilization #Eutectic temperature #Glass transition temperature #Differential scanning calorimetry #Freeze-drying microscopy #GLASS-TRANSITION #RELAXATION #TREHALOSE #COLLAPSE #Chemistry, Analytical #Chemistry, Physical
Tipo

article

original article

publishedVersion