Thermal analysis of anhydrous and hydrated Cholesterol

被引：0
作者：
J Kaloustian
A-M Pauli
P Lechene de la Porte
H Lafont
H Portugal
机构：
[1] Université de la Méditerranée,Laboratoire de Chimie Analytique, Faculté de Pharmacie
[2] Université de la Méditerranée,Inserm Unité 476 (Nutrition Humaine et Lipides), Faculté de Médecine
来源：
Journal of Thermal Analysis and Calorimetry | 2003年 / 71卷
关键词：
DTA; melting; DSC; hydrated cholesterol; TG; gallstones; anhydrous cholesterol;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Cholesterol constitutes the major component of most gallstones. It was identified and determined, in gallstones, issued from eleven patients, by thermal analysis: differential scanning calorimetry (DSC), with the use of the melting temperature and enthalpy, thermogravimetry (TG), with the mass loss of water. Anhydrous cholesterol (ChA) was characterized by two endothermic peaks (polymorphic, melting) and cholesterol monohydrate (ChH) by two endothermic peaks (dehydration, melting), too. Cha needle and Chh plate crystals were observed under polarizing light microscopy. The numerous stones obtained from nine patients were cholesterol stones: the ChA was higher 45 and lower 96%. ChH was present in stones of three patients.
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页码：341 / 351
页数：10
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