Добро пожаловать в клуб

Показать / Спрятать  Домой  Новости Статьи Файлы Форум Web ссылки F.A.Q. Логобург    Показать / Спрятать

       
Поиск   
Главное меню
ДомойНовостиСтатьиПостановка звуковФайлыКнижный мирФорумСловарьРассылкаКаталог ссылокРейтинг пользователейЧаВо(FAQ)КонкурсWeb магазинКарта сайта

Поздравляем!
Поздравляем нового Логобуржца Светлана79 со вступлением в клуб!

Реклама

КНИЖНЫЙ МИР

Dielectric Thermal Analysis of Pharmaceutical Solids   Manik Pavan Kumar Maheswaram

Dielectric Thermal Analysis of Pharmaceutical Solids

156 страниц. 2014 год.
LAP Lambert Academic Publishing
Morphological and thermodynamic transitions in drugs as well as their amorphous and crystalline content in the solid state have been distinguished by Thermal Analytical techniques, which include DEA, DSC and macro-photo-micrography. DEA measures and differentiates the crystalline solid (low; 10-2 pS/cm) and amorphous liquid (high; 10>6 pS/cm) API electrical ionic conductivity. Drug salts were investigated by DEA in order to evaluate the ionic conductivity and molecular mobility properties in pharmaceutical salts through the measurement of the characteristic activation energies Ea (k), Ea (?) and polarization times (?). These analyses can be used to predict the quality, stability and behavior of a drug salt. The dielectric science developed to understand the crystalline and amorphous components in pharmaceuticals would be validated by calorimetry, X-ray diffraction and scanning electron microscopy. It has been established that the crystalline and amorphous content measured by the DEA...
 
- Генерация страницы: 0.04 секунд -