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Article # : SC01 |
Sema Çalış, Ph.D. Professor |
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Determination of Specific Surface Area of Some Antacids
Dr. Murat Şumnu* / Ecz. Sema Çalış* / Dr.Yüksel Sarıkaya** / Dr. A. Atilla Hıncal*
* Hacettepe University, Faculty of Pharmacy, Pharmaceutical Technology Department, 06100 Ankara-TURKEY ** Ankara University, Faculty of Science, Tandoğan-Ankara.
Summary Specific surface areas of magnesium trisilicate, magnesium okside, magnesium carbonate, aluminum hydroxide, magnesium hydroxide, dihydroxy aluminum sodium carbonate and kaolin which are an active substances in antacid formulations and take place in pharmaceutical formulations as an additive are measured by using BET adsorption apparatus. The specific surface areas are calculated using BET, Harkins-Jura and de Boer-Lippens methods and is found that magnesium trisilicate posses the highest specific surface area. The results were discussed with respect to adsorption of drugs on antacid substances.
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